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1 answer:
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Answer:
Number of quarters → 15
Number of dimes → 2
Step-by-step explanation:
Let the number of dimes I have = y
And number of quarters = x
Since, I have amount in my pocket = $2
Therefore, 0.10y + 0.25x = 2
100(0.10y + 0.25x) = 100×2
25x + 10y = 200
5x + 2y = 40
2y = -5x + 40
y = -2.5x + 20 ---------(1)
Total number of coins in my pocket = 17
x + y = 17
y = -x + 17 ---------(2)
By using a graphing calculator we can graph these two lines (As attached)
Solution of the given system of equations will be the point of intersection of these lines.
Solution → (2, 15)
Number of quarters → 15
Number of dimes → 2
Answer:
---- in dollars
---- in cents
5 dollars 94 cents
Step-by-step explanation:
Given
Pears
per pound
Grapes
per pound
Required
Determine the amount paid for the fruit in dollar and cents
First, we need to calculate the amount paid for each fruit.
This is calculated by multiplying the amount per pound by the number of pounds bought.
For Pears:
Convert fraction to decimal
For Grapes
Convert fraction to decimal
Next, we add both amounts together to get the total amount spent in dollars.
Multiply by 100 to convert this amount to cents
And it can be represented as dollars and cents as:
5 dollars 94 cents