Answer:
-x+11
Step-by-step explanation:
am not sure if this is correct but
2x-3x=-x
-7+18=11
-x+11
Answer:
B
Step-by-step explanation:
peter makes 215
and veronica makes 235
Answer:
C
Step-by-step explanation:
7^-8 x 7^-4 = 7^(-8-4) = 7^(-12) = (1/7)^12 = 1/7^12
Answer:
Width = 25
Length = 58
Step-by-step explanation:
Let the width = w
Length = 2w + 8
2(w + 2w + 8) = 166 Combine terms in the brackets
2(3w + 8) = 166 Divide both sides by 2
(3w + 8) = 83 Subtract 8 from both sides
3w = 83 - 8
3w = 75 Divide by 3
w = 25
L = 2*25 + 8 Find the Length
L = 50 + 8 = 58
Answer:
y = 10*x
Step-by-step explanation:
y = kr --> 400
r = 4k
400 = k (4k) = 4k^2
k^2 = 400/4 = 100
k = sqrt(100) = 10
k = 10