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Anarel [89]
2 years ago
10

PLEASE HELP ME FAST!

Mathematics
1 answer:
Bond [772]2 years ago
7 0

Answer:

She answered 16.2 of the questions correct.

Step-by-step explanation:

First you have to move the decimal point on the 90% 2 places to the left so it's 0.90 and then you multiply that by 18 to get 16.2.

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andreev551 [17]

Answer:

He ran one mile in 20 minutes

Step-by-step explanation:

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3 years ago
Petra jogs 5 miles in 40 minutes. At this rate, how long would it take her to jog 7 miles?
Wittaler [7]
(40 min)/(5 mi) = (time)/(7 mi) . . . . . the rates are the same
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At the same rate, it would take Petra 56 minutes to jog 7 miles.
6 0
3 years ago
Read 2 more answers
The volumes of two similar figures are given. The surface area of the larger figure is given. Find the surface area of the small
frez [133]

Answer:

surface area of the smaller figure ≈ 1474.64 m²

Step-by-step explanation:

The figures are similar base on the question . The surface area and the volume of the larger figure is given while only the figure of the smaller figure is given.

To find the surface area of the smaller figure we simply use the ratios. That is the scale factors.

Therefore, they are similar figure the scale factor  can be represented as a:b.

The scale factor for volume is cubed.

volume of larger figure/volume of the small figure = a³/b³

4536/2625 = a³/b³

a/b = 16.5535451/13.7946209

Note that for two similar solid with scale factor a:b the surface area ratio is a²: b² (the scale factor is square)

16.55²/13.79² = 2124/x

273.9025/190.1641 = 2124/x

cross multiply

273.9025x = 403908.54840

x = 403908.54840/273.9025

x = 1474.6435261

x ≈ 1474.64 m²

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3 years ago
If 5 fidgets cost $35, then how much would 2 fidgets cost?
AnnZ [28]
14$ i think and good luck on ur test
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2 years ago
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