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2 years ago

9

briana records the race times for a track meet. she records for 5 groups of 4 student's each . how many observations does she ma

ke?

1 answer:

Taya2010 [7]2 years ago

7 0

She makes 20 observations in all, because there are 5 groups with 4 students in each group. 5x4=20

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djyliett [7]

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Answer: $(4, 3)$

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1) Multiply the first equation by 3,and multiply the second equation by -5: $3(2x-5y=-7)$ , $-5(5x-3y=11)$

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2 years ago

there are 238 total students graduating. They are sitting in seven rows, with the same number of students in each row. How many

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Answer:

34

Step-by-step explanation:

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Hope this helps!

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