Web — how do you write the expression for: The sum of twice a number and half the number is 10? Algebra expressions, equations, and functions variable. Webthe expression (1/2)[x+10] represents the one half of the sum of a number and 10.

Understanding the Context

It is defined as the combination of constants and variables with. Web — you know that you're dealing with. A sum → this means that you are adding something, so you're going to use the + sign; Of a number → this means that you're. The sum of a number and 10 is x+10.

Key Insights

Half of the sum is (x+10)/2. Webhow do you define a variable and write an expression for each phrase: Let the number be x x x. Write the equation based on the given information: 2x + \frac {x} {2} = 10 2x+2x=10. 2x + \frac {x} {2} = \frac {4x + x} {2} =. Sum = 256.

Final Thoughts

25. Get a widget for this calculator. A sum is the result of adding together a set of numbers. A sum is the total amount. Web — just convert the sentence into an equation like so: Let n represent a number. Add these things together.

See the entire explanation below: First, let's call a number n. The sum means to add or + therefore, the sum of a number and 10 can be written. Web — we can represent a number in general by #x#. Halving a number means dividing it by two, so the expression that shows the half of a number is #x/2#, since you.