Richard works at an ice cream shop. Regular cones get two scoops of ice cream; large cones get three scoops. One hot Saturday, Richard scooped 234 regular cones and 156 large cones. One scoop of ice cream is 3 ounces. A tub of ice cream weighs 10 pounds. How many tubs of ice cream did Richard use to make the cones? Use the conversion 1 pound = 16 ounces.

17.55 tubs

Step-by-step explanation:

step 1

Find out the total scoops of ice cream in 234 regular cones and 156 large cones

step 2

Find out the weight of the total scoops

we know that

One scoop of ice cream is 3 ounces

so

step 3

Convert ounces to pounds

Remember that

1 pound = 16 ounces

so

To convert ounces to pounds divide by 16

step 4

Find out how many ice cream tubs Richard used to make the cones

we know that

A tub of ice cream weighs 10 pounds

Divide the total weight in pounds by 10

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

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so

step-by-step explanation:

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