3 years ago

Write a formula that converts weeks to days. d =

Mathematics

1 answer:

Stolb23 [73]3 years ago

7 0

Days= weeks × 7
d = w × 7

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Solve this problem. A number c decreased by 9 is less than or equal to 20. Find c.

Lady_Fox [76]

So c-9 is less than or equal to 20 so c is less than or equal to 29. So the correct answer is c. Hope this helps :)

5 0

3 years ago

What value of P makes the equation true 12-p+5=9<br> P=4<br> P=6<br> P=8<br> P=16

harkovskaia [24]

Answer:

p= 8

Step-by-step explanation:

just collect the like terms together

12+5-9= p

p= 8

7 0

2 years ago

A recent survey indicated that the average amount spent for breakfast by business managers was $9.33 with a standard deviation o

olasank [31]

Answer:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

Replacing the info given we got:

$t=\frac{9.41-9.33}{\frac{0.24}{\sqrt{81}}}=3$

Step-by-step explanation:

Information given

$\bar X=9.41$ represent the sample mean

$s=0.24$ represent the sample standard deviation

$n=81$ sample size

$\mu_o =9.33$ represent the value to verify

$\alpha=0.05$ represent the significance level

t would represent the statistic

$p_v$ represent the p value

Hypothesis to test

We want to test if the true mean is higher than 9.33, the system of hypothesis would be:

Null hypothesis: $\mu \leq 9.33$

Alternative hypothesis: $\mu > 9.33$

The statistic is given by:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

Replacing the info given we got:

$t=\frac{9.41-9.33}{\frac{0.24}{\sqrt{81}}}=3$

4 0

3 years ago

What is 9x2/4 it is fraction

gregori [183]

$\frac{9}{2}$ ....................

5 0

3 years ago

Idk how to solve these questions

Anuta_ua [19.1K]

Of means multiply

3/5 *n=30

3/5 5/3 cancels than you do 30 *5/3 =50

The answer is 50 you can check your answer by doing 3/5 *50=150/5 or 30 so it's correct .

5 0

3 years ago

Read 2 more answers