Practice the questions of McGraw Hill Math Grade 8 Answer Key PDF Lesson 6.5 Percent Change, Mark-up, and Discount to secure good marks & knowledge in the exams.
McGraw-Hill Math Grade 8 Answer Key Lesson 6.5 Percent Change, Mark-up, and Discount
Exercises Solve
Question 1.
What is the selling price for an item that costs $50 and has a mark-up of 40%?
Answer:
$70.00,
Explanation:
The cost of an item is $50,
Mark up of 40%,
discount amount of an item = $50 x 40%
= 50 x \(\frac{40}{100}\)
= 50 x 0.4
= 20
the selling price for an item = 50 + 20 = 70
$70.00
Question 2.
What is the mark-up amount for an item that costs $125 and has a mark-up of 35%?
Answer:
$43.75,
Explanation:
The cost of an item is $125,
Mark up of 35%,
discount amount of an item = $125 x 35%
= 125 x \(\frac{35}{100}\)
= 125 x 0.35
= 43.75
Question 3.
What is the selling price for an item that costs $70 and has a discount of 40%?
Answer:
$42.00,
Explanation:
The cost of an item is $70,
Percentage of discount is 40%,
discount amount of an item = $70 x 40%
= 70 x \(\frac{40}{100}\)
= 70 x 0.40
= 28.00
the selling price for an item = 70 – 28 = 42
$42.00
Question 4.
What is the discount amount for an item that costs $160 and has a discount of 45%?
Answer:
$72.00,
Explanation:
The amount for an item that costs $160,
Percentage of discount is 45%,
discount amount of an item = $160 x 45%,
= 160 x \(\frac{45}{100}\)
= 160 x 0.45
= 72.00