Question

Tim has m dollars. Rebecca has $6 less than 1/10  times the number of dollars that Tim has. Which expression represents the total amount of money that Tim and Rebecca have? If Tim has $70, how much money do Rebecca and Tim have altogether?

Answer 1

The equation would be m +.1m-6 = total
We can plug in 70 for Tim to get the total amount of 71.

Answer 2

together they have $71.

Explanation:

Tim has m dollars.

Rebecca has $6 less than 1/10 times the number of dollars that Tim has.

Let Rebecca has r dollars.

So the expression becomes:

`r=0.1m-6`

The total amount of money that Tim and Rebecca have can be given as:

m+r

=
`m+0.1m-6`

If m = 70

then r =
`0.1(70)-6`

=
`7-6=1`

Hence, Rebecca has $1.

And altogether they both have =
`70+1=71` dollars