Answer:
39 and 19
Step-by-step explanation:
sum: a+b=58
larger: a-b=20
(a+b)-(a-b)=58-20
2b=38 --> b = 19, a=39
Which of the following correctly shows the re-grouping strategy for solving 57 x 18?
50 x 10; 7 x 10; 10 x 8; 7 x 8
50 x 10; 7 x 10; 50 x 8; 7 x 8
50 x 10; 7 x 50; 50 x 8; 7 x 8
10 x 8; 7 x 10; 50 x 8; 7 x 8
Answer:
map
Step-by-step explanation:
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.
With the regrouping strategy, we get,
50 x 10; 7 x 10; 50 x 8; 7 x 8
Option B is the correct answer.
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,
57 x 18
This can be written as,
(50 + 7) x (10 + 8)
Simplifying we get,
(50 x 10) + (50 x 8) + (7 x 10) + (7 x 8)
Now,
With the regrouping strategy, we get,
(50 x 10)
(50 x 8)
(7 x 10)
(7 x 8)
Thus,
With the regrouping strategy, we get,
50 x 10; 7 x 10; 50 x 8; 7 x 8
Option B is the correct answer.
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carla, bev, and ashley took their unit 2 math test. carla made an 80 and bev made a 75. what was ashleys score on the test if their average was 78.
Answer:
Ashley = 79
Step-by-step explanation:
[tex]Average=\frac{Carla+Bev+Ashley}{3}=78\\\\\frac{80+75+Ashley}{3}= 78 \\\\\frac{155+Ashley}{3}=78\\\\\frac{155+Ashley}{3}*\frac{3}{1} =78*3\\\\155+Ashley=234\\[/tex]
Subtract 155 from both sides;
Ashley = 79
Please solve with elimination
5x + 9y =-5
3x -8y = -3
help I will give brainliest
please show work
Answer:
Step-by-step explanation:
5x+9y=-3 Multiply both sides by 8
40x+72y=-24
-53x-8y=-3 Multiply both sides by 9
-477x -72y= -27
sum the equations vertically to eliminate one variable
40x+72y= -24
-477x-72y= -27 (the y cancels out )
-477x =-51 (-24 + -27=-51)
-477x=-51 / -477 divide both sides by -477
x =51/437
5x 51/437=9y= -3 substitute the value of x
y= -174 /437
(x,y) = (51/437, -174/437)
Sam's dad says he will pay a fraction of his mobile phone bill. Would Sam rather his dad paid 1/2 of the bill or the 1/3?
Answer:
matters
Step-by-step explanation:
if sam doesnt want his dad to spend a lot of money on him then 1/3
but if sam wants to pay less then 1/2
1/2 is more then 1/3
Find the slope of the line that passes through (5, 13) and (9, 10).
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Answer:
The slope between (5, 13) and (9, 10) is:
[tex]m=-\frac{3}{4}[/tex]Step-by-step explanation:
Given the points
(5, 13)(9, 10)Finding the slope between (5, 13) and (9, 10)
[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]m=\frac{10-13}{9-5}[/tex]
[tex]m=-\frac{3}{4}[/tex]
Therefore, the slope between (5, 13) and (9, 10) is:
[tex]m=-\frac{3}{4}[/tex]PLEASE HELP! I WILL GIVE BRAINLIEST! pleeeaaaasssseee!
Solve by factoring
Answer:
n = -35/1301
Step-by-step explanation:
1225n+76n=1301n=-35
n = -35/1301
Whats the answer help please
Need now thank you
Correct answer
Will give brainliest
Answer:The slope is 6/7
Step-by-step explanation:
when finding the slope you will need to move the 6x to the other side of the equation by subtracting which gives you 7y=14-6x and all that is left is to divide by 7 which gives y=14-6/7y
Answer:
6x - 7y = 14
⇔ 6x - 14 = 7y
⇔ 6/7.x - 2 = y
=> the slope is 6/7
Step-by-step explanation:
Jeff ordered 5 pizzas for his daughters birthday
party. Each pizza has 8 slices. At the party, 50%
of the pizzas were eaten. When the party was
over, Jeff ate 20% of what was left. How many
did Jeff eat?
Answer:
4 slices.
Step-by-step explanation:
5 x 8 = 40. 40 slices of pizza divded by 2 since 50% = 2.
20 slices, 20% of 20 slices or 20 in general is 4
Predict the exam grade for a student who studies 10 hours per week.
hours studied 5 9 3 12 1
exam grade 80 95 75 98 70
Answer:
100
Step-by-step explanation:
100
solve by substitution
y=x+7
2x+y=-5
Answer:
(-4,3) or X=-4, y=3
Step-by-step explanation:
when solving for the first variable once you have the result then substitute the result into the other equation.
if you know the answer to this PLEASE HELPPPP MEEE
Answer:
-2, -1, 1, 3
Step-by-step explanation:
Range is the amount so that is why it is the answer
Halla tres enteros impares consecutivos tales que 3 veces el entero del medio es 5 mas que la suma del primero y el tercero.
Responder:
3, 5, 7
Explicación paso a paso:
Sean enteros impares consecutivos:
x, x + 2, x + 4
3 (x + 2) = (x + x + 4) + 5
3x + 6 = (2x + 4 + 5)
3x + 6 = 2x + 9
3x - 2x = 9 - 6
x = 3
Por lo tanto,
x = 3; (x + 2) = 3 +2 = 5; x + 4 = .3 + 4 = 7
(3, 5 y 7)
What is the absolute magnitude of a star that has a period of 50 days?
Answer:
-6.07
Step-by-step explanation:
Which list is in order from least to greatest?
A. 2/3, 29%, 1/4 , 0.06
B. 2/3, 1/4, 29%, 0.06
C. 0.06, 1/4, 29%, 2/3
D. 1/4, 2/3, 0.06, 29%
Answer:
c
Step-by-step explanation:
2/3 converts to 0.66666667, 66.67%
1/4 converts to 0.25 , 25%
0.06 converts to 6%
So the order from least to greatest would be 0.06 , 1/4 , 29% , 2/3
which line is parallel to y=8x+11?
Answer:
Any line with a slope of 8 is parallel to y = 8x + 11. Some examples are:
y = 8x + 5
y = 8x + 1000
y = 8x +9
It doesn't matter what the y-intercept as long as the slope remains the same for a parallel line.
Answer:
Like the other person said, any line that has the same slope (8) will be parallel.
Step-by-step explanation:
Alana runs 4 laps around the track in 10 minutes. If Alana runs 17 laps at the same rate how long does it take her
Answer:
42 minues 5 seconds to do 17 laps.
Step-by-step explanation:
it takes her 2 minuetes and 50 seconds to do 1 lap if you multiply 2.5x17=
42 munites and 5 secondesto do 17 laps
Answer:
It would take 42.5 min
Step-by-step explanation:
4/10 = 2.5(unit rate for every lap it takes 2.5 min)
17 x 2.5 = 42.5
Kam can make 72 cookies in 3 hours, Madison can make 128 cookies in 4 hours. How many hours would it take them to make 200 cookies together?
Answer:
3.7 hours
Step-by-step explanation:
Answer:
3.7 hours
Step-by-step explanation
Kam
x = 72/3 . = 24 cookies/h
Madison
x = 120 / 4 = 30 cookies/hour
Now we write and equation where "t" will be time
24t + 30t = 200
54t = 200
t = 200/54
t = 3.7 hours
Find the area. Simplify your answer.
3x-3
3x+6
Answer:
3x^2 + 7x - 18
Step-by-step explanation:
what is one thousandth less than 0.029
Answer:
0.0009
Step-by-step explanation:
Kellie ran 1/5 mile in 1 1/2 minutes at this rate , how long would it take her to run 1 mile
Answer:
PLZ MARK BRAINLIEST
The answer is 7.5 miles or 7 1/2.
Step-by-step explanation:
1 1/2 times 5= 7 1/2 or 7.5 miles
Answer:
7 1/2 min
Step-by-step explanation:
1.5 x 5 = 7.5 She ran 1 mile in 7 1/2 min
3 n - 5 p + 2 n = 10 p for n
Answer:
What do you mean
Step-by-step explanation:
if three fourth of a number is one-thenths, what is the number please show with steps first person answer u will get branliest!!!
Let x be the number we are searching for.
(3/4)x = 1/10
I don’t know how to set it up nor do it please help me
Answer:
The value of x is 3
Step-by-step explanation:
∵ Quadrilateral ABCD is congruent to quadrilateral JKLM
∴ AB = JK and BC = KL
∴ CD = LM and AD = JM
∵ BC = 8x + 7
∵ KL = 31
∵ BC = KL
→ Equate their right sides
∴ 8x + 7 = 31
→ Subtract 7 from both sides
∵ 8x + 7 - 7 = 31 - 7
∴ 8x = 24
→ Divide both sides by 8 to find x
∴ [tex]\frac{8x}{8}[/tex] = [tex]\frac{24}{8}[/tex]
∴ x = 3
∴ The value of x is 3
Ramon would like to plant a garden where each row has the same combination of plants. If
Ramon has 27 tomato plants, 15 cucumber plants and 6 basil plants, what is the greatest number of rows the garden can have if Ramon uses all of the plants?
Answer:
48
Step-by-step explanation:
The greatest number of rows that can be formed in the garden will be 3.
What is the highest common factor?The Highest Common Factor (HCF) of two numbers is the highest possible number that is divisible by both numbers.
In other words, the highest common factor is the common factor between the two numbers but it should be the highest among all common factors.
As per the given,
Ramon has 27 tomato plants, 15 cucumber plants, and 6 basil plants.
Factors of 27 = 1, 3, 9, and 27.
Factors of 15 = 1, 3, 5 and 15
Factors of 6 = 1, 2, 3 and 6
The GCF of 27,15 and 6 is 3.
Thus, only three raws are possible.
Hence "The greatest number of rows that can be formed in the garden will be 3".
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How many factors of 100 are also multiples of 5?
Let us write the factors of 100. A factor of 100 can only be a multiple of five if it is divisible by five.
Divisibility rule of 5: A number can only be divisible by five if the ones digit of the number is a five or 0.Factors of 100 ⇒ numbers divisible by 100 ⇒ 1, 2, 4, 5, 10, 20, 25, 50, 100
When checking each factor of 100;
1 is not a multiple of 5 ⇔ not divisible by 5.2 is not a multiple of 5 ⇔ not divisible by 5.4 is not a multiple of 5 ⇔ not divisible by 5.5 is a multiple of 5 ⇔ divisible by 5.10 is a multiple of 5 ⇔ divisible by 5.20 is a multiple of 5 ⇔ divisible by 5.50 is a multiple of 5 ⇔ divisible by 5.100 is a multiple of 5 ⇔ divisible by 5.⇒ Five factors are multiples of 5.
Therefore, five factors of 100 are multiples of 5.
Nat’s grocery bill was $150, which included a 5% club discount. What was Nat’s bill before the discount? Write and solve an equation.
Please show work
Find the slope of the line through the given points.
(-9, -7) and (-11, -13)
What is the equation of the line shown in the graph?
Drag and drop the expressions to write the equation of the line in slope-intercept form.
y = Response area + Response area
A function graph of a line with two points (-3,-2) and (-1,2) with an x axis of negative five to five and a y axis of negative five to five
9514 1404 393
Answer:
y = 2x + 4
Step-by-step explanation:
You have the graph, so you can read the slope and y-intercept from it. The line goes up 2 units for each unit to the right, so the slope is ...
slope = rise/run = 2/1 = 2
The y-intercept is where the graph crosses the y-axis, at y=4.
The slope-intercept form of the equation for a line is ...
y = mx + b
where m is the slope (2) and b is the y-intercept (4). Your equation is ...
y = 2x +4
Answer: First blank; -x
second; -2
Step-by-step explanation:
Paul bought 1 1/3 pounds of bananas and apples. If he bought 1 4/5 pounds of apples, how many pounds of bananas did he buy
Answer:
that doesn't make sense. u cant buy more lbs of apples than apples and bananas combined
Step-by-step explanation:
Answer:
7/15
Step-by-step explanation:
Hope this helps!! :)
A number t multiplied by −4 is at least −25.
Answer:
[tex]t\leq 6.25[/tex] in decimal form
[tex]t\leq \frac{25}{4}[/tex] in fractional form
Step-by-step explanation:
-4 times a number t is greater than or equal to - 25. This is what they mean by at least.
[tex]-4t \geq -25[/tex]
Solve for t.
[tex]t\leq \frac{-25}{-4}[/tex] , we flip the inequality because we are dividing by a negative number.
[tex]t\leq 6.25[/tex]