Answer:
The percent change in enrollment at Main Middle School was about 20%
Step-by-step explanation:
Percentages
There was a change of enrollments in the 7th grade at Main Middle School from 612 to 489 due to openings of a new school.
The change in the number of enrollments was 612 - 489 = 123.
To express it as a percentage, we divide by the original number and then multiply by 100:
[tex]\displaystyle \mathrm{Change} \% = \frac{123 }{ 612} * 100 \approx 0.2[/tex]
The percent change in enrollment at Main Middle School was about 20%
A scientist discovered a new type of bacteria that will grow at a rate of 3 cells every 2 seconds. If the scientist starts with one bacteria cell in a petri dish, what equation could predict the amount of cells in the dish after x seconds? Please help me
Answer:
1.5 x cells
Step-by-step explanation:
3 cells every 2 second
1.5 cells per second
therefore
after x seconds there ll be 1.5 *x number of cells
=1.5x cells
Missy bought her car for $27,000. Alice bought the exact same car for 7% less than Missy. How much less did Alice pay?
А.
$1890
В.
$8100
C
$18,900
D
$25,110
Answer:
A
Step-by-step explanation:
7%=0.07
27,000 MULTIPLIED by 0.07=1890
Alice paid: 25,110
Annabelle is ordering a taxi from an online taxi service. The taxi charges $2 just for the pickup and then an additional $1.50 per mile driven. How much would a taxi ride cost if Annabelle is riding for 6 miles? How much would a taxi ride cost that is mm miles long?
Answer:
$11Step-by-step explanation:
Step one:
given
Taxi charges =$2
Additional charges =$1.50 per mile driven
Step two:
Required
The cost of the ride for a 6miles long drive
let the number of miles be x
and the total charges be y
The cost function is expressed as
[tex]y=1.5x+2[/tex]------------1
hence for x=6
y=1.5(6)+2
y=9+2
y=11
Therefore the cost of a 6miles drive will be $11
If a/b= 8 and ac -5 = 11, then bc =?
Answer:
bc = 2
Step-by-step explanation:
From [tex]a/b = 8[/tex]
[tex]a=8b[/tex] (times b on both sides)
We can then substitute [tex]a[/tex] for [tex]8b[/tex]:
[tex]ac-5=11[/tex] (given equation)
[tex]8bc-5=11[/tex]
[tex]8bc=16[/tex]
[tex]bc=2[/tex]
I hope this helps :)
wayne recorded how much his pet snake,slithers, grew over the past few months. this list shows how much slithers grew each month?
Answer:
Where is the list?
Step-by-step explanation:
I have very little points left and yes i know sad right but im BEGGING for somebody to please help me. the questions are With the points A(-4, -2) B(1, -3) C(2, -6) D(-1, 7). What are the coordinated of A' if the scale factor of dilation is 3? **Express your answer as (#,#) with no spaces.** *
PLEASE HELP ME PLEASE PLEASE PLEASE!!
Answer:
so to scale (or dilate) it by three you would multiply each of the numbers in your point by three. In this case that means A' would be (-12,-6)
Step-by-step explanation:
hope this helps :)))
Evaluate 9/m + 4 when m=3
Answer:
7
Step-by-step explanation:
FIND THE QUADRATIC FUNCTION DETERMINED BY EACH TABLE
X -2 -1 0 1 2 3
Y 4 0 -2 -2 0 4
Answer:
x² - x - 2 = 0
Step-by-step explanation:
plotting the graph of x and y,we have that the root of the equation is -1 or 2
x = -1 or 2
the eqn therefore is;
x² - (sum of the root)x + (product of the root) =. 0
x² - (-1+2)x + (-1*2) = 0
x² - x - 2 = 0
Applying the Factor Theorem, it is found that the quadratic function is:
[tex]p(x) = x^2 - x - 2[/tex]
------------------------
The Factor Theorem states that if a polynomial [tex]p(x)[/tex] has roots [tex]x_1, x_2, ..., x_n[/tex], it is described by the following equation:
[tex]p(x) = a(x - x_1)(x - x_2)...(x - x_n)[/tex]
In which a is the leading coefficient.
For this quadratic function, the roots are [tex]x_1 = -1, x_2 = 2[/tex], as [tex]y(-1) = y(2) = 0[/tex], thus:[tex]p(x) = a(x - (-1))(x - 2)[/tex]
[tex]p(x) = a(x + 1)(x - 2)[/tex]
[tex]p(x) = a(x^2 - x - 2)[/tex]
When x = 0, p(x) = -2, and we use this to find a.
[tex]p(x) = a(x^2 - x - 2)[/tex]
[tex]-2 = a(0^2 - 0 - 2)[/tex]
[tex]2a = 2[/tex]
[tex]a = \frac{2}{2}[/tex]
[tex]a = 1[/tex]
Thus, the quadratic function is:
[tex]p(x) = x^2 - x - 2[/tex]
A similar problem is given at https://brainly.com/question/24380382
Christopher is making his sweet potato side dish for the potluck dinner. Sweet potatoes are on sale at the market for $0.67 per pound. Christopher needs 9.3 pounds of sweet potatoes. How much will he spend? Round to the nearest cent.
Answer:
6.2
Step-by-step explanation:
6.231 to the 10th
Answer:
He will spend about $6.23
Step-by-step explanation:
You just multiply 9.3 and .67 and get 6.231 rounded to 6.23
Help me plz with this question
Answer:
y= -6x+23
Step-by-step explanation:
perpendicular: opposite signs and reciprocal
m= 1/6 and y-intercept = 23
y= -6x+23
Ms Watson has 162 pencils. The ratio of the sharp pencils to dull pencils is 2:4 . How many dull pencils are there
Iliana signed up for a store credit card with no annual fee to get a discount of 12.5 percent off her entire first purchase.
Percents
Total
100%
If she saved $7.29 on her first purchase by using this credit card, what was the total price of the items before the discount?
$0.91
$1.71
$58.32
$91.13
Answer:
the answer is 58.32
Step-by-step explanation:
Victoria reads at a constant rate of 10 pages in 16 minutes. Use the ratio table to find out how long it would take him read 35 pages.
Answer:
to read 16pages need 46 minutes
HELP! BRAINLIEST ANSWER!
Answer:
6. 5x - 2
7. 13in
8. 3a + 20
9. 21 1/2
explanation:
6. add all of the values together
7. plug in 3 into the answer from #6 5(3) - 2 and you will get 13
8. add all values
9. plug in 1/2 into the answer from #8 3(1/2) + 20 and you will get 21 1/2
What is the missing reason in step 6
Answer:
What is step 6
Step-by-step explanation:
Which answer choice shows 34.498 rounded to the nearest half?
A. 34
B. 34.5
C. 35
D. 35.5
Answer:
34.5
Step-by-step explanation:
follow me say a thanks mark me branliest
symbolize is the use of a symbol to:
A(describe a character)
B(represent an abstract idea)
C(represent a concrete thing)
D(compare two different things)
Answer:
B(represent an abstract idea)
Step-by-step explanation:
A symbol is a stylistic figure whose essence is to use a word or phrase to refer to another, usually abstract term, to which it refers.
What symbolism means in every sphere is precisely the reference by one term to another term that symbolizes.
A symbol consists of a concrete material designation which refers to some abstract concept.
Answer:
b is correct give the person above brainlist :)
Step-by-step explanation:
Find the slope: y=23x+10
Answer: 23
Step-by-step explanation:
in the scatterplot there is a
Answer:
i dont see anything
Step-by-step explanation:
Answer:
you didnt add a pic
Step-by-step explanation:
9935÷2.76243 hello
Answer:
9935÷2.76243
3596.47122
round it to any place values your question or anythings asks for
Answer:
3596.4712228
Step-by-step explanation:
Sam went to the store because she needed 5 1/2 cups of flour for a recipe. She already had 2 1/3 cups at home. How much flour will she Need for the recipe?
Answer:
3 1/6
Step-by-step explanation:
5 1/2 = 5 3/6
-
2 1/3 = 2 2/6
_____
3 1/6
how do I answer this please help homework due tomorrow x
Answer:
63.6 m^2
Step-by-step explanation:
A = (pi)r^2
r = d/2 = 9 m / 2 = 4.5 m
A = (3.142)(4.5 m)^2
A = 63.6 m^2
what is the LCM of 80
so is the question right?
Answer:
Factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 80.
Step-by-step explanation:
Heidi's friends want to reserve a karaoke studio this weekend. It cost $30 to reserve a room, plus $5 per person for pizza, plus $2 per person for a soda. How many people can be in the group if the total cost is $65 please this is the last 2 questions I have
Answer:
5
Step-by-step explanation
2 + 5 is 7 which equals 1 person 7 x 5 = 35 which means their will be 5 people per group because 30 {room cost} plus 35 is 65
what do i mean?
2 + 5 IS 1 person and 2 plus 5 is 7 so the remaining money they have would be 35 because 65 minus 30 is 35 so i divid 35 by 7 which brings 5 people
Can someone help me with systems of equations, (graphically)
Answer:
Step-by-step explanation:
You would use -6 and 7 to start your line. With the equation “y=5/6x+7", you would put a dot on 7. Then you would use the 5/6 to start making your line. With fractions, it's always rise/run. Starting from 7, you go up 5 then over(right) 6 until you run out of room on the graph. Then you do the opposite, down 5 then back(left) 6. Then you should have your first line. Then repeat that for the next equation. Start at -6, go down 4 and back three until you run out of room on the graph, then do the opposite. Go up 4 and over 3.
Let me know if this is confusing!
Hi, I need help for part c, please!
Answer:
35 mph
Step-by-step explanation:
The answer should be the average speed it takes to drive, so you would find the average of the speed to go to A with the speed to go to B. You already have the two answers for part A and B, so you would add them, then divide them by 2. It would look like this:
[tex]\frac{30+40}{2} =\frac{70}{2} =35[/tex]
So it would be 35 mph
Do you like 5 stars. DO you Brainliest . Do you like Thankyou's .
Well help me and togethers we can make this come true
Answer the question
and Happy Thanksgiving
Answer:
S=3
Step-by-step explanation:
4(2(3)-3)=3((3)+1)
4(6-3)=3(4)
12=12
OR
8s-12=3s+3
5s-12=3
5s=15
s=3
Answer:s=3
Step-by-step explanation:
So the first thing that you do is the distributive property on both sides and then you combine like terms. After that you put the variable all on on side consonants. Then you divide and you get s.
Which values represent the answer in simplest form?
7/9 divided by 4/9
Answer:
math is torture
Step-by-step explanation:
5 5/12 + 1.75 in fraction form.
Write the fraction in simplest form.
43/6
-1/3a - 1/2b - 3/4 + 1/2b - 2/3 + 5/6a
Answer:
look at the pic i sent
Step-by-step explanation: