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Gennadij [26K]
3 years ago
8

For every three girls taking classes at a martial arts school, there are 4 boys who are taking classes. If there are 236 boys ta

king classes, predict the number of girls taking classes at the school
Mathematics
1 answer:
Novosadov [1.4K]3 years ago
8 0

Answer:

177 girls

Step-by-step explanation:

We get 177 girls by multiplying 236 by 0.75. We do this because 236 divided by 4 is 59. 59 is what we would multiply 3 by. Alternitivly, we can multiply 236 by 0.75 because there would only be 3/4 of the total amount of girls.

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The sales tax rate is 8.25%. Estimate the sales tax<br> on a book that costs $18.50.
eimsori [14]

Answer:

$1.53

Step-by-step explanation:

Sales Tax Rate = 8.25%

Book Sales Cost = $18.50

Book Sales Tax = 8.25% x $18.50

= 8.25/100 x $18.50

= 0.0825 x $18.50

Book Sales Tax = $1.53

4 0
4 years ago
Read 2 more answers
Alan's dogs have a total of 24 legs (l). if each dog has 4 legs, which equation gives the number of dogs (
Slav-nsk [51]
4d = 24 would be the right equation. To double check you would divide both sides by 4 (the number of legs) to find the amount of dogs.
3 0
4 years ago
Please help this is for my son
Anuta_ua [19.1K]

Answer:

8 cookies left to be baked

Step-by-step explanation:

<u>Len</u>

Len bakes 1/3 of 30 cookies

To find 1/3 of 30, divide 30 by 3 then multiply by 1:

\implies \frac{30}{3} \times1=10 \times 1=10

Therefore, Len bakes 10 cookies

<u>Sallesh</u>

Sallesh bakes 2/5 of 30 cookies

To find 2/5 of 30, divide 30 by 5 then multiply by 2:

\implies \frac{30}{5} \times2=6 \times 2=12

Therefore, Sallesh  bakes 12 cookies

<u>Cookies left to bake</u>

To calculate how many cookies are left to bake, subtract the found number of cookies Len and Sallesh have baked from 30:

30 - 10 - 12 = 8

So there are 8 cookies left to be baked.

3 0
2 years ago
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charle [14.2K]

<u>Solution for question 5:</u>

f(x) = 4x - 8

To find f^-1(x) write it as an equation:

y = 4x - 8

Then take x to left and y to right;

x = 4y - 8

Then solve for y;

y = (x + 8)/4 = x/4 + 2

Your y is the inverse of f(x) = 4x - 8

f^-1(x) = x/4 + 2


8 0
3 years ago
1. If 40% of a number is 56, what was the original number?
Setler79 [48]

Answer:

140

I am not completely sure but what i did was

56/? = 40/100

56*100

5600/40

140

7 0
3 years ago
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