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Gennadij [26K]
3 years ago
6

Please explain . solve the system by elimi ation -x-18y=-3 7x-9y=21

Mathematics
1 answer:
Triss [41]3 years ago
5 0
This is the answer to the question

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3 years ago
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4 0
4 years ago
jayln rode her bike in a bike a thon she rode 33.48 miles in 2.7 hours if she rodeat the same speed what is her speed in mph
kari74 [83]

Answer:

Jayln rode 12.4 miles/hour.

Step-by-step explanation:

The question is asking for a unit rate for the speed in miles per hour that Jayln rode her bike over her 33.48 mile ride.  Since we know that she rode a total of 33.48 miles and the total time was 2.7 hours, we can set up our ratio as 33.48/2.7 or miles/hours.  In order to find unit rate, or the number of miles per one hour, we need to divide:  33.48 ÷ 2.7 = 12.4.  So, 12.4 mph is Jaylyn's speed.  

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3 years ago
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