The required competition mark is given as 60, as of the given condition.
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
A competition mark is calculated by doubling the sum of the top and bottom four scores and then averaging them.
According to the question,
Competition mark = 2 [7 + 6 + 8 + 5] + [7 + 9] / 2
Competition mark = 52 + 8 = 60
Thus, the competition mark is 60.
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I think of a number and add 3. The answer is 18
Answer: 15
Step-by-step explanation:
15+3=18
Jethro and $50 to hi cafeteria account that had $40 on it already each time he buy lunch $4. 50 i deducted from the account write an equation in lope intercept form relating the number of lunche purchaed X to the amount of money remaining on the cafeteria count why what i the maximum number of lunche Jethro can purchae math problem
He has a total of $90 in his cafeteria wallet, thus the most lunches he may purchase is 20.
What is division?A number is divided in division, which is a straightforward procedure. The simplest way to conceptualize it is as a set of objects being distributed among a set of individuals, as in the example given above. In mathematics, division is the process of dividing a number into equal parts and calculating the maximum number of equal parts that can be made. For instance, dividing 15 by 3 results in the division of 15 into 3 groups of 5 each.
Here,
Amount added=$50
Amount already in wallet=$40
Total amount in wallet=50+40
=$90
Cost of each lunch=$4.5
Number of lunch he can buy,
=90/4.5
=20
The maximum number of lunch he can buy is 20 lunch as he has a total of $90 in his cafeteria wallet.
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Are the lines C and D parallel? (The figure may not be drawn to scale). Giving brainliest for whoever answers correctly
1. Yes
2.no
3. Can’t be determined
The lines C and D are parallel.
What is a line?
In pure mathematics, a line is an infinitely long object with no dimension, depth, or curvature. Thus, lines ar one-dimensional objects, although they'll exist in 2, three, or higher dimension areas
Main body:
As Line LM cuts the line at C the angle made by both line is 48°
and line NP cuts the line at D , the angle made by line is 132°
we know that to make a line parallel , the sum of angle on one side of the line should be 180°
∠C +∠D = 48° +132°
= 180°
Hence , the lines C and D are parallel.
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The graph of g(x) is a transformation of the graph of f(x) = 3^x enter the equation for g(x) in the box
Answer:
g(x)=3^x+7
Step-by-step explanation:
f(0)=3^0
that is the y-intercept
now we can take the known y-intercept of g(x) which is 8 and then we can get our b in the y=mx+b equation.
Last year at a certain high school, there were 60 boys on the honor roll and 100 girls on the honor roll. This year, the number of boys on the honor roll increased by 20% and the number of girls on the honor roll increased by 3%. By what percentage did the total number of students on the honor roll increase? round your answer to the nearest tenth (if necessary).
The percent increase in the total number of students on the honor roll is 9.4% .
In the question,
it is given that ,
last year , the number of boys in the honor roll is = 60 boys ,
the number of girls in the honor roll is = 100 girls ,
total number of students last year = 160
percent increase in the number of boys in the honor roll is = 20% ,
so , number of boys become = 60 + (0.20*60) = 72 boys ,
percent increase in the number of girls in the honor roll is = 3% ,
so , number of girls become = 100 + (0.03*100) = 103 girls ,
total number of students this year = 103 + 72 = 175 .
increase in number of students = 175 - 160 = 15
So , percent increase is = (15/160) × 100
= 0.09375 × 100
= 9.375 %
≈ 9.4%
Therefore , the percent increase is 9.4% .
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Henry is building an in-ground pool at his house. He is doing most of the work himself to save money. To dig the pool, he rents a small backhoe for $95.50 a day. If his total bill comes to $286.50, for how many days does he rent the backhoe?
To dig the pool, he rents a small backhoe for $95.50 a day. If his total bill comes to $286.50, for 3 days does he rent the backhoe.
What is backhoe?
A backhoe, also known as a rear actor or back actor, is a type of digging apparatus, often known as a digger, that has a digging bucket attached to the end of a two-part articulated arm. Usually, it is attached to the rear of a tractor or front loader, the latter of which is known as a "backhoe loader."
$286.50/$95.50= 3
Henry is building an in-ground pool at his house. He is doing most of the work himself to save money. To dig the pool, he rents a small backhoe for $95.50 a day. If his total bill comes to $286.50, for 3 days does he rent the backhoe.
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simple q help pls due tomorrow
Answer:
(1/2x+3)(1/2x+3)
OR
[tex](1/2x+3)^{2}[/tex]
Given triangle ABC with m
The lengths of AN=2.5cm and MN=3.5cm
What is similar triangle?
Similar triangles are triangles that have a similar form, however their sizes might vary.
Main body:
IN ΔAMN ≈ΔABC
Since MN∣∣BC
∠AMN=∠ABC (Corresponding angles)
∠ANM=∠ACB (Corresponding angles)
∴ΔAMN∼ΔABC(By $$AA similarity criterion)
⇒AM/AB =AN/AC=MN/BC (CPCT)
since , M is the mid point of AB.
AM = 1/2 AB , OR
AM/AB = 1/2
AM/AB =AN/AC = 1/2
AN/AC = 1/2
AN/5= 1/2
AN = 2.5 cm
AM/AB =MN/BC = 1/2
[∵BC=7cm]
MN/7 = 1/2
MN= 7/2 =3.5
Hence , the lengths of AN=2.5cm and MN=3.5cm
the complete question is :
In triangle ABC, M is mid-point of AB and a straight line through M and parallel to BC cuts AC at N. Find the lenghts of AN and MN, if BC=7cm and AC=5cm.
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50 POINTS IF ANSWERED PLSS!!!!!
Mr. Hansen has three sticks that measure 5 inches, 10 inches, and 17 inches. If he connects the sticks ends, will the three sticks form a triangle?
Answer:
No
Step-by-step explanation:
5+10=15, which cannot be less than 17
How do I find all the squares from 1 to 20?
Answer:
2.4.6.8.10
Step-by-step explanation:
that's the answer
Answer:
1, 4, 9, 16, 25, 36, 49, 64, 81, 100
Step-by-step explanation:
1, 4, 9, 16, 25, 36, 49, 64, 81, 100, multiply all numbers frmo 1 to 10
Describe fully the single transformation which takes shape A to shape B.
A
51
4
3
2
+
-5 -4 -3 -2 -1 0
-1
-2
-3
-4
-5
B
33/54 Maks
1 2 3 4 5
-X
D
Answer:
x=d
Step-by-step explanation:
a dilation is a transformation that maps every point on a line segment to a point on a parallel line segment. the image has a length that is determined by the preimage and a scale factor, which is a fixed _[blank]_ of the original segment's length.
Answer:
multiple
Step-by-step explanation:
I had the same question and guessed and that was the answer lol
In triangle XYZ, m∠Y = 62.45° and m∠Z = 41.8°. Determine the measure of the exterior angle to ∠X.
104.25°
75.75°
37.85°
18.94°
The exterior angle to ∠X is 104.25°
What is the exterior angle theorem?The exterior angle theorem states that when a triangle's side is extended, the resultant exterior angle formed is equal to the sum of the measures of the two opposite interior angles of the triangle. The theorem can be used to find the measure of an unknown angle in a triangle.
from the above definition , if ∠Y = 62.45° and ∠Z = 41.8°
It means from exterior angle theorem that
exterior ∠X = ∠Y + ∠Z
exterior ∠X = 62.45° + 41.8°
exterior ∠X = 104.25°
In conclusion the exterior angle X is 104.25°
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Solve the system of linear equations by substitution -5x+6y=-11 6y=x+5
Answer:
Step-by-step explanation:
y = 1/6x + 5/6
-5x + 6(1/6x + 5/6) = -11
-5x + x + 5 = -11
-4x + 5 = -11
-4x = -16
x = 4
y = 2/3 + 5/6
y = 7/6 or 1 1/6
(4, 7/6)
Which of the following equations has infinitely many real solutions?
A.
3(x-6)= 3x + 18
B.
3(x-6)= 3x - 18
C.
3x+1=x-1
3x + 1 = 3x - 1
D.
Answer:
B: 3(x-6) = 3x-18
Step-by-step explanation:
The left and right sides of this equation are actually equal! We can see this by dividing the 3 on the left through the parentheses. This gives us [tex]3x-18[/tex], which is equal to the right-hand side of the equation!
To solidify this, we add 18 to both sides, and subtract 3x from both sides, which gives us that 0=0, so there are infinitely many solutions for x(since no matter what x is, it will result in 0=0 which is always true).
I hope this helps!
-Wilson Middle School wants to rent tables for their weeklong art festival. One rental company charges a $20 setup
fee and $12 per table for the week. Another rental company charges a $30 setup fee and $10 per table for the week.
How many tables can the school rent for the charge to be the same for both companies?
Answer:
5 tables
Step-by-step explanation:
Let x be the number of tables the school needs to rent, and c be the total cost of renting the tables.
We can use the following equation to represent the cost of renting from the first company:
c = 20 + 12x
And we can use the following equation to represent the cost of renting from the second company:
c = 30 + 10x
As c is the same constant in both equations, we can say the following:
20 + 12x = 30 + 10x
Now we can solve this equation by simplifying:
20 + 12x = 30 + 10x
20 + 2x = 30
2x = 10
x = 5
Therefore, the school will need to rent 5 tables for the cost to be the same from both renting companies.
Answer: 5 tables
Step-by-step explanation:
The first rental company will charge $32 for one table.
The second rental company will charge $40 for one table.
So if we make a table, and keep adding $12 to the first company and $10 to the second it will look like this.
First company Second company Table
$32 $40 1
$44 $50 2
$56 $60 3
$68 $70 4
$80 $80 5
Therefore, the school can rent 5 tables for the same price in both companies.
Simplify each ratio. Make sure to convert the units when needed
6 hours: 4 days (Hint: There are 24 hours each day.)
Answer:
1 : 16
Step-by-step explanation:
6 hours : 4 days
6 hours : 96 hours
1 hour : 16 hours
Find the length indicated
Answer: 20
Step-by-step explanation:
Using the side splitter theorem yields:
[tex]\frac{?}{5}=\frac{12}{3}\\\\\frac{?}{5}=4\\\\?=20[/tex]
Answer:
20
Step-by-step explanation:
the scale factor from the little triangle to the larger triangle is 5/4
[tex]\frac{5x}{4}[/tex] = x + 5 Multiple through by 4 to clear the fraction
5x = 4x + 20 Subtract 4x from both sides
x = 20
8.2 end of unit assessment Triangle ABC and DEF are similar
The Assessment Triangle and the Domains and Dimensions of the Assessment Framework.
How to Find the Perimeter of Similar Triangles?If two triangles are similar to each other, and the perimeter of one is A with a side length of a, and the perimeter of the other is B with a side length of b, then, the following below is the ratio of their perimeters are intended as a reminder to professionals undertaking the assessment and to be given to parents to help them understand the areas the worker will want to explore.The PAT was originally developed in 1996 by Dr s. Ronald Dickman, Dena Brownstein and Marianne Gausche-Hill as a novel tool to standardize the initial assessment of infants and children for all levels of health care providers.Background The Paediatric Assessment Triangle (PAT) has been proven to be effective in the general impression of the health status of the child and can interlink the potential underlying pathophysiology so to alert the clinician into how critically ill/ injured the child might bePerimeter of A/perimeter of B = a/b
Given that triangles ABC and DEF are similar triangles, we have the following:
Perimeter of triangle ABC = x
One side length of triangle ABC = 4 cm
Perimeter of triangle DEF = 12 + 6 + 9 = 27 cm
One side length of triangle DEF = 6 cm
Therefore:
x/27 = 4/6
Cross multiply
6x = (27)(4)
6x = 108
6x/6 = 108/6
x = 18
Thus, the perimeter of tr8angle DEF that is similar to triangle ABC is: 18 cm.
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Literal Equations
help asap !!
Answer:
Step-by-step explanation:
y = 6x + 42
6x + 42 = y
6x = y - 42
x = (y - 42)/6
Help solve this please:
Adam has saved £2 less than Dan.
Write and expression for the amount that Dan saved.
Sheri’s house is 0.05 miles from Abdul’s house. The post office is 0.1 mile from Abdul’s house. The school is 38mile from the post office.
If Sheri stops at Abdul’s house, and the post office on her way to school, how far will Sheri walk in all?
Answer:
39.05 miles
Step-by-step explanation:
0.05+0.1+38
Mary has 30 hats. She has 5 green, 7 blue, 12 red, and 6 brown. If she selects two hats at random, what is the probability that both hats are different colors?
P(Picking one Green Hat and Something Else)=
P(Picking one Blue Hat and Something Else)=
P(Picking one Red Hat and Something Else)=
p(Picking one Brown hat and something Else)=
Add the probabilities together to answer the question
The probability that both hats are different colors is; 0.7425
How to find the probability of selection?We are given;
Total number of hats = 30 hats
Number of green hats = 5 hats
Number of blue hats = 7 hats
Number of red hats = 12 hats
Number of brown hats = 6 hats
Now, if Mary selects two hats at random, then the probability that they are different colors is;
P(they are different colors) = 1 - P(both are the same color)
P(both are the same color) = (⁵/₃₀ * ⁴/₂₉) + (⁷/₃₀ * ⁶/₂₉) + (¹²/₃₀ * ¹¹/₂₉) + ( ⁶/₃₀ * ⁵/₂₉)
= (20 + 42 + 132 + 30)/(30*29)
= 224/(30*29)
= 0.2575
Thus;
P(they are different colors) = 1 - 0.2575
P(they are different colors) = 0.7425
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What is the relationship between a 90% confidence interval around a mean and a 95% confidence interval around a mean?.
You have a 5% probability of being incorrect with a 95% confidence interval. You have a 10% probability of being incorrect with a 90% confidence interval.
What is the mean's 90% confidence interval?We can be 90% certain that the interval contains the population mean,, if the level of confidence is 90%. The associated z-scores are 1.645. We can be 95% certain that the interval contains the population mean, if the level of confidence is 95%.
What happens when two confidence intervals overlap?In other words, the difference in effect estimates between the two subgroups is deemed to be statistically unimportant if the confidence intervals overlap.
You have a 5% probability of being incorrect with a 95% confidence interval. You have a 10% probability of being incorrect with a 90% confidence interval. A 95% confidence interval is narrower than a 99% confidence interval.
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Sam wants to purchase birthday gifts for his two sisters that share the same birthday. One sister likes daisies which cost $2 per stem and the other likes tulips which cost $3 per stem. 1). If he has $12 to spend, how many of each could he buy?
You must write an inequality.
2). Graph your solution
The inequality which represents is 2x + 3y ≤ 12 where x is the number of daisies and y is the number of tulips.
What is inequality?A mathematical phrase in which the sides are not equal is referred to as being unequal. In essence, a comparison of any two values reveals whether one is less than, larger than, or equal to the value on the opposite side of the equation.
Suppose the cost of one daisy is x while the cost of one tulip is y.
2x + 3y will be totally spent and it can be almost $12.
2x + 3y ≤ 12
Hence "The inequality which represents is 2x + 3y ≤ 12 where x is the number of daisies and y is the number of tulips.".
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Consider the functions
Answer:
(fog)(x) = 4x^2 -12x +10
(gof)(x) = 2x^2 -1
Step-by-step explanation:
(fog)(x) = (2x-3)^2 + 1
= 4x^2 + 9 -12x +1
= 4x^2 -12x +10
(gof)(x) = 2(x^2+1)-3
= 2x^2 +2 -3
= 2x^2 -1
passes through (0, -5) and has vertex (-1, 4)
The equation of the parabola that passes through (0, -5) and has a vertex at (-1, 4) will be y = -9(x + 1)² + 4.
What is the equation of the parabola?Let the point (h, k) be the vertex of the parabola and a be the leading coefficient.
Then the equation of the parabola will be given as,
y = a(x - h)² + k
The vertex of the parabola is at (-1, 4). Then the equation is given as,
y = a(x + 1)² + 4
The equation passes through (0, -5), then we have
y = a(x + 1)² + 4
-5 = a(0 + 1)² + 4
-5 = a + 4
a = -9
Then the equation of the parabola that passes through (0, -5) and has a vertex at (-1, 4) will be y = -9(x + 1)² + 4
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A publisher used 10 boxes to send 375 books to a local book retailer. The
small boxes hold 30 books and each large box holds 55 books. Determine
the number of small and the number of large boxes used.
Answer: Number of small boxes = 7, Number of large boxes =3
Step-by-step explanation:
Let x= Number of small boxes , y = Number of large boxes.
As per given , 30x+55y=375 (i)
x+y=10 (ii)
Multiply (ii) by 30, we get
30x+30y=300 (iii)
Eliminate (iii) from (i), we get
25y=75
⇒ y= 3 [Divide both sides by 25]
Put y=3 in (ii), we get
x+3=10 ⇒ x=7
Hence, Number of small boxes = 7, Number of large boxes =3
Hope this helps!!! :)
Help meeee how do I solve
18x2 + 9x - 20
Answer:
18x^2 + 9x - 20
18x^2 + 24x - 15x - 20
6x(3x+4) - 5(3x+4)
Therefore, (6x-5)(3x+4)
a grocer can buy strawberries for 1.38 per pound
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
1 pound = $1.38
175 pounds = $241.50
The number of pounds for the strawberries order of $241.50 is
175 pounds.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Cost of strawberries per pound = $1.38
The cost of a strawberry order = $241.50
The number of pounds for the order of $241.50.
1 pound = $1.38
Multiply 241.50/1.38 on both sides.
241.50/1.38 x 1 pound = $241.50
175 pounds = $241.50
Thus,
The number of pounds for the strawberries order of $241.50 is
175 pounds.
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The complete question is:
A grocer can buy strawberries for $1.38 per pound.
Write an equation relating c, the cost, and p, the pounds of strawberries.
A strawberry order cost $241.50.
How many pounds did the grocer order?