Question

Please help! I give out medals, and I'll be a fan!

1. 10 • [2 + (24 – 8)] ÷ 4


2. Two opposite sides of a square are increased by 5 cm to form a rectangle. If the rectangle has a perimeter of 70 cm, what was the length of a side of the original square?

Answer 1

1) order of operations...do the innermost parenthesis...(24 - 8) then finish the parenthesis [2 + (what you get for an answer)] after that you go from left to right. what do you get?

Answer 2

order of operations

Answer 3

45?

Answer 4

that is correct if my mental math is good lol

Answer 5

1) 180/4 = 45
2)

Answer 6

Okay now 2) Two opposite sides of a square are increased by 5 cm to form a rectangle. If the rectangle has a perimeter of 70 cm, what was the length of a side of the original square?

We know a square had 4 equal sides...and a rectangle has 2 equal sides and 2 equal opposite sides...

if you increase 2 sides by 5...and now have a perimeter of 70...that is

x + x + (x+5) + (x+5) = 70

so that is the same as

4x + 10 = 70
4x = 60
x = ?

Answer 7

2)60

Answer 8

2) is not 60...

Answer 9

15?

Answer 10

try again?

Answer 11

@johnweldon1993

Answer 12

yes 15....it asks what the length of each side WAS....if each side was 15 that would make the perimeter 60...if you add 5 to 2 sides that increases the total perimeter to 70 ...which makes sense! so yes 15 would be your answer

Answer 13

Ok, thank you so much!!

Answer 14

does that make sense?

Answer 15

YES!!!!!!