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2 years ago

What is a a equivalent fraction of 20/0.64

Mathematics

2 answers:

DedPeter [7]2 years ago

7 0

Answer:

31.25

Step-by-step explanation:

BlackZzzverrR [31]2 years ago

6 0

Answer:

40/1.28

Step-by-step explanation:

Multiply the numerator and denominator by 2 to get an equivalent fraction

20/0.64 = 31.25

40/1.28 = 31.25

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1-9n - 10 - 2n? - 4n

MatroZZZ [7]

The answer would be -9 -15n because you would be adding one to the -10 to the one and -9 and plus -2 and plus negative for any equals 15n

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3 years ago

Please help and give me an explanation I don’t understand or know if it’s correct

andrezito [222]

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2 years ago

What is the measure of angle ABC in the circle shown in the picture?

Fynjy0 [20]

Answer:

45°

Step-by-step explanation:

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2 years ago

Based on information from Consumer Reports, a random sample of 35 thirty-gram cookies had a sample mean of 146 calories. The sta

Nonamiya [84]

Using the z-distribution, it is found that the 90% confidence interval for mean calories in a 30-gram serving of all chocolate chip cookies is (143, 149).

We are given the standard deviation for the population, which is why the z-distribution is used to solve this question.

The information given is:

Sample mean of $\overline{x} = 146$ .

Population standard deviation of $\sigma = 12$ .

Sample size of $n = 65$ .

The confidence interval is:

$\overline{x} \pm z\frac{\sigma}{\sqrt{n}}$

The critical value, using a z-distribution calculator, for a 95% confidence interval is z = 1.645, hence:

$\overline{x} - z\frac{\sigma}{\sqrt{n}} = 146 - 1.645\frac{12}{\sqrt{35}} = 143$

$\overline{x} + z\frac{\sigma}{\sqrt{n}} = 146 + 1.645\frac{12}{\sqrt{35}} = 149$

The 90% confidence interval for mean calories in a 30-gram serving of all chocolate chip cookies is (143, 149).

A similar problem is given at brainly.com/question/16807970

8 0

2 years ago

100 POINTS!!!!!!!!!!!!!!!!!

vesna_86 [32]

Answer:

A = 0.25*j + 1

Step-by-step explanation:

The question presented here is an application of linear models. The $1 amount is fixed and does not depend on any factor such as the cups of orange juice sold.

Furthermore, we are informed that we earn $0.25 for every cup of orange juice sold. This means that we shall earn 0.25 j by selling j cups of orange juice.

The variable total amount, A will thus depend on the fixed amount of $1 and the variable income 0.25 j.

The equation in two variables that will represent the total amount A (in dollars) you have after selling j cups of orange juice will thus be;

A = 0.25*j + 1

Hope this helped.....

3 0

2 years ago

Read 2 more answers