“To use proportions to solve ratio word problems, we need to follow these steps:
Identify the known ratio and the unknown ratio.
Set up the proportion.
Cross-multiply and solve.
Check the answer by plugging the result into the unknown ratio.”
I hope this helps.
Answer:
A
Step-by-step explanation:
The chance the coin will show 'tails' is 1/2, since there are only 2 sides to a coin. The chance that the die will show an even number is also 1/2, since half of the numbers on a die are even, and half are odd. But, since both of these events depend on each other, or in other words, are dependent, we have to multiply both numbers. 1/2 x 1/2 = 1/4, therefore your answer is A.
3z < 30 - 6
3z < 24
z< 24/3
z< 8
answer is z < 8
Answer:
<em>Answer: B. XY</em>
Step-by-step explanation:
<u>Lines and Circles</u>
There are four lines in the figure:
OB =Radius: A segment from the center to the circumference
XY = Secant: A line that intersects the circle in two points
EF = Chord: A line segment that joins two points on the circle
XV and XB = Tangent: A line that touches the circle on one point and is perpendicular to the radius.
Answer: B. XY
Exact Answer: 83/15
Decimal Answer: 5.53 (bar notation above 3)
Mixed Number Answer: 5 8/15
Step-by-step explanation:
Convert the mixed numbers to improper fractions, then find the LCD and combine.