Answer:
84.5
Step-by-step explanation:
X+y=51
x-y=29
add equations
x+y=51
<u>x-y=29 +</u>
2x+0y=80
2x=80
divide 2
x=40
sub
x+y=51
40+y=51
y=11
they are 40 and 11
Answer:
4x + 16 - simplified
Step-by-step explanation:
So first you would have to add $25+$13.50=38.5 then subtract 38.5-2.68=35.82
Answer:
im gonna assume they are negatives, if not you can just re-word it.
Step-by-step explanation:
a lake being drained by -20 gallons per hour
a paper airplane falling at -10 feet per minute
an intense workout burning -.1 kilograms per minute
