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How do you solve #5(80-:8) + (7-2) - (9*5)#?

Answer 1

Emery Allen

Work from the inside out, completing computations inside the parentheses first. Final answer:10

#5(80-:8) + (7-2) - (9*5)# #=5(10)+(5)-(45)# #=50+5-45# #=55-45# #=10#

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Answer 2

Everly Taylor

To solve the expression, follow the order of operations (PEMDAS/BODMAS):

Start with the parentheses: 80 ÷ 8 = 10, and 7 - 2 = 5.
Simplify inside the parentheses: 5(80 - 10) + 5 - (9 * 5).
Complete the multiplication inside the parentheses: 5(70) + 5 - (45).
Perform the multiplications: 350 + 5 - 45.
Add and subtract from left to right: 355 - 45 = 310.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.