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3 years ago

Help please? not sure about this

Mathematics

1 answer:

zimovet [89]3 years ago

8 0

9514 1404 393

Answer:

72 kph

Step-by-step explanation:

The first sentence tells you the speeds are proportional. So, you can write the proportion ...

kph/mph = 120/75 = x/45

Multiplying by 45 gives x:

x = (45)(120/75) = 72

72 kph is 45 mph.

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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Read 2 more answers

How do i rearrange f-ex=g-hx to get x?

Alborosie

Answer:

x = $\frac{g-f}{h-e}$

Step-by-step explanation:

Given

f - ex = g - hx

Collect the terms in x on the left side by adding hx to both sides

hx - ex + f = g ( subtract f from both sides )

hx - ex = g - f ← factor out x on the left side

x(h - e) = g - f ← divide both sides by (h - e)

x = $\frac{g-f}{h-e}$

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Rise over run: I counted 3 units up and then 2 times to the right which makes the slope 3/2.

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