Answer:
1) Sylvia bought 4 bananas for 50 cents each and 1 apple for 80 cents. Write a numerical expression to represent this situation and then find the total cost in dollar.
- n = 4 × 50 + 80
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= 200 + 80
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= 280 cents or 2.80 dollars
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The total cost is 2.80 dollars
2) Robert bought 2 burgers for $3.50 each and 3 medium French fries for $1.20 each. Write a numerical expression to represent this situation and then find the cost.
- n = 2 × 3.50 + 3 × 1.20
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= 7 + 3.60
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= 10.60
3) Martha pays 20 dollars for materials to make earrings. She makes 10 earrings and sells 7 for 5 dollars and 3 for 2 dollars. Write a numerical expression to represent this situation and then find Martha's profit?
- n = 7 × 5 + 3 × 2 - 20
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= 35 + 6 - 20
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= 41 - 20
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= 21
4) John bought 3 pants for 25 dollars each and paid with a one hundred-dollar bill. Write a numerical expression to represent this situation and then find how much money John gets back from the cashier?
- n = 100 - 3 × 25
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= 100 - 75
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= 25
5) The price of a shirt is 100 dollars. The store manager gives a discount of 50 dollars. A man and his brother bought 4 shirts and then share the cost with his brother. Write a numerical expression to represent this situation and then find the price paid by each brother.
- n = (100 - 50) × 4 ÷ 2
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= (50)× 4 ÷ 2
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= 200 ÷ 2
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= 100
Step-by-step explanation:
Sorry if dollars are used in the word problems. Bare with me. Thank You!
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