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3 years ago

Nine subtracted from twice a number

Mathematics

2 answers:

faust18 [17]3 years ago

6 0

That would be 2x - 9

lesya [120]3 years ago

5 0

Answer:

2x-9

Step-by-step explanation:

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13. Estimate how much money Jonah will make in an 8hr work day if he makes $7.59 per hour but 10% must go to taxes. Please show

olga nikolaevna [1]

Multiply 8 hours by $7.59.

8 * 7.59 = 60.72

Jonah makes $60.72 every day (excluding taxes).

Now multiply this by 10% (0.10).

60.72 * .10 = 6.072

Subtract 6.072 from 60.72.

60.72 - 6.072 = 54.648

Jonah makes $54.65 every day.

7 0

4 years ago

What is the surface area of the triangular prism shown?

Luba_88 [7]

Answer:

Step-by-step explanation:

we need to find the surface area of the shapes before adding them together. the triangles are 6*4 and since there are two, we do not need to divide by 2. (normally to find the area of a triangle it is base times height divided by 2)

so the area of the triangles are 24 units. Next we have the outer rectangles. 7*5=35. Since there are 2, we multiply by 2. Last we have the middle rectangle. 7*6=42.

the whole equation would be: 24+70+42= 136

so your answer would be B: 136.

hope this helps :)

4 0

3 years ago

It’s been found that 85% of American adults suffer from triskaidekaphobia (fear of the number 13). Researchers think this is too

uysha [10]

Answer:

Null Hypothesis, $H_0$ : p $\leq$ 85%

Alternate Hypothesis, $H_A$ : p > 85%

Step-by-step explanation:

We are given that it's been found that 85% of American adults suffer from triskaidekaphobia (fear of the number 13).

A USA Today/Gallup poll asked 1,006 randomly selected people 18 years old and older in telephone interviews "Suppose you checked into a hotel and were given a room on the thirteenth floor. Would this bother you or not?" 87% of the survey respondents answered they would be bothered.

Let p = proportion of respondents who would be bothered about given a room on the thirteenth floor

SO, Null Hypothesis, $H_0$ : p $\leq$ 85%

Alternate Hypothesis, $H_A$ : p > 85%

Here, null hypothesis states that the proportion of respondents who would be bothered about given a room on the thirteenth floor is less than or equal to 85%.

On the other hand, alternate hypothesis states that the proportion of respondents who would be bothered about given a room on the thirteenth floor is more than 85%.

Hence, this would be the correct null and alternative hypothesis.

6 0

3 years ago

Last year a winte coat cost $175. This year the price increased 15%. What is the new price

enot [183]

The new price is $201.25

3 0

3 years ago

Translate the following word phrase into an algebraic expression.

Rasek [7]

The algebraic expression is 6(x+2)

7 0

3 years ago