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4 years ago

Do the ratios 14/7 and 2/1 form a proportion? Choose =Yes or No

1 answer:

8 0

The answer is yes. 14 can be expressed as 7 times 2. 2 can be expressed as 1 times 2.

you can also just simplify 14/7 by dividing both numbers by 7 to get 2/1.

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One of the smallest pools on the ship has about 45,000 gallons of water in it.

gtnhenbr [62]

Amount of water in the pool at the end of the day is 5457798.7 gallons

<u>Explanation:</u>

Given:

Initial amount of water in the pool = 45,000 gallons

Increase in amount = 0.75 in per minute

Time, t = 1 day

t = 24 X 60 min

t = 1440 min

So,

Increase in amount of water in 1 day = 0.75 in X 1440

= 1080 in

Volume of 1080 in of water = (1080 in)³

Volume from cubic inch to gallon = 5453298.7 gallon

Amount of water in the pool at the end of the day = 45000 + 5453298.7 gallon

= 5457798.7 gallon

5 0

3 years ago

A large manufacturing firm tests job applicants who recently graduated from college. The test scores are normally distributed wi

Sergeeva-Olga [200]

Answer:

The lowest score a college graduate must be 577.75 or greater to qualify for a responsible position and lie in the upper 6%.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 500

Standard Deviation, σ = 50

We are given that the distribution of test score is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.06.

P(X > x) = 6% = 0.06

$P( X > x) = P( z > \displaystyle\frac{x - 500}{50})=0.06$

$= 1 - P( z \leq \displaystyle\frac{x - 500}{50})=0.06$

$=P( z \leq \displaystyle\frac{x - 500}{50})=1-0.06=0.94$

Calculation the value from standard normal z table, we have,

$P(z < 1.555) = 0.94$

$\displaystyle\frac{x - 500}{50} = 1.555\\x = 577.75$

Hence, the lowest score a college graduate must be 577.75 or greater to qualify for a responsible position and lie in the upper 6%.

5 0

3 years ago

Can you please explain to me how I would solve this problem? Can you please explain/and show all the steps?

Lena [83]

22 = z + (-9) Switch the sides
z = 22 - (-9) Solve
z = 31 So, z = 31

7 0

3 years ago

Can anyone help solve this equation?

koban [17]

Answer:

Step-by-step explanation:

3 x 3 = 9

7 + 3 = 10

7 + ? = 3 + 7 + 3 + 7

7 + ? = 20

? = 13

3 0

4 years ago

Read 2 more answers

Question 1 answer this

Mademuasel [1]

Answer A and Answer D along with the ones you picked beforehand

8 0

3 years ago

Read 2 more answers