Four students spent $12 on school lunch. at this rate, find the amount 10 students would spend on the same school lunch.

$30

Step-by-step explanation:

if four students spent $12

then 10 students will spend how much..?

4=12

10=x ( u choose any letter for finding the

unknown quantity )

u cross multiplication, u get

4x=10*12

4/4x =120/4

then x = 30 .

so 10 students would spend $30.

hope it helped..

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !