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Bad White [126]
3 years ago
15

Error Analysis: Mr. Hasson is buying a new bike for the summer time. The bike originally costs $150 but he sees it's on sale for

30% off. Mr. Hasson thinks that this means the price is $149.70 because 30% means 0.30 and 150 - 0.30 = $149.70.
What is the error that Mr. Hasson made?
What is the correct way to calculate the sale price?
Mathematics
1 answer:
evablogger [386]3 years ago
4 0

Answer:

$45

Step-by-step explanation:

30% ÷100 =0.3. 0.3×150= 45

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Answer:

87

Step-by-step explanation:

earning rate (R) = $5/hr

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3 0
3 years ago
A small airplane can fly 12 miles in 3 minutes. At this rate, how far can it fly in 7 minutes? In an hour?
Kay [80]

Answer:

28 miles in 7 minutes, 240 miles in an hour

Step-by-step explanation:

We can first simplify the rate to miles per minute. Since the plane goes 12 miles in 3 minutes, we can divide it by 3 to find how much it travels in one minute. 12 divided by 3 is 4 and 3 divided by 3 is 1

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7 0
3 years ago
Complete the equations below.
larisa [96]
88 tenths. In each case 8.8 is 88 tenths
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A sample of 14 joint specimens of a particular type gave a sample mean proportional limit stress of 8.48 MPa and a sample standa
Ksenya-84 [330]

Answer:

95% CI = ( 8.024 , 8.936 )

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So in the table,

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<em>**Assumptions:</em>

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