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8 tenths less than is equal to the sum ...

8 tenths less than _______ is equal to the sum of 5.56 and 4.84.

A

11.2

B

9.21

C

5.36

D

12.56

Text Solution

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The correct Answer is:
To solve the problem "8 tenths less than _______ is equal to the sum of 5.56 and 4.84," we can follow these steps: ### Step-by-Step Solution: 1. **Calculate the sum of 5.56 and 4.84.** \[ 5.56 + 4.84 = 10.40 \] 2. **Understand the phrase "8 tenths less than ______."** - Let the unknown number be represented as \( x \). - "8 tenths" can be written as \( 0.8 \). - Therefore, "8 tenths less than \( x \)" can be expressed as: \[ x - 0.8 \] 3. **Set up the equation based on the problem statement.** - According to the problem, we have: \[ x - 0.8 = 10.40 \] 4. **Solve for \( x \).** - To isolate \( x \), add \( 0.8 \) to both sides of the equation: \[ x = 10.40 + 0.8 \] - Now, perform the addition: \[ x = 11.20 \] 5. **Final Answer:** - The number that satisfies the condition is: \[ x = 11.20 \]
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