Answer:
is it 4.8, I don't really know
Fun
n=number of nickles
q=number of quarters
d=number of dimes
4 more dmes than nickles, 3 more quarters than dimes
d+4=n
q=3+d
total value is 455 cents
10d+5n+25q=455
divide both sides by 5 to simplify
2d+n+5q=91
now we convert all to one coin
q=3+d and n+4=d
subsitute 3+d for q and n+4 for d
2(n+4)+n+5(3+d)=91
2(n+4)+n+5(3+n+4)=91
2(n+4)+n+5(n+7)=91
2n+8+n+5n+35=91
8n+43=91
minus 43 both sides
8n=48
divide both sides by 8
n=6
sub back
n+4=d
6+4=d
10=d
q=3+d
q=3+10
q=13
6 nickles
10 dimes
13 quarters
Answer:
D, My original answer was A (-6,2) B (-6,5) but that's particular order is not an option but if you flip it you get answer D
Answer:
$3,360.
Step-by-step explanation:
To find the change all you need to do is multiply 11,200 by 0.3, and you get the answer of the change of the price now being $3,360 lower than it's original price, $11,200.
