Answer
50mph
Step-by-step explanation:
rt=d use the rate times time equals distance method.
it gives us the time=4, use an exponent to represent the rate(since that's the information we don't have equals 200km
x times 4 = 200km
4x = 200km
divide by 4 to leave the exponent by itself
x = 50km
Answer:
Unknown
Step-by-step explanation:
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Answer:
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Answer:
x = -1
Step-by-step explanation:
2x - 7 = 9x
Subtract 2x from both sides: -7 = 7x
Divide both sides by 7: -1 = x
Now plug in 7 for every value of x in the original equation to make sure you are correct:
2(-1) - 7 = 9(-1)
-2 - 7 = -9
-9 = -9
I hope this helps!
Answer:
D
Step-by-step explanation:
42 x 2 = 84
150 - 84 = 66
66/2 = 33