Matt started doing extra chores around the house and his allowance changed from $30 per week to $40 per week. What is the percen
t of change in Matt's allowance?
25% increase
20% increase
33.3% increase
10% increase
2 answers:
Answer:
33.3% increase
Step-by-step explanation:
Change: final- initial
= 40 - 30 = 10
%change
10/30 × 100
100/3 %
Approximately 33.33%
Answer:
33.3%
Step-by-step explanation:
Let's say the percent change is x%. Then the equation is:
30 + x% * 30 = 40
Subtract 30 from both sides:
x% * 30 = 10
Divide by 30:
x% = 10/30 = 1/3
Remember that % simply means "out of 100", so:
x/100 = 1/3
Multiply both sides by 100:
x = (1/3) * 100 = 33.3%
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