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Bogdan [553]
2 years ago
7

Represent 56÷ 8 = 7 using subtraction. Explain your reasoning.

Mathematics
1 answer:
jeyben [28]2 years ago
7 0

Answer:

56-8-8-8-8-8-8-8=0

Step-by-step explanation:

Probably just wants to show how many times you subtracted 8 until you got 0

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A bowl contains blueberries and strawberries. There are a total of 48 berries in the bowl. The ratio of blueberries to strawberr
Dvinal [7]

Answer:

a. 36 blueberries and 12 strawberries

b. 16 blueberries and 4 strawberries

Step-by-step explanation:

The computation of each berry in the bowl is shown below;

a. Total 48 berries

The Ratio of blueberries to strawberries is 9:3

So, the blueberries is = 48 × 9 ÷ (9  + 3) = 36

And, the strawberries is = 48 × 3 ÷ (9 + 3) = 12

b. Total 20 berries

The Ratio of blueberries to strawberries is 4:1

So, the blueberries is = 20 × 4 ÷ (4 + 1) = 16

And, the strawberries is = 20 × 1 ÷ (4 + 1) = 4

6 0
3 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.

4 0
3 years ago
HELP ME PLEASEEEEEEEEE
asambeis [7]

Answer:

perimeter is 34

area is 72

Step-by-step explanation:

side lengths are 8,8,9,9

add all 4 up to get perimeter of 34

area is 9x8 which is 72

8 0
3 years ago
Read 2 more answers
I sthe answer A? IM only half sure??
trasher [3.6K]
You are correct there is no pattern

5 0
3 years ago
Read 2 more answers
What’s the distance between points (5,6) and (9,9)
iragen [17]

Answer:

(4,3)

the distance between x1 and x2 then y1 then y2

6 0
3 years ago
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