Answer:
56
Step-by-step explanation:
Using a system of equations, it is found that Wilma is 50 years old and Yvonne is 10 years old.
<h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the variables are given as follows:
- Variable y: Yvonne's age.
Wilma is 5 times as old as yvonne, hence:
x = 5y.
In ten years, yvonne's age will be a third of wilma's age, hence:

Since x = 5y:


3y + 30 = 5y + 10
2y = 20.
y = 10.
Then:
x = 5y = 5 x 10 = 50.
Wilma is 50 years old and Yvonne is 10 years old.
More can be learned about a system of equations at brainly.com/question/24342899
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Her daughter's length would be 61 inches because 66 1/7 - 5 1/7 = 61 in.
The probability of no failures in five trials is 0.2%.
One way is just multiplying it vertically like
754
x 4
---------
3016
Or multiply it by place value like
700 x 4 = 2800
50 x 4 = 200
4 x 4 = 16
Then add all the answers together