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Romashka-Z-Leto [24]
2 years ago
13

The mean score on a physics test was 75 points. Amy’s score was 67 points, which was 2 standard deviations below the mean.

Mathematics
1 answer:
Marrrta [24]2 years ago
3 0

Answer:

16

Step-by-step explanation:

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Help me solve thank you will give 20 points
laila [671]

Answer:

Natalie bought 500 apples at $0.40 each, then she pays $0.40 500 times, this means that the total cost of the 500 apples is:

Cost = 500*$0.40 = $200

Now she threw away n apples from the 500 apples, then the number of apples that she has now is:

apples = 500 - n

And she sells the remaining apples for $0.70 each.

a) The amount that she gets by selling the apples is:

Revenue = (500 - n)*$0.70

b) We know that she did not make a loss, then the revenue must be larger than the cost, this means that:

cost ≤ revenue

$200 ≤ (500 - n)*$0.70

c) We need to solve the inequality for n.

$200 ≤ (500 - n)*$0.70

$200/$0.70 ≤ (500 - n)

285.7  ≤ 500 - n

n + 285.7 ≤ 500

n ≤ 500 - 285.7

n ≤ 214.3

Then the maximum value of n must be equal or smaller than 214.3

And n is a whole number, then we can conclude that the maximum number of rotten apples can be 214.

8 0
2 years ago
Can someone help me on this?
dezoksy [38]

Answer:

C

Step-by-step explanation:

divide 22.5 by 10

=2.5

so

f=2 1/2c

8 0
2 years ago
Melissa scored 120 points in each game how many points did she score in 10 games
Goshia [24]

Answer:

She scored 1200 in all ten games

5 0
2 years ago
Read 2 more answers
The temperature on Wednesday evening was -°5 Fahrenheit. The temperature decreased another 8° throughout the night. Wjat was the
____ [38]
The temperature on Thursday morning would be -13°F.

Since the temperature decreased throughout the night, this is a subtraction problem.

-5 - 8 = - 13
4 0
3 years ago
Write 59.5% as a decimal.<br> *<br> Your answer
Komok [63]

Answer:

0.0325

Step-by-step explanation:

3.25% = 3.25 over 100 or,

3.25%=3.25100

3.25 over 100 is the same as 3.25 divided by 100. Completing the division we get:

3.25 ÷ 100 = 0.0325

Therefore, we have shown that

3.25% = 0.0325

6 0
3 years ago
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