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kap26 [50]
3 years ago
12

Working as a team, 8 mathletes can solve 20 problems in 10 minutes. At this same rate, how many mathletes are needed in order to

solve 30 problems in 5 minutes?
Mathematics
1 answer:
pshichka [43]3 years ago
4 0

Answer:

12 mathletes is needed to solve 30 problems in 5 minutes

Step-by-step explanation:

8 athletes can solve 20 problems in 10 minutes

30-20=10

now we need 10 more problems to be solved so

20/2=10. 8/2=4 so we need more 4 mathletes to solve all the problems

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trasher [3.6K]

Answer:

Total area = 31.5 unit²

Step-by-step explanation:

Assume 1 block = 1 unit²

Divide diagram into 3 part

1. 5 by 5 block square

2. 2 by 2 block triangle(1)

2. 3 by 3 block triangle(2)

Area of square = side × side

Area of square = 5 × 5

Area of square = 25 unit²

Area of triangle(1) = [1/2][base][height]

Area of triangle(1) = [1/2][2][2]

Area of triangle(1) = 2 unit²

Area of triangle(2) = [1/2][base][height]

Area of triangle(2) = [1/2][3][3]

Area of triangle(2) = 4.5 unit²

Total area = Area of square + Area of triangle(1) +Area of triangle(2)

Total area = 25 unit² + 2 unit² + 4.5 unit²

Total area = 31.5 unit²

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3 years ago
Sal bought x shares of a stock that sold for 31.50 per share. He paid a 1% commission on the sale. The total cost of his investm
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Answer:

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Step-by-step explanation:

add 1% to 31.50 to get 31.815

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3 years ago
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Answer:

-2 < x - 1 < 0

Step-by-step explanation:

  • 2x - × - 1 = x -1

  1. -1 < x < 1

2. -2 < x - 1 < 0

7 0
3 years ago
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Answer:

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Step-by-step explanation:

The pyramid with the same overall dimensions will obviously have a smaller volume. The ratio is 1/3.

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The formula for the volume of a rectangular prism is ...

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The formula for the volume of a rectangular pyramid is ...

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The pyramid has 1/3 the volume of the prism.

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3 years ago
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