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Answer 1 · 2017-10-13T01:58:08

Seven US Dollars #($7)#.

Since

#"1 penny = $0.01"#

#"1 nickel = $0.05"#

#"1 dime = $0.10"#

#"1 quarter = $0.25"#

you have

#"15 pennies" = ($0.01xx15)= $0.15#

#"7 nickels" = ($0.05xx7)= $0.35#

#"15 dimes" = ($0.10xx15)= $1.50#

#"20 quarters" = ($0.25xx20)= $5#

Let's add our results next:

#$(0.15+0.35+1.50+5.00)= $7#

So #15# pennies, #15# dimes, #7# quarters, and #20# quarters is equivalent to #$7#.