They are saying today’s gasoline price at the local convent store may fluctuate 15% by the same time next year. If gas is selling for $3 per gallon, find the lowest and hightest gas may be next year
Mathematics · Middle School · Tue Nov 03 2020
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Given the statement:
They are saying today’s gasoline price at the local convent store may fluctuate 15% by the same time next year.
Determine the lowest and highest price that the gallon will change if the gas is selling for $3 per gallon.
Solution:
Take 15% of $3, add it to find the highest price, and subtract to find the lowest price. In order to get the percentage of a number, we must convert first the percentage to decimal, and multiply it with 3. In converting a percentage into decimal, divide the percentage by 100, hence in converting a decimal to percentage, multiply the percentage by 100.
= 15/100
=0.15
=(0.15)(3)
= 0.45
Highest price = $3.00 + $0.45
Highest price = $3.54
Lowest price = $3.00 - $0.45
Lowest price =$2.55
Final answer:
Highest price = $3.54
Lowest price =$2.55