Write the phrase as a mathematical expression. Use x as the variable.
-The difference of some number and 7.9
A)7.9
B)x - 7.9
C)x + 7.9
D)7.9x

Question

Quizplus · Accepted Answer

"The difference of some number and 7.9" translates to "x - 7.9" because when you subtract 7.9 from x, you are finding the difference between them. "The difference of some number and 7.9" can be written mathematically as x - 7.9, where x represents the unknown number.

Write the Phrase as a Mathematical Expression