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bija089 [108]
2 years ago
8

Students in Mrs. Palmer's third grade class are working on times tables, and they demonstrate mastery by passing tests. Evan has

passed 12 tests so far. His classmate, Ann, has passed 2 tests of them. From now on, Evan plans to take and pass 4 tests per week. Meanwhile, Ann plans to do 5 per week. At some point, Evan will catch up to Ann. How long will it take? How many tests will each child have passed?
Mathematics
2 answers:
natita [175]2 years ago
5 0

Step-by-step explanation:

10 weeks 52 tests

<u>pls mark brainliest if possible!</u>

<u>dm me if you want explanation</u>

hammer [34]2 years ago
4 0

Answer: Don't know

Step-by-step explanation:

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Answer:

There will be 22.5 grams left after 32 hours.

Step-by-step explanation:

A half-life is how long it takes for half of the amount to go away. In this case, we see that we have two half-life periods worth, which you can determine by dividing the total time by the half-life time.

32hrs/8hrs = 4 half lives.

Now we can raise 1/2 to the power of how many half lives we have (2). Then we multiply that by the amount in the sample.

(1/2)^4 * 360

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And this is an exponential function.

4 0
2 years ago
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Step-by-step explanation:

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have a great day my man

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