A boy has 11 coins in dimes and quarters. Their value is \$1.70. How many of each does he have? Which of the following equations could be used to solve the problem?
Translate the statements into equations. We can use 'x' for dimes and 'y' for quarters. "A boy has 11 coins in dimes and quarters" "Their value is \$1.70" To solve this, we can first solve for one of the variables in the first equation, and then plug that into the second equation: Subtract 'x' to both sides: Now plug this value of 'y' into the second equation: 0.10x + 0.25(11 - x) = 1.70 So this equation could be used to solve the problem.
Question
Updated 313 days ago|3/26/2022 1:30:04 PM
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Translate the statements into equations. We can use 'x' for dimes and 'y' for quarters.

"A boy has 11 coins in dimes and quarters"

"Their value is \$1.70"

To solve this, we can first solve for one of the variables in the first equation, and then plug that into the second equation:

Subtract 'x' to both sides:

Now plug this value of 'y' into the second equation:

0.10x + 0.25(11 - x) = 1.70

So this equation could be used to solve the problem.
Added 313 days ago|3/26/2022 1:30:04 PM

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