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Musya8 [376]
3 years ago
10

Solve d = rt for t when r = 75 mph and d = 450 mi

Mathematics
1 answer:
lord [1]3 years ago
6 0

Answer: t=6 hours

Step-by-step explanation:

For this problem, we are given the values for r and d. We can directly plug those values in and solve for t.

450=75t             [divide both sides by 75]

t=6 hours

Now, we know that there are t=6 hours.

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4 years ago
Find the solution of the system of equations.<br><br> x-y=-3<br>-8x+y=45
mezya [45]

Answer:

x = 17, y = 28

Step-by-step explanation:

1. Isolate for x in "x - y = -3, -8":

x - y+y = -3, -8+y

x = -11 + y

2. Substitute "x = -11 + y" in for x in the second expression:

-11 + y + y = 45

3. Simplify:

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4. Isolate y:

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y = 28

5. Substitute the new y-value into the first equation:

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5 0
2 years ago
4x−2y=14 y=12x−1 solve by substitution
Tatiana [17]

Answer:

x= -3/5

Step-by-step explanation:

4x-2y=14

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×= -12/20

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3 years ago
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expeople1 [14]
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3 years ago
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10.
Neko [114]

Answer:

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Step-by-step explanation:

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3 years ago
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