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3 years ago

11

What is the value of 7 + z ÷ 2, when z = 10?

2 answers:

Len [333]3 years ago

8 0

To solve this problem, we must substitute the given value for z (10) into the expression and then simplify, as modeled below:

7 + z / 2

7 + 10/2

Now, in order for us to simplify this expression, we must remember the order of operations, outlined by PEMDAS. This tells us that we should compute values in parentheses first, then exponents, after that multiplication and division, and finally addition and subtraction. This means that we must perform the division in our problem and then the addition after. This is modeled below:

7 + 10/2

(Divide 10/2)

7 + 5

(Find the sum)

12

Therefore, your answer is 12.

Hope this helps!

mafiozo [28]3 years ago

5 0

Plug in 10 for z. Remember to follow PEMDAS (Parenthesis, Exponents (& roots), Multiplication, Division, Addition, Subtraction)

7 + 10/2

Divide 10 with 2

10/2 = 5

Add 5 with 7

5 + 7 = 12

12 is your answer

hope this helps

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