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3 years ago

What could describe Anita’s race from minute 3 to minute 5?

Mathematics

2 answers:

amm18123 years ago

7 0

Answer:

b) She stopped to change a flat tire.

Step-by-step explanation:

I'm assuming the y-axis of the graph says distance.

Over time, Anita did not move at all which indicates that she stopped. There is nothing to do with speed in this question do you can take out answers a) and d). c) is pretty irrelevant because why would Anita continue riding her bike after if she already won. So the answer is b) She stopped to change a flat tire.

Hope this helped! :)

victus00 [196]3 years ago

6 0

She stopped to change a flat tire

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Solve each word problem using a system of equations. Use substitution or elimination.

nasty-shy [4]

Answer:

Step-by-step explanation:

x + 3y = 24.....multiply by -1

5x + 3y = 36

------------------

-x - 3y = -24 (result of multiplying by -1)

5x + 3y = 36

------------------add

4x = 12

x = 12/4

x = 3 <=======

x + 3y = 24

3 + 3y = 24

3y = 24 - 3

3y = 21

y = 21/3

y = 7 <========

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3 years ago

A screening test for a disease shows a positive result in 91% of all cases when the disease is actually present and in 7% of all

Jobisdone [24]

Answer:

0.0713 = 7.13% probability that the result is positive.

Step-by-step explanation:

Probability of a positive test:

91% of 1/650(has the disease).

7% of 1 - 1/650 = 649/650(does not have the disease). So

$p = 0.91\frac{1}{650} + 0.07\frac{649}{650} = \frac{0.91 + 0.07*649}{650} = 0.0713$

0.0713 = 7.13% probability that the result is positive.

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2 years ago

A video sharing website starts with 20,000 members. Each year it loses 25% of the members, but adds 10,000 new members after the

Paraphin [41]

Hello there!

So, as we see here, we can see that they start out with 20,000 members. 25% of 20,000 would be 5,000 members.

So, every year, they lose 25% which is 5,000 members of they team. But then they gain 10,000 more.

So, practically, they get 5,000 every year even though they get 25% off.

5,000 would be the answer.

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3 years ago

I need help with #13

Marizza181 [45]

40 ft of 60% (.6) = 24ft

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3 years ago

What is the value of x?

Ksenya-84 [330]

Answer:

Step-by-step explanation:

2x - 5 = x + 15

2x - x = 5 + 15

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2 years ago