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iren2701 [21]
3 years ago
8

Terry’s average driving speed for a 2 and a half hour trip was 58 mph. How far did Terry travel?

Mathematics
2 answers:
beks73 [17]3 years ago
8 0
Is it is multiplication it is 116 in division 29
Nikitich [7]3 years ago
4 0

145 miles. lets see how i got this.

so first i took the 2.5 hour trip and the average speed, which was 58 mph (or 93.3 kph), and multiplied them together, because of the rule of d=rt.

sidenote: also if you want to find the speed, use r=d/t. also, for finding the time, use the t=d/r rule.

side-sidenote: i hope this answers your question and helps you in the future.

key: r= rate (mph or kph), d=distance, and t=time.

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An automatic car wash takes exactly 5 minutes to wash a car. On average, 10 cars per hour arrive at the car wash. Suppose that,
77julia77 [94]

Answer:

0.9595724

Step-by-step explanation:

Time taken to wash a car (μ) = 5 minutes

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If 5 cars arrive, 30 minutes to closing ; it takes 25 minutes to finish up ;

If 1 more car arrives, then it takes exactly 30 minutes

Hence, there will be no one in line at closing ;

IF 0 or 1 car arrives, if more than 1 car arrives, then there will be people in line at closing.

Hence, probability of waiting in line at closing :

1 - [p(0) + p(1)]

Using poisson :

P(x) = [(e^-μ) * (μ^x)] / x!

If x = 0

P(0) = [(e^-5) * (5^0)] / 0!

P(0) = (0.0067379 * 1) / 1

P(0) = 0.0067379

X = 1

P(1) = [(e^-5) * (5^1)] / 1!

P(0) = (0.0067379 * 5) / 1

P(0) = 0.0336897

Hence,

1 - (0.0067379 + 0.0336897)

1 - 0.0404276

= 0.9595724

Hence, the probability that anyone would be in the car washing line after closing is 0.9595724

4 0
2 years ago
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The following equation is being multiplied by the LCD. Complete the multiplication to eliminate the denominators
frosja888 [35]

Answer:

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We multiply each term by LCD

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(x+2)(x-2) -1(3x)=(x-3)(x-2)

4 0
3 years ago
Read 2 more answers
Which expression is equivalent to 4 (2x + 1) - (-6x)?
vlabodo [156]
<span>4 (2x + 1) - (-6x)
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answer

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