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Zielflug [23.3K]
2 years ago
12

A certain university recently calculated the number of days that its students took to complete their master's degrees. It took 1

00 of the students 800 days. In contrast, it took 150 of the students 600 days. What is the average number of days that these students took to complete their master's degrees? a) 620 days b) 680 days c) 700 days d) 720 days?
Mathematics
1 answer:
mixer [17]2 years ago
8 0

Answer:

c) 700

Step-by-step explanation:

Add 800 and 600, and then divide by the number of number, or in this case, two. This should give you 700.

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Select all the values that are equivalent to the given expression. Express your answer in scientific notation.
Anna35 [415]

Answer:

the first and last ones

Step-by-step explanation:

5 0
3 years ago
N minus 6 divided by 3 equals negative 4
igor_vitrenko [27]
N=-6
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3 years ago
The price of a microwave oven went up from $75 to $90; then went on sale for $57. What is the percent decrease from the original
Arisa [49]

Answer:

<u>The percent decrease of the microwave from the original price to the sale price is 24%</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Original price of a microwave = $ 75

Mark-up price of the microwave = $ 90

Sale price of the microwave = $ 57

2. What is the percent decrease from the original price to the sale price?

For answering this question we will use the Direct Rule of Three this way:

Price         Percentage

75                 100%

57                   x

75x = 57 * 100

75x = 5,700

x = 5,700/75

x = 76

76 = 100 - 24

<u>The percent decrease of the microwave from the original price to the sale price is 24%</u>

5 0
3 years ago
Read 2 more answers
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ArbitrLikvidat [17]

Answer:

4√ y

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5 0
3 years ago
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Solve for the value of y
skad [1K]

Answer:

y=8

Step-by-step explanation:

the sum of the three angles is 180

57 + 90 + 5y-7 = 180

5y + 140 = 180

5y = 40

y = 8

4 0
3 years ago
Read 2 more answers
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