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Anestetic [448]
2 years ago
15

Emilia takes 80 minutes to type 24 pages. Jamie takes 30 minutes to type 18 pages. If they work together, how long will it take

them to type a total of 108 pages? Answer in minutes.
Mathematics
1 answer:
Nata [24]2 years ago
7 0

Answer:

120 minutes

Step-by-step explanation:

Lets focus on Emilia.

<u>Emilia</u>

80 min -> 24 pages

1 min -> 0.3 pages

Now, Lets focus on Jamie.

<u>Jamie</u>

30 min -> 18 pages

1 min -> 0.6 pages

<u>Both of them</u>

1 min -> 0.3+0.6=0.9 pages

x min-> 108 pages

x=108/0.9 = 120

Thus, the answer is 120 minutes

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2 years ago
The surface areas of two similar hexagonal prisms are 882cm² and 1,058 cm²? What is the scale factor of the smaller
max2010maxim [7]

Answer:

scale factor of the smaller  prism to the larger prism is B. 21/23

Step-by-step explanation:

Given

surface areas of two similar hexagonal prisms are 882cm² and 1,058 cm²?

scale factor is ratio of sides of two similar objects

thus scale factor for given prism will be = side of smaller prism / side of larger prism

in general rule

If shape of solid has scale factor of k

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scale factor of volume = k³

_____________________________

Given in the problem area of two prism is given

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scale factor of area = k²

k^2 = area of smaller prism / area of larger prism

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Thus, correct option is B 21/23.

7 0
2 years ago
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