Ebony’s bank balance first reached $400 on Day 4. The last day her balance was $400 was Day 8. Determine . Explain how you determined these amounts. Estimate . Explain how you determined these amounts. Jade said that the amount of money Ebony took out of her account each day between Day 8 and Day 12 was the same amount of money she put into her account each day between Day 0 and Day 4. Recall that Day 12 is when the balance first reached $0. Without doing any calculations, how could you show Jade why that cannot be true?

Ebony’s bank balance first reached $400 on Day 4. The last day her balance was $400 was Day 8. Dete

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Ответ:

Johnson926

03.11.2020

Mathematics

The number of adult tickets sold was 5

Step-by-step explanation:

Let

x ----> the number of adult tickets

y ----> the number of child tickets

we know that

x+y=8

isolate the variable y

y=8-x ----> equation A

5.50x+3y=36.50 ----> equation B

Solve the system by substitution

substitute equation A in equation B

5.50x+3(8-x)=36.50

solve for x

apply distributive property left side

5.50x+24-3x=36.50

combine like terms

2.50x+24=36.50

subtract 24 both sides

2.50x=36.50-24

2.50x=12.50

Divide by 2.50 both sides

x=5

therefore

The number of adult tickets sold was 5

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