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Lorico [155]
3 years ago
13

Andrea writes a down a number , k. I write down a number that is 4 less than 5 times Andrea's number. If the sum of our numbers

is 14, find the two numbers.
Mathematics
1 answer:
devlian [24]3 years ago
7 0

Givens

Andrea: K

Me: 5k - 4

Sum

k + 5k - 4 = 14

Solve

6k - 4 = 14              Add 4 to both side.

6k - 4 + 4 = 14 + 4

6K = 18                  Divide by 6

k = 18/6

k = 3

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What is the probability that a student selected at random is a boy?
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