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3 years ago

270 is 75% of what number?

1 answer:

5 0

First, you have to divide 270 by 3, so you get 25%. This comes out to be 90. So, 90 is 25%. Now, multiply this by four to get 100%. This comes out to be 360. So, 270 is 75% of 360, which answers the question '270 is 75% of what number?'

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Composite Figures Question 9.<br> A. 57 ft <br> B. 288 ft<br> C. 208 ft<br> D. 264 ft

Elden [556K]

Answer:

Step-by-step explanation:

find area of first rectangle

18 x 6 = 108

find area of second rectangle

20 x 5 = 100

find area of two triangles

7 x 8 =56

56/2 = 28

each triangle has an area of 28

28+28+100+108 = 264ft

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3 years ago

Nash ran how many miles in 5 weeks

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Answer:

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Step-by-step explanation:

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10. Find the mean, median of the following data.

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Answer:

Step-by-step explanation:

You find the mean by adding all the values then dividing that sum by the amount of values

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3 years ago

Read 2 more answers

HELP ILL GIVE A BRAINIEST

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Answer: The first one. 2 to the 20th power over 3 to the 8th power

Step-by-step explanation:

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2 years ago

The mean work week for engineers in start-up companies is claimed to be about 64 hours with a standard deviation of 8 hours. Kar

blondinia [14]

Answer:

1.) mean

2.) H0 : μ = 64

3.) 0.0028

4) Yes

Step-by-step explanation:

Null hypothesis ; H0 : μ = 64

Alternative hypothesis ; H1 : μ < 64

From the data Given :

70; 45; 55; 60; 65; 55; 55; 60; 50; 55

Using calculator :

Xbar = 57

Sample size, n = 10

Standard deviation, s = 7.14

Test statistic :

(xbar - μ) ÷ s/sqrt(n)

(57 - 64) ÷ 8 / sqrt(10)

Test statistic = - 2.77

Pvalue = (Z < - 2.77) = 0.0028 ( Z probability calculator)

α = 10% = 0.1

Reject H0 ; if P < α

Here,

P < α ; Hence, we reject the null

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3 years ago