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3 years ago

Use multiplication to solve the proportion. h/15= 16/3

Mathematics

1 answer:

julia-pushkina [17]3 years ago

8 0

Answer:

h=80

Step-by-step explanation:

15/3=5 so 16*5=80

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PLS HURRY WILL MARK BRAINLIEST 3/7 + t = 20/21 t=?

Ipatiy [6.2K]

Answer:

t= 11/21

Im positive on the answer :)

7 0

3 years ago

Read 2 more answers

Based on historical data, your manager believes that 26% of the company's orders come from first-time customers. A random sample

scoundrel [369]

Answer:

$\hat p \sim N( p, \sqrt{\frac{p (1-p)}{n}})$

And we can use the z score formula given by:

$z = \frac{\hat p -\mu_p}{\sigma_p}$

And if we find the parameters we got:

$\mu_p = 0.26$

$\sigma_p = \sqrt{\frac{0.26(1-0.26)}{158}} = 0.0349$

And we can find the z score for the value of 0.4 and we got:

$z = \frac{0.4-0.26}{0.0349}= 4.0119$

And we can find this probability:

$P(z>4.0119) = 1-P(z$

And if we use the normal standard table or excel we got:

$P(z>4.0119) = 1-P(z$

Step-by-step explanation:

For this case we have the following info given:

$p = 0.26$ represent the proportion of the company's orders come from first-time customers

$n=158$ represent the sample size

And we want to find the following probability:

$p(\hat p >0.4)$

And we can use the normal approximation since we have the following two conditions:

1) np = 158*0.26 = 41.08>10

2) n(1-p) = 158*(1-0.26) = 116.92>10

And for this case the distribution for the sample proportion is given by:

$\hat p \sim N( p, \sqrt{\frac{p (1-p)}{n}})$

And we can use the z score formula given by:

$z = \frac{\hat p -\mu_p}{\sigma_p}$

And if we find the parameters we got:

$\mu_p = 0.26$

$\sigma_p = \sqrt{\frac{0.26(1-0.26)}{158}} = 0.0349$

And we can find the z score for the value of 0.4 and we got:

$z = \frac{0.4-0.26}{0.0349}= 4.0119$

And we can find this probability:

$P(z>4.0119) = 1-P(z$

And if we use the normal standard table or excel we got:

$P(z>4.0119) = 1-P(z$

8 0

3 years ago

6 is what percent of 8

mars1129 [50]

6/8 = 0.75
0.75 x 100 = 75%

3 0

4 years ago

Solve for x: 7(9 + x) = 84

yulyashka [42]

Answer:

my answer is 2 . 3 I think

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3 years ago

The widths of two similar rectangles are 25 ft. and 20 ft. What is the ratio of the perimeters?

dlinn [17]

All linear dimensions of similar figures are in the same ratio.
The perimeters are also in the ratio of 5 to 4.

5 0

3 years ago