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kap26 [50]
2 years ago
7

Evaluate each expression x= 3, 4, 5. 1. 7x 2. 15-x 3. 60/x 4. x + 23

Mathematics
1 answer:
PilotLPTM [1.2K]2 years ago
6 0
1. 7*3=21, 7*4=28, 7*5=35

2. 15-3=12, 15-4=11, 15-5=10

3. 60/3=20, 60/4=15, 60/5=12

4. 3+23=26, 4+23=27, 5+23=28
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3000 exercise books are arranged into 3 piles. The first pile has 10 more books than the second pile. The number of books in the
pochemuha

Answer:

598 books

Step-by-step explanation:

Let x be the number of books in the 3rd pile. We will have then:

1st pile: 2x + 10

2nd pile: 2x

3rd pile: x

3000 = (2x + 10) + (2x) + (x)

3000 = 5x + 10

3000 - 10 = 5x

2990 = 5x

2990/5 = x

x = 598 books in the third pile!

We can check that:

3000 = 2*598 + 10 + 2*598 + 598

3000 = 1196 + 10 + 1196 + 598

3000 = 3000 CHECK!

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3 years ago
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yarga [219]
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3 0
3 years ago
A baker knows that the daily demand for mango pies is a random variable that follows the normal distribution with a mean of 45.4
jekas [21]

Answer:54.117

Step-by-step explanation:

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1-0.05=0.95

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4 0
3 years ago
Can someone answer question number 39. For me. This is for 7th grade summer math and I sadly just don't get it.
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8 0
3 years ago
Read 2 more answers
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Paladinen [302]

Answer:

Option C is correct

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:)

3 0
3 years ago
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