D = 8 - N
10D + 5N = 70 = 10(8-N) + 5N = 80 - 5N
80 - 5N = 70
-5N = -10
N = 2
******************
B = G+6
B + G = (G+6) + G = 28
Continue from there.
i have 8 coins in my pocket all are either nickles or dimes. they total 70 cents how many nickels and how many dimes do i have?
there are 28 members of the co-ed flag football team, this icludes 6 more boys than girls. how many boys and how many girls are there on the team.
1 answer
1 answer