3 years ago

there are 480 students in a class. the ratio of boys to girls is 1:3. How many students are girls in the class?

Mathematics

1 answer:

vodka [1.7K]3 years ago

8 0

Answer:360

Step-by-step explanation:

3+1=4

480 divided by 4= 120

120x1=120 so there are 120 boys

120x3=360 so there are 360 girls

You might be interested in

What is the hypotenuse?

olga55 [171]

Answer:

he longest side of a right triangle, opposite the right angle.

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The ratio of girls to boys who participated in the quiz bowl was 7:5. There were 42 girls in the competition. How many boys part

Vlad1618 [11]

7*6=42 girls
5*6=30 boys
7:5=42:30
30 boys participated

4 0

3 years ago

Read 2 more answers

See attachment below

KatRina [158]

Answer: Third Option

$x=1.469743$

Step-by-step explanation:

We have the following exponential equation

$3^{x+1}=15$

We must solve the equation for the variable x

To clear the variable x apply the $log_3$ function on both sides of the equation

$log_3(3^{x+1})=log_3(15)$

Simplifying we get the following:

$x+1=log_3(15)$

To simplify the expression $log_3 (15)$ we apply the base change property

$log_b(y)=\frac{log(y)}{log(b)}$

This means that:

$log_3 (15)=\frac{log(15)}{log(3)}$

Then:

$x+1=\frac{log(15)}{log(3)}$

$x=\frac{log(15)}{log(3)}-1$

$x=1.469743$

6 0

3 years ago

If the area of the rectangle is 42 square units, what is the area of the shaded part?

MArishka [77]

lol you also in mcp

;adksfj;dkjaf;dkfjkdjaf;kdsjfaksdfj;askdj;fsadklfj;askdfjsakldj;fasdkljfaskldjfasdklf

4 0

3 years ago

Hewo there meh friends hero pwease ansan

AVprozaik [17]

So there’s no actual question because you didn’t attach anything

5 0

4 years ago

Read 2 more answers