Answer:
The quantity of first nut = x = 2.4 lb
The quantity of second nut = 12.9 - x = 12.9 - 2.4 = 10.5 lb
Step-by-step explanation:
Let amount of first type of nut = x
Amount of second type of nut = 12.9 - x
Total Cost of first type of nut = 4.5 x
Total Cost of second type of nut = 8.8 × (12.9 - x)
Total cost of both type of nut = 8 × 12.9
Total cost = Cost of first type of nut + Cost of second type of nut
8 × 12.9 = 4.5 x + 8.8 × (12.9 - x)
103.2 = 4.5 x + 113.52 - 8.8 x
8.8 x - 4.5 x = 10.32
4.3 x = 10.32
x = 2.4
Therefore the quantity of first nut = x = 2.4 lb
The quantity of second nut = 12.9 - x = 12.9 - 2.4 = 10.5 lb
Answer:
t=100
Step-by-step explanation:
The easiest way is to graph them—otherwise, set each equation equal to each other:
.1x=.05x +5
Answer:
only 16
Step-by-step explanation:
18/2=9 not 8
12/2=6 not 8
16/2=8
20/2= 10 not 8
Answer:
A
Step-by-step explanation:
It's A because 7*12 is 84, and 5*7 is 35. B, C, and D, all have answers above 500 so logically A is the answer because it is closest to 7*12.
Answer:
a
Step-by-step explanation:bbbbbbb