Eric has 130 coins consisting of nickels and quarters the coins combined value comes to 15.90

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Mathematics

Guest

29 October, 09:43

Eric has 130 coins consisting of nickels and quarters the coins combined value comes to 15.90

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Answers (2)

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Danny Downs · Answer 1

Quarters = 47

Nickels = 83

Step-by-step explanation:

A) N + Q = 130

B).05N +.25Q = 15.90

Multiplying equation A by -.05 equals

A) -.05N -.05Q = - 6.50 then adding this to B)

B).05N +.25Q = 15.90 Equals

.20Q = 9.40

Quarters = 47

Nickels = 83

.05*83 +.25*47 = 4.15 + 11.75 = 15.90

Elf · Answer 2

A) N + Q = 130

B).05N +.25Q = 15.90

Multiplying equation A by -.05 equals

A) -.05N -.05Q = - 6.50 then adding this to B)

B).05N +.25Q = 15.90 Equals

.20Q = 9.40

Quarters = 47

Nickels = 83

.05*83 +.25*47 = 4.15 + 11.75 = 15.90