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2 years ago

Are the fractions equivalent?

Mathematics

2 answers:

kotykmax [81]2 years ago

5 0

Answer:

7. no

8. yes

9. yes

10. no

Step-by-step explanation:

dangina [55]2 years ago

4 0

Answer:

7. no

8.yes

9.yes

10.no

I hope this helps!

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If 12 key chains cost $35.35, what is the cost of 20 key chains

alina1380 [7]

Answer:

The key chain's are 0.75 each

Step-by-step explanation:

3 0

2 years ago

Which values of a, b, and c represent the answer in simplest form?<br><br> 7/9 * 4/9 = a b/c

myrzilka [38]

Answer:

Option 2: A=1, B=3, C=4

Step-by-step explanation:

7/9÷4/9 = 7/9*9/4
cancel 9 on each side
=7/4
= 1 3/4

4 0

3 years ago

Mario has 3.875 liters of juice at the beginning of the day he drinks 2.79 liters during the day how much juice is left over st

katen-ka-za [31]

Answer:

The juice left at the end of the day is 1.085 liters.

Step-by-step explanation:

Juice at the beginning of the day: 3.875 liters

Juice drink by Mario during the day: 2.79 liters

Juice left at the end of the day = Juice at the beginning of the day - Juice drink by Mario during the day

= 3.875 - 2.79

= 1.085 liters

7 0

3 years ago

Read 2 more answers

In VWX x=41 cm v=17 cm and W=134 degrees. Find the length of w, the the nearest centimeter

pav-90 [236]

Answer:

Step-by-step explanation:

delta math.

yea....................

6 0

3 years ago

A survey of 35 people was conducted to compare their self-reported height to their actual height. The difference between reporte

Over [174]

Answer:

The test statistic is t = 3.36.

Step-by-step explanation:

You're testing the claim that the mean difference is greater than 0.7.

At the null hypothesis, we test if the mean difference is of 0.7 or less, that is:

$H_0: \mu \leq 0.7$

At the alternate hypothesis, we test if the mean difference is greater than 0.7, that is:

$H_1: \mu > 0.7$

The test statistic is:

$t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}$

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

0.7 is tested at the null hypothesis:

This means that $\mu = 0.7$

A survey of 35 people was conducted to compare their self-reported height to their actual height.

This means that $n = 35$

From the sample, the mean difference was 0.95, with a standard deviation of 0.44.

This means that $X = 0.95, s = 0.44$

Calculate the test statistic

$t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{0.95 - 0.7}{\frac{0.44}{\sqrt{35}}}$

$t = 3.36$

The test statistic is t = 3.36.

3 0

3 years ago