Question

Write and solve a real world problem that can be represented by the expression (-3)(5)+10

Answer 1

Problem:

The initial temperature of a room is equal to 10 degrees Celsius. The temperature of the room decreases by 3 degrees per day. Find the temperature of the room in 5 days.

Solution:

The temperature of the room in five days is given by the expression:

$(-3) (5) +10$

Resolving the expression we have:

$(-3) (5) +10 = -15 + 10\\(-3) (5) +10 = -5$

Therefore, the temperature of the room for day number 5 is equal to -5 degrees Celsius.

Answer 2

I have rows of cookies, with 5 cookies in each row. i have to give 3 rows away, but after i do that then my friend gives me 10 cookies from their bag, what is the change in the total number of cookies i have.

this gets you the -3(5) and then + 10 which -3(5)+10 = -5

I lost 5 cookies