Answer:
15°F
Step-by-step explanation:
It is given that,
Today's high temperature is 72°F and yesterday's high temperature was 87°F. We need to find the change in high temperatures.
Change in temperatures = final temperature - initial temperature
= 87°F - 72°F
= 15°F
It means that the change in temperature is 15°F. Hence, the correct option is (b).
Y + 4x = 8
y = 8 - 4x
substitute 8 - 4x for y in the other equation.
5x + 2(8 - 4x) = 13
5x + 16 - 8x = 13
-3x = -3
x = 1
y = 8 - 4(1) = 4
Direct Variation equation: y=kx, k=y/x
42/14=3
k=3
y=3x
y=3(90)
y=270
Answer:
the answer is -352..........