All categories

3 years ago

A high school graduating class is made up of 462 students. There are 132 more girls than boys. How many boys are in the class?

Mathematics

2 answers:

Nataliya [291]3 years ago

7 0

Answer:

165 boys

Step-by-step explanation:

we have:

462=a+b

a=girls

b=boys

a=132+b

462=132+b+b

462=132+2b

462-132=2b

b=165 = boys

kirza4 [7]3 years ago

6 0

Answer: There are 165 boys

$b = 165$

Step-by-step explanation:

Let's call b the number of boys and call g the number of girls in the class.

Then we know that:

There are 462 students. This means that:

$b + g = 462$

We also know that there are 132 more girls than boys, this means that:

$g = b + 132$

Now we substitute the second equation in the first and solve for b.

$b + (b + 132) = 462$

$2b = 462-132$

$2b = 330$

$b = \frac{330}{2}$

$b = 165$

You might be interested in

Find the area of a circle if the diameter is 13

horrorfan [7]

A=pi times radius times radius

13 divided by 2 equals to 6.5

A=3.14 times 6.5 times 6.5

A=132.665

hope it helps

Can you choose mine as the brainliest answer

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%20%7B%7D%5E%7B2%7D%20-%204%20%7D%7B%20%5Csqrt%7Bx%20%7B%7D%5E%7B2%7D%20-%206x%2

Nimfa-mama [501]

First of all, we can observe that

$x^2-6x+9 = (x-3)^2$

So the expression becomes

$\dfrac{x^2-4}{\sqrt{(x-3)^2}} = \dfrac{x^2-4}{|x-3|}$

This means that the expression is defined for every $x\neq 3$

Now, since the denominator is always positive (when it exists), the fraction can only be positive if the denominator is also positive: we must ask

$x^2-4 \geq 0 \iff x\leq -2 \lor x\geq 2$

Since we can't accept 3 as an answer, the actual solution set is

$(-\infty,-2] \cup [2,3) \cup (3,\infty)$

7 0

3 years ago

Preston has a car washing business. Last year he washed 20 cars a week. This year, he washed 1,200 cars. How many more cars did

marishachu [46]

Answer:

160 cars

Step-by-step explanation:

The computation of the number of more cars he washed this year is given below;

Last year, he washed 20 cars a week so on yearly basis he washed

= 20 cars × 52 weeks

= 1,040 cars

And, this year he washed 1,200 cars

So, the number of more cars he washed this year is

= 1,200 cars - 1,040 cars

= 160 cars

8 0

3 years ago

Please help i’ll give brainliest

Natalija [7]

Problem 1 Answer: x = 2/3y+8

Show Work:

Step 1: Add 2y to both sides.

3x−2y+2y=24+2y

3x=2y+24

Step 2: Divide both sides by 3.

3x/3 = 2y+24/3

x = 2/3y+8

Problem 2 Answer: x=−2y+48

Show Work:

Add -2y to both sides.

x+2y+−2y=48+−2y

x=−2y+48

8 0

3 years ago

What decimal is equivalent to 10/3?

fiasKO [112]

Answer:

3.33333333 . . .

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

A high school graduating class is made up of 462 students. There are 132 more girls than boys. How many boys are in the​ class?

A high school graduating class is made up of 462 students. There are 132 more girls than boys. How many boys are in the class?