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Grace [21]
3 years ago
15

On Saturday, Craig rode his bike 5/8 of a mile. On Sunday, he rode his bike 1/2 of a mile. Craig added 5/8 + 1/2 to find the tot

al distance, in miles, he rode his bike on the two days. Craig said 5/8 + 1/2 = 6/10 and plotted 6/10 on this number line.
* Explain why Craig's answer is not responsible.
* Find the total distance, in miles, Craig rode on his bike Saturday and Sunday.
* Explain how to use the number line to show your answer is correct.
Mathematics
1 answer:
saul85 [17]3 years ago
8 0
Hi there!

Craig's reason is not reasonable because when you add fractions you have to find equivalent fractions.

The total distance in miles would be 1 1/8 miles.

By using a number line, line up the fractions, so then you could add them both.

Hope this helps :)
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Sine rule

a/Sin(A) = b/Sin(B) = c/Sin(C)
     b
 C / |
a / _| A 
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We know that a = 70 degrees and A = 25 foot
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We also know we want C, and that c = 90 degrees
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Then you have to rearrange the equations. Start with Multiply all by Sin(C)
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Then divide everything by 70/Sin(25)
So Sin(C) = 90/[70/Sin(25)]
Now you want to isolate C, so Sin-1 everthing
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