ben answered the module in mathematics 4 hours less than thrice as fast as moira. if moira answered the module in 3 hours, how long would it take ben to answer the module?

0.8

Step-by-step explanation:

I will assume that the leading - before the 22 is a hyphen and not a minus sign. If it were a minus sign there would be no solution.

You can apply any of the following operations to all parts of such a compound inequality retaining its truth:

(1) Add or subtract a constant.

(2) Multiply or divide by a positive number.

(3) Multiply or divide by a negative number and reverse the signs.

Start by adding 7 to all parts to get:

29

>

−

5

x

≥

4

Divide by 5:

29

5

>

−

x

≥

4

5

Multiply by -1 and reverse the signs:

−

29

5

<

x

≤

−

4

5

Or in decimal notation:

−

5.8

<

x

≤

−

0.8