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 o f 40%, discounted amount of an item is $50Â x 40%
= 50 x \(\frac{40}{100}\), 50 x 0.4 = 20 the selling price for an item = 50 + 20 = 70, So $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 = $125Â x 35%
= 125 x \(\frac{35}{100}\) = 125 x 0.35, So 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%, discounted amount of an item is $70 x 40% = 70 x \(\frac{40}{100}\) = 70 x 0.40 = 28.00 the selling price for an item = 70 – 28 = 42, So $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, So 72.00.