Talia is selling magazine subscriptions and books to raise funds for a field trip. She has already earned $10 selling magazines and $7 selling books. Talia earns $2.50 for each magazine subscription and $3.50 for each book. Each week, she sells one of each. After WEEK 4, how much will she have earned from selling magazine subscriptions, and how much will she have earned from selling books? Indicate one number for magazines and one number for books. Use the table below to help you.

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step-by-step explanation:

just copy and paste it.

visit this site for a tutorial ʖ-tutorial-flash-cards/

the square root of what number? if you add that, then someone will probably answer the question.

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15