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quester [9]
4 years ago
10

Given the following test scores: 75, 83, 92, 56, 87, 78, 95, 85, 79, 88..... What is the mean? What percentage of the values fal

l within +/- 10 of the mean?
Mathematics
1 answer:
qwelly [4]4 years ago
4 0
The mean of the scores on the test is 81.8. the percentage of the amount of people that came within 10 of the mean is 60% 
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When writing an expression or equation to represent a real-world situation, why is it important to be able to describe what each
swat32

Answer:

If you know what each part of the expression or equations represents, it means that you understand the equation. You can solve the problem and know what you are doing.

I hope this helps! I'm sorry if it doesn't.

7 0
3 years ago
Angle dfg and angle fkl are complementary angles, m angle dfg= x+4, and m anlge jkl = x+10 . Find the measure of each angle
BARSIC [14]

Answer:

42° and 48°

Step-by-step explanation:

Complementary angles sum to 90°, hence

x + 10 + x + 4 = 90

2x + 14 = 90 ( subtract 14 from both sides )

2x = 76 ( divide both sides by 2 )

x = 38

x + 10 = 38 + 10 = 48° and x + 4 = 38 + 4 = 42°


4 0
4 years ago
F(t)=3t^2+3t, Find f(7)
Sauron [17]
F(7)=3(7)^2+3(7)

3(7)^2+3(7)=168
5 0
3 years ago
Read 2 more answers
Solve l=14j+3k for j.
Ganezh [65]
L = 14j + 3k
l - 3k = 14j
(l - 3k) / 14 = j
j = (l - 3k) / 14 (Flipped sides for aesthetics. I like having the thing I solve for on left, but that is completely optional)
3 0
4 years ago
The probability of getting a 4- bedroom home with a open porch based off the table.
AleksandrR [38]
All you have to do is multiply 1/3 (the chance of getting a 4 bedroom home) times 1/2 (the chance of getting an open porch). The answer is a 1/6 chance, as you don’t have to do anything with the kitchens because the question doesn’t specify to.

Hope this helps!
4 0
3 years ago
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