Mike bungee jumped from a building with eight stories. Each story was 15 4/5 feet in height. How tall was the building?

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Answer 1

Answer: 126 2/5 i multiplied them separately and added the two products together

Related Questions

190 miles every 4 days. How many miles he could bike in 6 days
Debbie cut a cord into sixths . She used five of the to make necklaces . She used equal lengths of the remaining cord for each of four bracelets. What fraction of the original cord did Debbie use for each bracelet ?
3 times the sum of the first and the third integer is equal to 30 more than 4 times the second integer
Please help with explanation
Can you express 9/9 as a mixed number

Solve for X

(X+b)/4=c

Answers

Answer:

x=4c-b

Step-by-step explanation:

(x+b)/4=c (multiply both sides by 4)

x+b=4c( subtract both sides by b)

x=4c-b

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Thank you for viewing my answer hope you get it.

A research firm wants to compute an interval estimate with 90% confidence for the mean time to complete an employment test. Assuming a population standard deviation of three hours, what is the required sample size if the error should be less than a half hour?

Answers

Answer:

n=97

Step-by-step explanation:

1) Notation and definitions

$\sigma=3$ population standard deviation known

Confidence=90% or 0.9

n sample size required (variable of interest)

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The sample mean have the following distribution

$\bar X \sim N(\mu, (\sigma)/(√(n)))$

2) Calculation for the sample size required

In order to find the critical value we need to take in count that we are finding the interval for the mean with the population deviation known, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by $\alpha=1-0.90=0.1$ and $\alpha/2 =0.05$ . And the critical value would be given by:

$z_(\alpha/2)=-1.64, t_(1-\alpha/2)=1.64$

The margin of error for the sample mean interval is given by this formula:

$ME=z_(\alpha/2)(\sigma)/(√(n))$ (a)

And on this case we have that $ME =\pm 0.5$ and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=((z_(\alpha/2) \sigma)/(ME))^2$ (b)

And replacing into equation (b) the values from part a we got:

$n=((1.64(3))/(0.5))^2 =96.83$

And rounded up we have that n=97

Solve picture question. Mathematics.

Answers

Cross multiplication!
$(7)/(8)$ = $(x)/(24)$
7 × 24 = 8x
168 = 8x

Divide both sides by 8 to isolate x

$(168)/(8)$ = $(8x)/(8)$
8 and 8 cancels out

21 = x

8*?=24? 8*3=24. So multiply 7 also by 3, and the answer is 21 :)

An equation is shown below:5(2x – 3) = 5

Part A: How many solutions does this equation have? (4 points)

Part B: What are the solutions to this equation? Show your work. (6 points)

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Asking the Math Gods...

x=2

A group of friends bought 6 movie tickets. They used a coupon for $2.00 off the cost of one of the tickets, and their total cost with the coupon was $50.50 . Write an equation that can be used to determine the regular cost c of each movie ticket.

Answers

Answer:38.5

Step-by-step explanation:

•Determine the regular cost of 1 movie ticket
Regular price without coupon
=$50.50+$2.00=$52.50
6 tickets=$52.50
1 ticket=C?
Using cross multiplication
C?=($52.50x1)/6=$8.75
So, the regular cost of each movie ticket is $8.75.

Equation: w = 112 + 8tChoose the ordered pair that is represented in the table.
(160, 6)
112+8(8)
(10, 192)
(5, 144)

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Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

i did and go it right

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