Data:
Apples = 28
Oranges = 20
Pears = 12

What is the ratio of apples to the total pieces of fruit?
Solving:
 $\frac{apples}{apples+oranges+pears} = \frac{28}{28+20+12} = \frac{28}{60} \frac{\div4}{\div4} \to\:\boxed{\boxed{ratio = \frac{7}{15}}}\end{array}}\qquad\quad\checkmark$

5 0

3 years ago

A sample of 4 different calculators is randomly selected from a group containing 19 that are defective and 36 that have no defec

Liono4ka [1.6K]

The probability of all calculators having no defects is 16.8%. The probability of at least one defect is the complement of that probability.
ie an 83.2% probability of at least one defect.

6 0

3 years ago

Write the equation of the line that passes through the point ( -6 , 2 ) and is parallel to the line y = 1/2x + 4.

SashulF [63]

Parallel lines need the same slope, and for y = 1/2x + 4, it is 1/2.

Let's solve for b.

2 = 1/2(-6) + b
2 = -3 + b
Add 3 on both sides.
5 = b

y = 1/2x + 5

8 0

3 years ago