Question 793168
Do it this way
Let d = no. dimes
Let q = no. of quarters
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Write an equation for each statement
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"Jacob has $6.00 in dimes and quarters."
.10d + .25q = 6.00
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" He has ten more quarters than dimes."
q = d + 10
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In the first equation. replace q with (d+10)
.10d + .25(d+10) = 6
.10d + .25d + 2.5 = 6
.35d = 6 - 2.5
.35d = 3.5
d  = 3.5/.35
d = 10 dime
then obviously we have 10 more quarters or 20 quarters
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Find the total using these value: .10(10) + .25(20) = 
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This is a method you can use on all these type problems