All categories

3 years ago

PLEASE HELP, 46 PTS!!!! ANSWER QUICKLY AND WITH FULL REPONCE AND SHOW UR WORK!!

1 answer:

kramer3 years ago

5 0

Please limit your posts to one or two problems each. Your demands ("show work," "answer quickly," "give a full response") should apply to YOU, not to people whom you hope will do your work for you.

<span>2. A pool company is trying out several new drains. Drain A empties a pool at a rate of 2 gal/min. Drain B empties a pool at a rate of 5 gal/min. One pool has 108 gal of water in it. Write an equation for each drain that shows the amount of time it takes to empty the pool. Then solve each equation showing your work.</span>

Drain A: rate is 2 gal/min. We do not know which pool has 108 gallons of water in it. If it's Pool A, then the time required to empty Pool A is

108 gallons
------------------- = 54 minutes
2 gallons/min

If it's Pool B, then we can represent the amount of water in Pool B by b. Then the time required to empty Pool B is

b (gallons)
------------------ = (b/5) minutes
5 gallons/min

You might be interested in

HELP!!!!! What is the length plz help me besties

Nesterboy [21]

Answer: 30 inches

Step-by-step explanation:

20/8 = x/12

20(12) = 8x

240 = 8x = 30

8 0

3 years ago

A fish story: The mean length of one-year-old spotted flounder, in millimeters, is 127 with standard deviation of 22, and the me

pishuonlain [190]

Answer:

The z-score for this length is of 1.27.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

One-year-old flounder:

Mean of 127 with standard deviation of 22, which means that $\mu = 127, \sigma = 22$

Anna caught a one-year-old flounder that was 155 millimeters in length. What is the z-score for this length

This is Z when X = 155. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{155 - 127}{22}$

$Z = 1.27$

The z-score for this length is of 1.27.

4 0

3 years ago

Please can you help me with this problem. Thanks.

avanturin [10]

Hey! since it’s a 5 sided shape it’s area will be 540° so you add up 108+100+90+120=418
the final angle is 122*
then since angles on a straight line is 180° you minus 122 from 180 and x= 58°

6 0

3 years ago

What is the Equation of the line? slope: undefined; (7,-9)

Butoxors [25]

Answer:

x = 7

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

A certain corporation listed their sales in 100 as 1700. What was their actual volume in thousands?

densk [106]

as I read this one, they listed their sales as 1700, BUT the scale for those numbers are that each 1 is a "100", namely, they're on a 1:100 scale, so the 1700 is really 1700 * 100, or 170000.

170,000 is 170 * 1000, or 170 thousands.

6 0

3 years ago