I think the answer is B at 4.7
Lets try substitution5x+2y=21=5x=21-2y=x=(21-2y)/5
sub into second equation
-2(21-2y)/5+6y=-34(-42+4y)/5+6y=-34solve for yy=-64/17plug into equation and solve for x=(97/17)
Answer:
A)9/8
B) 9/17
Step-by-step explanation:
There are 17 total and 8 new so subtract 8 from 17 and u get 9. 17 total. 8 new. 9 used.
Answer:
$1.35 will be your answer
Step-by-step explanation:
18 x 0.075 = 1.35
