Let Q represent Quarters N represent Nickels We know that Quarters worth 25 cents Nickels worths 5 cents If Chris has 2 times as many nickels as quarters means that N=2Q Next, They have a combined value of 210 cents, so 0.25Q+0.05N=210 Substitute N with 2Q 0.25Q+0.05(2Q)=210 0.25Q+0.10Q=210 0.35Q=210 Divided 0.35 to each side 0.35Q/0.35=210/0.35 Q=600 coins N=2Q N=2(600) N=1200 coins. As a result, Chris has 1200 nickels and 600 quarters. Hope it help!
