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mr Goodwill [35]
3 years ago
5

Find her number and explain

Mathematics
2 answers:
Andreas93 [3]3 years ago
8 0
It should be 11. hope this helps :)
german3 years ago
3 0

Answer: 11

Step-by-step explanation:

Just do it backwards. Add 5 to 17, and then divide that by 2.

17+5= 22

22/2=11

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PLS GIMME ANSWER OR IM FAILING THIS
Sholpan [36]

Answer:

2/7

Step-by-step explanation:

-1 1/7 + 6/7 = -8/7 + 6/7 = 2/7

6 0
3 years ago
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Explain answer !! <br><br> ( WILL GIVE BRAINLEST)
kicyunya [14]

Answer:

25-7

Step-by-step explanation:

"Substitute for": Replace x with ____

Since it is given that x = 25 -y, we can replace the x in 5x + y = 10 with 25 - y by the substitution property of equality.

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2 years ago
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What is 0.5333333333 as a fraction
Inga [223]
x=0.5\overline{3}\\&#10;10x=5.\overline{3}\\&#10;100x=53.\overline{3}\\&#10;100x-10x=53.\overline{3}-5.\overline{3}\\&#10;90x=48\\&#10;x=\dfrac{48}{90}=\dfrac{8}{15}
6 0
3 years ago
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Can anyone solve this?
Serhud [2]

Answer:

A) 96 cm

Step-by-step explanation:

Split into three parallelograms

Shape 1: 6 by 7     6×7=42

Shape 2: 3 by 4    3×4=12

Shape 3: 6 by 7    6×7=42

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6 0
2 years ago
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Brent is a researcher for a food company. He is on a team creating a reduced-calorie version of its flagship cracker. The team w
Andre45 [30]

Answer:

Step-by-step explanation:

Hello!

The research team created a cracker with fewer calories. The average content of calories of the new crackers per serving of 6 should be less than 60.

To test it a random sample of 26 samples of the new cracker was taken and the calories per serving were measured.

Then the study variable is

X: calories of a 6 serve sample of the new reduced-calorie version. (cal)

The variable has a normal distribution with a population standard deviation of 0.82 cal.

To test the claim that the new crackers have on average less than 60 calories, the parameter of interest is the population mean (μ) and the hypotheses are:

H₀: μ ≥ 60

H₁: μ < 60

α: 0.01

Since the variable has a normal distribution and the population variance is known, the best statistic to use to conduct the test is a Standard Normal

Z= \frac{(X[bar]-Mu)}{\frac{Sigma}{\sqrt{n}}  } ~N(0;1)

This test is one tailed to the left, wich means that the null hypothesis will be rejected at low levels of the statistic.

Z_{\alpha } = Z_{0.01} = -2.334

If Z ≤ -2.334, the decision is to reject the null hypothesis.

If Z > -2.334, the decision is to not reject the null hypothesis.

Using the data of the sample I've calculated the sample mean.

X[bar]= ∑X/n= 1548.61/26= 59.56 cal

Z_{H_0}= \frac{(59.56-60)}{\frac{0.82}{\sqrt{26} } } = -2.736

The observed Z value is less than the critical value, so the decision is to reject the null hypothesis.

At a level of significance of 1%, you can conclude that the population mean of calories of the samples of new crackers is less than 60 cal.

I hope it helps!

6 0
3 years ago
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