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Klio2033 [76]
2 years ago
8

It takes Adara 3 hours to drive from Ashdown to Bridgeton at an average speed of 60 mph.

Mathematics
1 answer:
Scrat [10]2 years ago
8 0

Answer:

61.2 mph

Step-by-step explanation:

Let's first calculate the individual legs of Adara's trip in terms of both time and distance:

<u>Ashdown to Bridgeton</u>

3 hr at 60 mph = 180 miles in 3 hours

<u>Bridgeton to Carton</u>

30 miles at 70 mph:  30 miles/(70 miles/hour) = 0.429 hours

<u>Total Trip</u>

Miles = 180 + 30 = 210 miles

Time = 3 + 0.429 = 3.429 hours

Average speed is (210 miles)/(3.429 hours) = 61.25 or 61.2 miles/hour to 1 decimal point.

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Alex17521 [72]

We first find out the amount in dollars of interest accrued after 2 years  time.

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3 years ago
X has a normal distribution with the given mean and standard deviation. Find the indicated probability. (Round your answer to fo
lapo4ka [179]

Answer:

0.6247

Step-by-step explanation:

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From the question,

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Step 1

Find the Probability of X ≤ 36

μ = 51, σ = 10

Z = (X - μ)/σ

Z = 36 - 51/ 10

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We find the Probability of Z = -1.5 from Z-Table

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Step 2

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P(X < 56) = P(X = 56) = P(Z = 0.5)= 0.69146

Step 3

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P(36 ≤ X ≤ 56) = P(X ≤ 56) - P(X ≤ 36)

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7 0
3 years ago
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