Answer:
2 3/5
Step-by-step explanation:
7 2/5 decreased by 4 4/5, Is the same as 7 2/5 - 4 4/5, which equals to 2 3/5.
Answer:
-84
Step-by-step explanation:
Answer: 160
Step-by-step explanation: She gave her sister one fifth of the collection; one fifth written as a percent is 20% (I did one and divided it by five). To turn 20% to a decimal I didved by 100 to get 0.20. I multiplied 200 and 0.20 and got 40. 40 is the amount of shells given to her sister, so you would subtract 40 from 200 to find how many shells were left. 200-40=160.
Area of square painting is 400 square inches.
Let the side of square painting is = a inch
So the area of square painting is =

square inch.
So


Length of wood trim to need to go around the painting is equal to the perimeter of square painting .
So the perimeter of square painting is = 4 * (side)
= 4* 20 = 80 inch.
So the required length of wood trim is = 80 inch.
I think that it is 18. It's asking for range right? So when using range you add the numbers together, right? Sorry if it's not correct.