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DedPeter [7]
3 years ago
11

Ron is training for a marathon. He runs at 50% of his original training speed on Monday, and at 4 miles per hour less than his o

riginal training speed on Tuesday.
If the sum of his running speeds of the two days is 17 miles per hour, what was his original training speed?
6.51
14
21
8.67
Mathematics
1 answer:
Sphinxa [80]3 years ago
7 0
I belive it is D 8.67 if not im so sorry D:
hopes this help you have a great day. :D
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Answer:

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Can someone please help me with this question?
liq [111]
To get the solution we are looking for we need to point out what we know.
1. We assume that 55 is 100% because its the output value of the task.
2. We assume that the x is the value we are looking for. 
3. If 100% = 55 so we can write it down as 100%=55 
4. We know that x% = 44 of the output value so we can write it as x%=44.
5. Now we have two simple equations: 1) 100%=55 2) x%=44 where left sides of both of them have the same units and both right sides have the same units so we can do something like that 100%/x%=55/44.
6. Now we just have to solve the simple equation and we will get the answer.
7. Solution for 44 is what percent of 55 100%/x%=55/44 (100/x)*x=(55/44)*x we multiply both sides of the equation by x 100= 1.25*x we divide both sides of the equation by (1.25) to get x 100/1.25=x 80=x now we have: 44 is 80% of 55! 

Quick answer = 44 is 80% of 55
Hope this helps! ;D
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What is 245,893 in scientific notation
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<span>The goal of writing a number in scientific notation is to have a decimal number, with one digit to theleft of the decmial point, followed by a × 10to some power.
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To format your number in this way, we'll divide the 245,893 by 10, 2time(s), making it a 2.45.
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