There are 16 girls and 20 boys in the school band. What is the ratio of girls to boys? Express the ratio as a fraction in simplest form.

4:5

Step-by-step explanation:

Since there are 16 girls and 20 boys, the ratio would be 16:20. Since you are wanting it in simplest form, you will divide until you can't divide any more. But what you do to the one side, you have to do to the other.

16/2=8

20/2=10

8/2=4

10/2=5

You can't divide anymore because 5 is odd. So the answer is 4:5

the forst and 3rd

step-by-step explanation:

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.