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sweet [91]
4 years ago
10

On the first test, the mean is 70, the standard deviation is 5, and your score is 80. on the second test, the mean is 70, the st

andard deviation is 15, and your score is 85. compared to other students, how well did you do on the two tests?
Mathematics
1 answer:
Mekhanik [1.2K]4 years ago
4 0

85+88+87+80+x all divided by 5= 82

340+x=410

410-340=70

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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
Minchanka [31]

Answer:

Step-by-step explanation:

2k+10   | Both terms share the common factor two, so you can take it out (divide both terms by 2)

2(k+5)  | Now if you use the Distributive Property to double check, you get 2k+ 10 again

4 0
3 years ago
Yo can yall help me need help to pass
kari74 [83]

Answer:

(3, 5)

Step-by-step explanation:

Point (3, -5) is 5 units below the x-axis.

After it is reflected, it will be 5 units above the x-axis.

Answer: (3, 5)

3 0
3 years ago
Read 2 more answers
What is the value of m in the equation below when j = 24 and n = 3? j = 2mn A. –2 B. 4 C. 6 D. 8
pochemuha

Answer:

B.4

Step-by-step explanation:

Plug in the numbers. it will be 24=2m(4) since u plug in 24 for j and 3 for n. 24=2m(3). This will be 24=6m. Divide by 6. m=4

3 0
3 years ago
Nancy plans to deposit $1,000 quarterly for 35 years at 8.25% Interest, compounded monthly. How much will she
melomori [17]

Answer:

$17,771.92

Step-by-step explanation:

A = P (1 + r/n)^nt

A = Future value (the answer you're trying to find)

P = Initial deposit ($1000)

R = Interest rate (8.25%; this will be represented as a decimal in the equation (.0825))

N = # of times interest is compounded per unit t (12)

T = Time (35)

35 * 12 = 420

1000 (1 + .0825/12)^420

1000(1.006875)^420

1000*17.77191635

A = $17,771.92 (rounded to the nearest hundredths)

4 0
3 years ago
Write 4.7 as a mixed number with a fraction in simplest form ​
andrezito [222]

Answer:

Convert the decimal number to a fraction by placing the decimal number over a power of ten. Since there is

1

number to the right of the decimal point, place the decimal number over

10

1

(

10

)

. Next, add the whole number to the left of the decimal.

4

7

10

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
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