Mrs. smith runs a dessert parlor. their top selling items are waffles and milkshakes. she sells waffles for $5 each and milkshakes for $3 each. mrs. smith want to sell at least 60 waffles and milkshakes in all and wants to earn at least $210. if each waffle takes 7 minutes to make and each milkshake takes 3 minutes to make, how many waffles and milkshakes should she make to minimize the time spent making the two items?

ou would have 12 of each

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

[2, 2.5)

(2.5, 3]

step-by-step explanation:

i think its these two not sure [2, 2.5)

(2.5, 3]

on the middle line

step-by-step explanation:

1/5=50