Sagot :
Problems Involving Decimals
In solving word problems involving decimals, first, identify what is asked. Then, look for the given facts. Establish the number sentence and the operation/s to be used. Make sure that the operation/s used will bring out the correct answer. Check the answer using the number sentence and see if it will satisfy the given condition.
Learning Task 3:
Answers:
- ₱2100.25
- ₱1506.75
- ₱17061
- 4.02 m
- 1.3 liters
Solutions:
1. Asked: The cost of 15.5 weeks of lunches.
Given: ₱135.50 - cost of lunch per week
15.5 - number of weeks
Operation: multiplication
Number Sentence: ₱135.50 x 15.5 = N
Solution: ₱135.50 x 15.5 = N
₱2100.25 = N
Answer: 15.5 weeks of lunches would cost ₱2100.25.
2. Asked: Lorna's earnings.
Given: ₱71.75 - Lorna's earning per hour from gardening
21 - number of hours Lorna have worked
Operation: multiplication
Number Sentence: ₱71.75 x 21 = N
Solution: ₱71.75 x 21 = N
₱1506.75 = N
Answer: Lorna will earn ₱1506.75.
3. Asked: The amount Paul's father had to pay each month.
Given: ₱1023660 - cost of the car loan
60 months - terms of payment
Operation: division
Number Sentence: ₱1023660 ÷ 60 = N
Solution: ₱1023660 ÷ 60 = N
₱17061 = N
Answer: Paul's father had to pay ₱17061 each month.
4. Asked: The length of the rope.
Given: 1.28 m - length of the ribbon
2.74 m - the difference between the length of the ribbon and the
rope.
Operation: addition
Number Sentence: 1.28 + 2.74 = N
Solution: 1.28 + 2.74 = N
4.02 = N
Answer: The rope is 4.02 m long.
5. Asked: The volume of the water in the bottle.
Given: 5.2 liters - volume of the pail
3.9 liters - the difference between the volume of the pail and the
bottle
Operation: subtraction
Number Sentence: 5.2 - 3.9 = N
Solution: 5.2 - 3.9 = N
1.3 = N
Answer: The volume of the bottle is 1.3 liters.
How to solve problems involving decimals: https://brainly.ph/question/5010979
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