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Answer:
k = 7
Step-by-step explanation:
given y varies jointly with x and w then the equation relating them is
y = kxw ← k is the constant of variation
to find k use the condition when y = - 42, x = 2 and w = - 3 , then
- 42 = k × 2 × - 3
- 42 = - 6k ( divide both sides by - 6 )
7 = k
constant of variation is k = 7
L=3W
2(3W+W)=32 feet
8W=32 feet
W=4 feet
L=3W
L=3* 4 feet
L=12 feet
The width is 4 feet, the length is 12 feet.
Answer:
x = 256
Step-by-step explanation:
-5/8x = -160
Multiply each side by -8/5 to isolate x
-8/5*-5/8x = -160*-8/5
x = 256
X = 180 - 58 - y
Y = 180- 126= 54
X= 180 - 58 - 54
X= 180- 112= 68 degrees
