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xeze [42]
3 years ago
9

Donna and Emily are sisters. Donna’s age and Emily’s age add up to 31. Donna is 3 years younger than Emily.How old are the two s

isters?
What is the system of equations for this problem and how do I solve it using the elimination method?
Mathematics
1 answer:
pishuonlain [190]3 years ago
3 0

Answer:

donna is 14.5 and emily is 17.5

Step-by-step explanation:


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The number of tickets sold on Friday were 66 children tickets and 97 adult tickets.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Let x represent the number of children and y represent the number of adult, hence:

5.2x + 9.9y = 1303.5     (1)

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From both equations:

x = 66, y = 97

The number of tickets sold on Friday were 66 children tickets and 97 adult tickets.

Find out more on equation at: brainly.com/question/2972832

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Solution for x+4 is equal to 10​
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