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IRINA_888 [86]
3 years ago
14

Please help :) i will really appreciate it

Mathematics
1 answer:
mihalych1998 [28]3 years ago
4 0

Answer:

Maybe the second or fourth? Im not sure, sorry!

Step-by-step explanation:

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A biker moves 2.5 times faster than a walker. They started moving simultaneously in the same direction from the same point. In t
saveliy_v [14]

Answer:

The speed of the biker is 15

Step-by-step explanation:

First, you call the speed of the walker x, and the speed of the biker 2.5x.

Then you know that speed times time equals distance, so you set up and equation. You do x times 2, which is 2x, and then 2.5x times 2, which is 5x. Then, since the distance between them is 18 miles, the equation would be 5x-2x=18. You would get 3x=18, and x is 6. So 6 is the speed of the walker, and 6 times 2.5 = 15, so the speed of the biker is 15.


5 0
3 years ago
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Your friend invested $500 in his shop to start off, and makes a $20 profit every week afterwards. Find the minimum number of wee
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It will take 45 weeks.25 weeks to gain back the 500 dollor he spent and 20 to make 400 dollor from it
5 0
3 years ago
A basketball player guesses her team will score 57 points during the game. The player's team actually scores 63 points.
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6 points i think that is the answer
4 0
3 years ago
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Rearrange the equation so u is the independent variable.<br><br> 4u+8w=-3u+2w4u+8w=−3u+2w
stiv31 [10]

Answer:

Step-by-step explanation:

4u + 8v = -3u + 2v

Solving 4u + 8v = -3u + 2v

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '3u' to each side of the equation. 4u + 3u + 8v = -3u + 3u + 2v

Combine like terms: 4u + 3u = 7u 7u + 8v = -3u + 3u + 2v

Combine like terms: -3u + 3u = 0 7u + 8v = 0 + 2v 7u + 8v = 2v

Add '-8v' to each side of the equation. 7u + 8v + -8v = 2v + -8v

Combine like terms: 8v + -8v = 0 7u + 0 = 2v + -8v 7u = 2v + -8v

Combine like terms: 2v + -8v = -6v 7u = -6v

Divide each side by '7'. u = -0.8571428571v

Simplifying u = -0.8571428571v

7 0
3 years ago
235+374= use rounding or compatible numbers to estimate the sum
vlada-n [284]
Round to tens: 240 + 370 = 610
round to hundreds: 200 + 400 = 600

hope this helps
7 0
3 years ago
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