5:15 and x:3

a.5
b.3

c.1

5:15 = x:3

Cross multiply and solve for x.

I'll be glad to check your answer.

so what i multiply

Multiply:

5 * 3
15 * x

15x = 15

i don't get it

5 time 3 15
and 15?

so its 3

x = 15/15

x = 1

okay help me

Huh?? I told you the answer? What more do you want????

To find the value of x, we can set up a proportion using the given information:

The ratio of 5:15 is the same as the ratio of x:3.

This can be written as: 5/15 = x/3.

Now, we cross-multiply to solve for x:

(5 * 3) = (15 * x)

15 = 15x

Next, divide both sides of the equation by 15 to isolate x:

15/15 = x

1 = x

Therefore, the value of x is 1 (option c).