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Alina [70]
3 years ago
15

Please ESTIMATE what is 130% of 20!!!! I already know that it is exactly 26. Though I need to know how you can go upon ESTIMATIN

G IT
Mathematics
2 answers:
VikaD [51]3 years ago
5 0
100% of 20 is 20. Now we have 30% to add to it.

We know 25% of 20 is 5 since 20/4 = 5.. Since 25% is close to 30% this is a close estimate.

We get 25 this way
almond37 [142]3 years ago
3 0
130% is pretty close to 150%, which means "the whole thing, plus another half."

If we wanted to find 150% of 20, we just take the whole thing (20) and add another half (10), getting a slight overestimation of 20 + 10 = 30. Compare this to the actual answer, 26, and you see that we're only about 4 off.

Edit: The 125% estimate is actually a lot closer than mine, so I'd go with that!
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a.

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So, with t = 0, d = -2t + 10

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So, Lauren was 10 miles away from her house when he started.

b.

Lauren was moving at a rate of -2 mph towards her house.

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Lauren is 2 miles away from her house after 4 hours

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