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8th grade math; Help me out!

(1 pt) Evaluate the expression when p = –5 and q = 10

15 + 3q ÷ p

A. 9
B. 36
C. -9
D. -36

Also, how did you get your answer? Please explain, thanks!

Respuesta :

A. 9
15+3*10÷-5
15+30÷-5
15-6
Always follow PEMDAS
kanest
Use PEMDAS for the order of operations:

Parentheses
Exponents
Multiplication/Division
Addition/Subtraction

Plug your p and q values into the equation:

[tex]15 + 3(10) \div -5[/tex]

3(10) includes parentheses, so operate on that first:

[tex]3 * 10 = 30[/tex]
[tex]15 + 30 \div -5[/tex]

30 / -5 is division, so operate on that next:

[tex]30 \div -5 = -6[/tex]
[tex]15 + -6[/tex]

Finally, we have addition, so operate on that last:

[tex]15 + -6 = 9[/tex]

The answer is A. 9.