Equivalent expressions with percent problems

After the outbreak of a mysterious disease, the average wait time at a hospital increased by 70%. Before the outbreak, the average wait time at the hospital was m minutes.

Which of the following expressions could represent the average wait time at the hospital after the outbreak?

Choose 2 answers:

• 1.7m

• m+70

• 170/100 m

• 0.7m

Tags

CCSS.6.EE.B.6

Bo is buying a board game that usually costs B dollars. The game is on sale, and the price has been reduced by 18%.

Which of the following expressions could represent how much Bo pays for the game?

Choose 2 answers:

• 0.82B

• 1.18B

• B - 0.18

• B - 18

• B - 0.18B

Tags

CCSS.6.EE.B.6

Eiko is wearing a magic ring that increases the power of her healing spell by 30%. Without the ring, her healing spell restores H health points.

Which of the following expressions could represent how many health points the spell restores when Eiko is wearing the magic ring?

Choose 2 answers:

• 0.7H

• 130/100 H

• 1.3H

• H - 0.30H

Tags

CCSS.HSA-SSE.A.1A

Crispy Clover, a popular vegetarian restaurant, introduced a new menu that has 20% more dishes than the previous menu. The previous menu had D dishes.

Which of the following expressions could represent how many dishes Crispy Clover's new menu has?

Choose 2 answers:

• D + 1/5D

• 1.2D

• D + 20D

• D + 20

• 20D

Tags

CCSS.6.EE.B.6

On Monday, Florencia's hair was h centimetres long. She got a haircut on Tuesday, so her hair was only 75% of the length it was on Monday.

Which of the following expressions could represent how many centimetres long Florencia's hair was after the haircut?

Choose 2 answers:

• h(1 - 0.75)

• 3/4h

• 0.75h

• 1/4h

Tags

CCSS.6.EE.B.6

In March, Delphine's house had 40% more snowfall than in February. Delphine's house had f centimetres of snowfall in February.

Which of the following expressions could represent how much snowfall Delphine had at her house in March?

Choose 2 answers:

• 40f

• 40 + f

• 1.4f

• 40f + f

• 4/10f + f

Tags

CCSS.6.EE.B.6