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MrRa [10]
3 years ago
14

Lashonda has scored 83, 72, 74, and 85 on her previous four tests. What score does she need on her next test so that her average

(mean) is 81?
Mathematics
1 answer:
Romashka [77]3 years ago
5 0

Answer:

91

Step-by-step explanation:

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chubhunter [2.5K]

Answer:

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Step-by-step explanation:

no se weydgfds

6 0
2 years ago
For any approximately normal distribution, how can we find the relative frequency of the scores?
Juliette [100K]
<span>We can, transform the raw scores to z-scores and use the standard normal curve to find the relative frequency of the scores.

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7 0
3 years ago
Help please look at the picture
zmey [24]

Answer:

n=3

m=2

Step-by-step explanation:

This done by factorizing thier powers.

7 0
3 years ago
Sixty people are invited to a party. There are 24 cups in a package and 18 napkins in a package. What is the least number of the
miv72 [106K]
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4 0
3 years ago
Perry borrows $350 at a simple interest rate of 4.5%. Perry pays back the loan in 30 months. How much interest does Perry pay on
Nitella [24]

Answer: the interest on the loan is $39.38

Step-by-step explanation:

The formula for determining simple interest is expressed as

I = PRT/100

Where

I represents interest paid on the loan.

P represents the principal or amount taken as loan

R represents interest rate

T represents the duration of the loan in years.

From the information given,

P = $350

R = 4.5%

There are 12 months in a year. Converting 30 months into years, it becomes

30/12 = 2.5. so

T = 2.5 years

Therefore

I = (350 × 4.5 × 2.5)/100

I = $39.38

3 0
3 years ago
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