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Tamiku [17]
3 years ago
9

What is the exam score for an exam whose z-score is 1.25?

Mathematics
1 answer:
mojhsa [17]3 years ago
4 0

Answer:

85

Step-by-step explanation:

A z-score of 1.25 means that the actual exam score is 1.25 standard deviations above the mean, and therefore the exam score we are looking for is: mean + 1.25 * SD = 75 + 1.25 * 8 = 85

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4/3 divided by 11/12 whats the answer
AveGali [126]

Answer:

16/11 is the answer to this.

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3 years ago
Joyce took out a small loan for $1,200. The interest on the loan was 10.5%, but she paid it off in just 18 months. How much did
jasenka [17]

Answer:

She paid back $192 in interest

Step-by-step explanation:

A = P(1+r)^n

P = $1,200

r = 10.5% = 0.105

n = 18 months = 18/12 = 1.5 years

A = 1,200(1+0.105)^1.5 = 1,200(1.105)^1.5 = 1,200×1.16 = 1,392

Amount = $1,392

Principal = $1,200

Interest = amount - principal = $1,392 - $1,200 = $192

7 0
4 years ago
GIVING BRAINLIEST AND 90 POINTS!!! PLEASE HELP
Arturiano [62]

Answer:

Part A: T stands for total money earned and S stands for money earned on Sunday

T = 11 + S


Part B: We know Larry walked AT LEAST twice the amount of dogs than Kyle. So, L standing for Larry and K for Kyle:

L = 2(K)

But, it tells us he walked twice, plus 4 more. So our final equation will be:

L = 2(K) + 4





4 0
3 years ago
Read 2 more answers
blanca buys 2 gallons of green paint. She uses 5 quarts to paint her front and 1/2 quart to paint the front porch swing
sukhopar [10]

Paint unused is 0.625 gallons.

<u>Step-by-step explanation:</u>

Quantity of green paint bought = 2 gallons

Now we have to convert gallons to quarts using the conversion factor

1 gallon = 4 quarts

2 gallons = 2 × 4 quarts = 8 quarts

Usage of paint her front = 5 quarts

Usage of paint the front porch swing = $\frac{1}{2} quart = 0.5 quart

So used paint = 5 + 0.5 = 5.5 quarts

To find the unused paint, we have to subtract the used quantity from already bought.

Unused paint = 8 quarts - (5.5 quarts) = 2.5 quarts.

So Unused green paint is 2.5 quarts or 0.625 gallons.

3 0
3 years ago
A bookstore packs six books in a box the total weight of the books is 14 1/4 pound each book has the same weight what is the wei
Charra [1.4K]
The weight of one book would be 2.375.
6 0
4 years ago
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