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3 years ago

Will mark brainlist:)

Mathematics

2 answers:

ella [17]3 years ago

8 0

Answer:

The length of the missing side is 7 yards

Step-by-step explanation:

Simply subtract 9 from 16

16-9=7

The length of the missing side is 7 yards

Hope this helps! Plz award Brainliest : )

Andrew [12]3 years ago

8 0

The answer is 7yd.

I got this answer by simply looking at the line parallel to it, which would be 16yd. I subtracted 16yd - 9yd = 7yd.

Hope this helped!

Good luck <3

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How can you eliminate a fraction without using the least common denominator

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Clear the fraction When equations have a lot of fractions in them, the easiest way to solve them is to first clear all the fractions. In order to do this, you must multiply every term by the LCD (least common denominator).

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3 years ago

I can travel 250 miles in 90 minutes, how far can i get in 6 hours

german

90 minutes = 1.5 hours.

Divide total miles driven by the time to find how many miles are driven in 1 hour:

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3 years ago

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3 years ago

Read 2 more answers

Problem solving with inequalities

anzhelika [568]

Option D:

15c ≤ 200

Solution:

Let c be the number of cases of tea bags.

Cost of each tea bag = 15 gold coins

Total gold coins Mad have = 200

Set up an inequality:

Cost of c tea bags = 15 × c = 15c

Mad can buy tea bags at most 200 gold coins.

(At most 200 means 200 is the greater value)

15 × c ≤ 200

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4 years ago

The amount of time the husband and the wife spend on house work is measured for 15 women and their 15 husbands. For the wives th

dolphi86 [110]

Answer:

The value of the test statistic is z = -0.877.

Step-by-step explanation:

Testing the difference in mean time spent on housework between husbands and wives.

At the null hypothesis, we test if there is no difference, that is, the subtraction of the means is 0:

$H_0: \mu_H - \mu_W = 0$

At the alternate hypothesis, we test if there is a difference, that is, the subtraction of the means is different from 0.

$H_1: \mu_H - \mu_W \neq 0$

The test statistic is:

$z = \frac{X - \mu}{s}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, and s is the standard error.

0 is tested at the null hypothesis:

This means that $\mu = 0$

For the wives the mean was 7 hours/week and for the husbands the mean was 4.5 hours/week. The standard deviation of the differences in time spent on house work was 2.85.

This means that $X = 4.5 - 7 = -2.5, s = 2.85$

What is the value of the test statistic for testing the difference in mean time spent on housework between husbands and wives?

$z = \frac{X - \mu}{s}$

$z = \frac{-2.5 - 0}{2.85}$

$z = -0.877$

The value of the test statistic is z = -0.877.

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3 years ago