Matt is competing in a long jump event.His first jump was 3.56 meters.So far,the longest jump in the event is 4.02 meters.How mu
1 answer:
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Answer:
<em>Riley has 72 tokens</em>
Step-by-step explanation:
<u>System of Equations </u>
We have two conditions for the tokens Riley and Erik have earned. Let's call x and y to the number of tokens of Riley and Erik respectively. The first condition states that
Solving for y
The second condition is that the ratio of the number of tokens that Riley had to the number of tokens that Erik has is 8 to 7. It's written as
Or equivalently
Replacing y from the first equation
Operating
Simplifying
Riley has 72 tokens
Answer:
a) x = 5
b) x = 4
Step-by-step explanation:
a) = 9.5
3x+4 = 9.5(2)
3x = 19-4
x = 15/3
x = 5
b) = 5
7+2x = 5(3)
2x = 15-7
x = 8/2
x=4