A: We want to select one person who works out three days a week. Our probability is simply 12/80 ~~ 15%

B: At least 4 days a week means 4 days, 5 days, or 6 days.
Hence, we have: (9 + 20 + 8)/80 = 46%

C: At least once a week.
Let's find out how many DO NOT work out and subtract that from our sample space. This means they must work out at least once a week.

(80 - 15)/80 = 81%

6 0

3 years ago

What is the area if a triangle with a base of 7x and a height of 8x expresssed as a monomial

Ede4ka [16]

Answer:

Step-by-step explanation:

$Area=\frac{1}{2}*b*h\\\\=\frac{1}{2}*7x*8x\\\\=7x*4x\\\\=28x^{2}$

7 0

3 years ago

The difference of a number and 17 is more than 33

madreJ [45]

Answer:

In algebraic terms this means x-17>33

Step-by-step explanation:

to solve it x−17>33

1 Add 17 to both sides.

x>33+17

2 Simplify 33+17 to 50

x>50

5 0

3 years ago

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