july98
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NEED HELP ASAP 60 POINTS AND WILL MARK AS BRAINLIEST Alex, an eighth grader, and Eric, a seventh grader, need to determine who came closer to their grade’s state record for the triple jump. Alex jumped 39.85 feet and Eric jumped 37 feet and "1" "1" /"4" inches. Who was closer to the state record if the eighth-grade record is 42.25 feet and the seventh-grade record is 39 feet 3 inches?

Respuesta :

42.25-39.85=2.4
37+1 1/4= 38.25
39.25-38.25=1
Eric came closer. Hope this helps!

Answer:

Eric was closer to the state record.

Step-by-step explanation:

Consider the provided information.

Alex jumped 39.85 feet the eighth-grade record is 42.25 feet.

Let see how closer Alex jumped was.

[tex]42.25 -39.85=2.4[/tex]

Eric, a seventh grader, and he jumped 37 feet and "1" "1" /"4" inches. The seventh-grade record is 39 feet 3 inches.

First convert 37 feet and "1" "1" /"4" inches into feet.

[tex]1\frac{1}{4}=\frac{5}{4}[/tex]

[tex]1\ in=0.083\ foot[/tex]

Multiply both sides by 5/4.

[tex]\frac{5}{4}\ in=0.104167\ foot[/tex]

That means total distance was 37+0.104167=37.104167 feet.

seventh-grade record is 39 feet 3 inches.

3 in = 0.25 foot

Therefore, the seventh grade record is 39+0.25=39.25 feet

[tex]39.25-37.104167=2.145833[/tex]

2.145833 is smaller than 2.4

Hence, Eric was closer to the state record.

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