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Select the correct combination of mathematical signs to replace ‘*’ signs and to balance the given equation.
8 * 6 * 7 * 3 * 12
- a)+ - ÷ =
- b)+ - + =
- c)+ + - =
- d)- + + =
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Select the correct combination of mathematical signs to replace &lsquo...
Rewriting each option by replacing blanks by given symbols and finding the correct combination, we get
1) 8+6-7÷3 = 12 is not correct as L.H.S. is equal to 14 – 2.33 = 11.67
2) 8+6-7+3 = 12 is not correct as L.H.S. is equal to 10.
3) 8+6+7-3 = 12 is not correct as L.H.S. is equal to 18.
4) 8-6+7+3 = 12 is correct as L.H.S. is equal to R.H.S.
Hence answer is - + + =.
Most Upvoted Answer
Select the correct combination of mathematical signs to replace &lsquo...
Analysis:
Given equation: 8 * 6 * 7 * 3 * 12
Solution:
- To balance the equation, we need to replace the '*' signs with mathematical signs (+, -, or /) in a way that the equation is still valid.
- Since multiplication is commutative, we can change the order of numbers without changing the result of the equation.
Explanation:
- Let's try replacing the '*' signs with '-' and '+'.
- If we choose '-' for the first two multiplications: 8 - 6 * 7 * 3 * 12 = 8 - 6 - 7 * 3 * 12
- This results in an invalid equation since we would get a negative number as the first term.
- If we choose '+' for the first two multiplications: 8 + 6 * 7 * 3 * 12 = 8 + 6 + 7 * 3 * 12
- This results in a valid equation where the sum of the terms is equal to the original expression.
Conclusion:
- The correct combination of mathematical signs to replace the '*' signs and balance the equation is: - + + =
Given equation: 8 * 6 * 7 * 3 * 12
Solution:
- To balance the equation, we need to replace the '*' signs with mathematical signs (+, -, or /) in a way that the equation is still valid.
- Since multiplication is commutative, we can change the order of numbers without changing the result of the equation.
Explanation:
- Let's try replacing the '*' signs with '-' and '+'.
- If we choose '-' for the first two multiplications: 8 - 6 * 7 * 3 * 12 = 8 - 6 - 7 * 3 * 12
- This results in an invalid equation since we would get a negative number as the first term.
- If we choose '+' for the first two multiplications: 8 + 6 * 7 * 3 * 12 = 8 + 6 + 7 * 3 * 12
- This results in a valid equation where the sum of the terms is equal to the original expression.
Conclusion:
- The correct combination of mathematical signs to replace the '*' signs and balance the equation is: - + + =
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Select the correct combination of mathematical signs to replace ‘*’ signs and to balance the given equation.8 * 6 * 7 * 3 * 12a)+ - ÷ =b)+ - + =c)+ + - =d)- + + =Correct answer is option 'D'. Can you explain this answer?
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