Question

The sum of a number times 4 and 23 is at most -15.
Use the variable x for the unknown number

Answer 1

Rule: Convert word problem to an mathematical expression

Answer 2

Translate the words into mathematical terms:

"the sum of": +
"a number": a variable such as x
times: x
and: "23"
"is at most": <=

Answer 3

"The sum of a number times 4"
4 * x +
"and 23 "
4x + 23

"is at most -15" <-- it can be less or -15, it cannot be more than -15
\(\bf 4x + 23 \le -15\)

Answer 4

The wording of this problem is not the best-it would be clearer if the problem read, "the sum of 23 and a number times 4 is at most 15".

Answer 5

yeah I kept reading it and saying this doesn't sound right. Thanks you guys.

Answer 6

yw