Answer:
<u>8 – 6</u> & <u>8 + (-6)</u>
Step-by-step explanation:
If you look at the 2 lines, one says -6 and the other says 8. So, now we know that the expression has to have '-6' and '8' in it. The only expressions with both numbers are the first two expressions.
8 – 6 and 8 + (-6)
Also, when you put these two expressions in the calculator, they both equal 2.
X=cost of one box of popcorn.
we can suggest this equation:
3x+1.75=9.25
3x=9.25-1.75
3x=7.5
x=7.5/3
x=2.5
Answer: the equation to find the cost of one box of popcorn is 3x+1.75=9.25, and the cost of one box of popcorn is $2.5.
Answer:
c = 31.5
Step-by-step explanation:
Given c varies directly as 
then the equation relating them is
c = k ← k is the constant of variation
To find k use the condition c = 14 when d = 64, then
14 = k ×
= 8k ( divide both sides by 8 )
1.75 = k
c = 1.75 ← equation of variation
When d = 324 , then
c = 1.75 × 
= 1.75 × 18 = 31.5
