Which choice shows Roberto’s equation and its solution?

Question

Roberto wrote a sentence that describes an equation.

Half of a number is 45.

Which choice shows Roberto’s equation and its solution?

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Comments

2. Which statement about equations and expressions is true?  

An example of an equation is  because it shows that two expressions are equal.

An example of an expression is  because it shows that two equations are equal.

An example of an equation is  because it is a mathematical phrase represented by numbers, a variable, and operations.

An example of an expression is  because it is a mathematical phrase represented by numbers, a variable, and operations.

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3. Which phrase is usually associated with addition? 

the difference of two numbers

triple a number

half of a number

the total of two numbers

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4. For which equations is 8 a solution? Check all that apply.

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5. Which phrase can be represented by an equation? 

twice as much as a number

12 less than a number

half of a number is 15

the difference of 20 and a number

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6. Which sentence could be used to describe the equation ?

The sum of 78 and a number is 105.

The number 105 is more than 78.

The sum of 105 and 78 is a number.

Seventy-eight is more than the number one hundred five.

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7. Which are equations? Check all that apply.

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8. Which shows the equation and solution for this sentence?

Sixteen is nine more than a number.

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9. What is the name for a statement that shows two expressions are equal?

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10. LaTricia wrote a sentence as an equation.

 

 

Twelve is the product of three and a number.

 

Which statement best describes LaTricia’s work? 

LaTricia is not correct. The word product does mean to multiply, but 12 should be the product and 3 should be one of the factors.

LaTricia is not correct. The equation should show that 12 times 3 equals w.

LaTricia is correct. The word product means to multiply and the equation uses multiplication.

LaTricia is correct. The sentence and the equation both contain 12 and 3 in the same order.

Answer 1

1. 4
2. 1
3. 4
4. x+2=10; x-4=4; 3x=24; x/8=1
5. 3
6. 1
7. 1 4 6 7
8. 1
9. Equation
10. 1