#2) A 12-ounce bag of marbles contains 64 marbles. Assume the relationship between weight and number of marbles is proportional. How much would you expect a bag of 160 marbles to weight (in ounces)? *

Step-by-step explanation:

a 12 ounce bag = 64 marbles

So first you want to find out how much each marble weighs. To do this divide 12 ounces by 64.

1 marble =

To find the weight of 160 marbles, you just multiply the weight of 1 marble by 160.

160 marbles = × = 30 ounces.

one of each metals

step-by-step explanation:

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.