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3 years ago

Please help me with this math problem!! NO LINKS PLEASE!! I will give brainliest!!

Mathematics

1 answer:

Natalka [10]3 years ago

4 0

Answer:

z = 7, x = 3, y = 20

Step-by-step explanation

3z + 5 = 26

3z = 21

z = 7

NP = NQ x 2

8x - 4 = 4x + 8

4x = 12

x = 3

y = pq/2

p = y; q = 10

10 x 2 = 20

y = 20

I hope this helps!

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Answer:

3 minutes and 30 seconds

Step-by-step explanation:

7-5 = 2

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1.5 times 3 (minutes) = 4.5 gallons emptied

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I hope this helps :)

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3 years ago

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AnnZ [28]

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3 years ago

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A stereo costs $320. in a sale it is reduced by 25% what is the sale price

Rudiy27

First, set up a proportion to find the reduction in price. 25/100=x/320. Cross multiply to get 8000=100x. Divide by 100 on both sides to get x=80. That's the reduction in price. Subtract from the total to find the new price 320-80=$240

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3 years ago

Consumer Reports scored cars on quality and cost. Spearman's rank correlation coefficient was calculated using Statdisk and the

melomori [17]

Answer:

d.There is insufficient evidence to conclude that the quality and price of a car are associated. There were ten cars used in the sample.

Step-by-step explanation:

Hello!

You have two variables X₁: quality score of a car and X₂: the price of a car.

It was analyzed id there is an association between the quality and the price.

The null hypothesis of a Spearman's rank correlation test is:

H₀: There is no association between the quality and the price of cars.

The researcher failed to reject the null hypothesis which means that there is no association between the variables of interest.

The sample size is listed in the output n= 10 consumer reports.

I hope you have a SUPER day!

8 0

3 years ago

Aliun [14]

Answer: 4,11

Step-by-step explanation:

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3 years ago