Aaron the car wash owner had 228 quarters and 120 dimes.
An equation is an expression used to show the relationship between two or more variables and numbers.
Let x represent the number of quarters and y represent the number of dimes. Hence:
x = 90% of y + y
x = (0.9y) + y
x - 1.9y = 0 (1)
Also:
0.25x + 0.1y = 69 (2)
From both equations:
x = 228, y = 120
Find out more on Equation at: brainly.com/question/13763238
Answer:
A
Step-by-step explanation:
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mark brainliest!!
Easy 60×2=120 but another way you can find out is 120÷60=2