The big jar of nickels and dimes contained $45. If 700 coins were in the jar, how many of each kind were there?

Question

Just need some help with this

Answer 1

n represents the number of nickels

700 - n represents the number of dimes

0.05n + 0.10(700 - n) = 45.00

Can you solve for n and answer?

Answer 2

a) X + y = 700. X = nickels, y = dimes b) X × y = 700 c) Subtract y from the right side and the left side of the equation d) X = 700 - y. e) Start with the original equation, again. Subtract X from the right side and the left side of the equation. f) y = 700 - X. g).05(700 -y) + ,10y = 45. h) 35 -.05y + .10y = 45. i) Subtract 35 from the left side and the right side of the equation. j) .05y = 10 k) Divide both sides of the equation by .05. l) y = 200 dimes m) X = 700 - y. n) X = 700 - 200 = 500 nickels. I hope this helps!