Answer:
7/20 is left
Step-by-step explanation:
2/8 (reduced is 1/4) for food
1/5 for prizes
2/10 (reduced is 1/5) for decorations
? for what's left
Add all the fractions up by finding a common denominator.
1/4 + 1/5 + 1/5
5/20 + 4/20 +4/20 = 13/20
He spent 13/20 of his money on this stuff. What part of that is left?
1 - 13/20 (AKA 20/20 - 13/20)
= 7/20
Answer:
18 dollars
Step-by-step explanation:
Marginal cost can be defined as the additional cost to produce every additional unit of a certain good. In mathematical terms;
Marginal cost = change in cost / change in quantity
For seven jackets, we have to find the difference between the cost of seven jackets and the cost of six jackets as follows
$101 - $83 = $18
Since the change in quantity is one, our marginal cost comes to $18.
Answer:
C
You have to do it step by step
x•x-5x+6x-30
