All categories

2 years ago

A class of 30 students has 12 girls. What is the ratio to boys?

Mathematics

2 answers:

miv72 [106K]2 years ago

6 0

I think 18?????????

dmitriy555 [2]2 years ago

4 0

If there's 30 students and we know there are 12 girls than you'd subtract 12 from 30 to find out how many boys are in the class.

30-12=18

So 12 girls:18 boys

Hope it helps!

You might be interested in

Multiple choice question?

nydimaria [60]

Answer:

9* 3 ^ (x-2)

Step-by-step explanation:

g(x) = 3^x

We know a^ (b) * a^(c) = a^ (b+c)

9* 3 ^ (x+2) = 3^2 * 3 ^(x+2) = 3^(2+x+2) = 3^x+4 not equal to 3^x

3*(9^(x+2)) = 3*3^2(x+2) = 3^1 * 3^(2x+4) =3^(2x+4+1) = 3^(2x+5) not equal

9* 3 ^ (x-2) = 3^2 * 3 ^(x-2) = 3^(2+x-2) = 3^x equal to 3^x

3*(9^(x-2)) = 3*3^2(x-2) = 3^1 * 3^(2x-4) =3^(2x-4+1) = 3^(2x-3) not equal

6 0

3 years ago

Read 2 more answers

A city manage must predict the population of the city between the years 2000

bezimeni [28]

Answer:

the answer to predict the city's population is 2050

7 0

2 years ago

Which is the simplified rational expression for 9x-5/4x-1 + (3x-8/4x-1 - 5x+3/4x-1) ?

Amanda [17]

Answer:

you answer is <u>7x - 16</u>

4x - 1

8 0

2 years ago

HELP PLEASE! FIND THE SURFACE AREA OF PYRAMID

Wittaler [7]

Answer:

136.73972

Step-by-step explanation:

A=lw+l(w

2)2+h2+w(l

2)2+h2=6·5.2+6·(5.2

2)2+92+5.2·(6

2)2+92≈136.73972

6 0

2 years ago

Read 2 more answers

the total charge for a yearly internet movie rental membership is $231.A registration fee of $15 is paid up front and the rest i

Flura [38]

New members pay a fee of $18 per month.

Step-by-step explanation:

Given,

Yearly movie rental cost = $231

Registration fee = $15

1 year = 12 months

Let,

x be the fee per month.

12x+15=231

$12x=231-15\\12x=216$

Dividing both sides by 12

$\frac{12x}{12}=\frac{216}{12}\\x=18$

New members pay a fee of $18 per month.

Keywords: subtraction, division

Learn more about division at:

#LearnwithBrainly

7 0

2 years ago