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Which number sentence below matches this word problem?

Jay had to paint part of the outside of his house. He spent 7 hours painting one side and 12 hours painting another. How long did it take him to paint both sides?

A. [tex]\( 7 + 12 = 19 \)[/tex]
B. [tex]\( 84 \div 7 = 12 \)[/tex]
C. [tex]\( 12 - 7 = 5 \)[/tex]
D. [tex]\( 12 \times 7 = 84 \)[/tex]

Sagot :

GinnyAnswer
To determine the total amount of time Jay spent painting both sides of his house, we need to add the hours he spent on each side together. Here's a step-by-step explanation:

1. Identify the time spent on each side:
- Jay spent 7 hours painting one side.
- Jay spent 12 hours painting the other side.

2. Combine the times:
- To find the total time spent painting both sides, we add the hours together.

3. Perform the addition:
- [tex]\( 7 \text{ hours} + 12 \text{ hours} = 19 \text{ hours} \)[/tex]

4. Match this calculation to the correct number sentence:
- [tex]\( 7 + 12 = 19 \)[/tex]

So, the number sentence that matches the word problem is:

A. [tex]\( 7 + 12 = 19 \)[/tex]

Thus, it took Jay 19 hours to paint both sides of his house.
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