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myrzilka [38]
3 years ago
7

1. Erwin hiked 5/7 of a kilometer while

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
4 0

Answer:

the number of kilometers hiked in all is \frac{29}{21}

Step-by-step explanation:

The computation of the number of kilometers hiked in all is shown below:

= Erwin + Jericho

= \frac{5}{7} + \frac{2}{3}\\\\= \frac{15 + 14}{21}   \\\\= \frac{29}{21}

Hence, the number of kilometers hiked in all is \frac{29}{21}

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Answer

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3 years ago
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victus00 [196]

Step-by-step explanation:

it is an isoceles triangle (equally long legs).

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3 years ago
Justin Verlander of the Astros threw a pitch 100 miles per hour. How many seconds did it take to get to home plate. The plate is
castortr0y [4]

It will take 0.4 seconds to get to the home plate.

Given:

The speed of the pitch thrown by Justin is 100 miles per hour

The distance of home plate from the pitching rubber is 60.5 feet

To find:

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Solution:

The distance home plate from the pitching rubber = d = 60.5 feet

1 mile = 5280 feet\\1 foot=\frac{1}{5280} mile\\60.5 feet=60.5 \times \frac{1}{5280} mile=\frac{60.5}{5280}miles

The speed of pitch thrown by Justin = s = 100 miles/hr

The time taken by a pitch to reach the home plate = t =?

The speed of the moving object is given by dividing the distance covered from the time taken to cover that distance.

Speed=\frac{Distance}{Time}\\s=\frac{d}{t}\\100 miles/hr=\frac{\frac{60.5}{5280}miles}{t}\\t=\frac{60.5}{5280}miles\times \frac{1}{100 miles/hr}\\= 0.000114583 hr

In an hour there are 3600 seconds, then in 0.000114583 hours will be:

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It will take 0.4 seconds to get to the home plate.

Learn more about conversions here:

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2 years ago
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Y_Kistochka [10]

Answer:

There are no like terms.

so its -7a+2b

Step-by-step explanation:

5 0
2 years ago
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I'm confused I put 13-x and it said incorrect?? HELP!
Andreas93 [3]

Answer:

Maybe -12?

Step-by-step explanation:

Because sometimes variables on their own symbolize 1, so we can subtract 13 from 1 to get -12.

5 0
2 years ago
Read 2 more answers
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