Answer:
L=10cm , W=30cm
Step-by-step explanation:
First use the given that W=10+2*L
Use P=2W+2L=80, substitute W in the perimeter formula
2(10+2L)+2L=80 and solve for L,
20+4L+2L=80 isolate variable L and combine like terms,
6L=80-20,
L=10, so W=10+2*10=10+20=30
Answer:
a-4000
Step-by-step explanation:
hope this helps if wrong plz tell me if right plz consider brainliest
Answer:
Associative Property
Step-by-step explanation:
The associative property lets us change the grouping, or move grouping symbols (parentheses).
Answer:
(-3,2)
Step-by-step explanation:
Eliminate the equal sides of each equation and combine
5x + 17 = -2x - 4
Solve
x = -3
Evaluate y when x = −
3
.
y = 2
(-3,2)
<em>hope this helps :)</em>
