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ddd [48]
3 years ago
14

Solve for d: d + 9 = 15 show work please

Mathematics
2 answers:
oksian1 [2.3K]3 years ago
5 0

Answer:

6

Step-by-step explanation:

First, subtract 9 on both sides:

d+9-9=15-9

d=6

Hope this helped!

yKpoI14uk [10]3 years ago
4 0

Answer:

6 + 9 = 15

Step-by-step explanation:

d + 9 = 15, you take 15 and substract it by 9 so you can get 6

15 - 9 = 6

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Answer:

2

Step-by-step explanation:

F(3) means that we plug in 3 for the x value of the original equation, and F(4) means that we plug in 4 for the x value of the original equation

F(3) = -2(3) + 3

= -3

F(4) = -2(4) + 3

= -5

- 3 -(-5) = 2

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On May 23, 2013, Gallup reported that of the 1,005 people surveyed, 76% of U.S. workers believe that they will continue working
kumpel [21]

Answer:  0.76

Step-by-step explanation:

We know that the sample proportion is the best estimate of the population proportion.                                                                                      (1)

Given : Gallup reported that of the 1,005 people surveyed, 76% of U.S. workers believe that they will continue working past retirement age.

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Therefore, the estimated proportion of U.S. workers believe that they will continue working past retirement age from the sample =  \hat{p}=0.76

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3 years ago
On the way to the mall Miguel rides his skateboard to get to the bus stop. He then waits a few minutes for the bus to come, then
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The answer would be c .
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on the last 5 quizzes, marco has earned a total of 21 out of 25 possible points. if he has a perfect score on the next several q
nevsk [136]

Using the mean concept, it is found that we will need 15 more points to bring up his average up to 90%.

The mean of a data-set is the <u>sum of all observations divided by the number of observations</u>.

In this problem:

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  • In the next n observations, mean of 1.

Hence, the mean is:

M = \frac{0.84(5) + n}{5 + n} = \frac{4.2 + n}{5 + n}

We want the mean to be of 0.9, thus:

M = 0.9

\frac{4.2 + n}{5 + n} = 0.9

4.2 + n = 0.9n + 4.5

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n = \frac{0.3}{0.1}

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3 more testes are need, each worth 5 points, hence, 15 more points are needed to bring up his average up to 90%.

A similar problem is given at brainly.com/question/25323941

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