Leilah has not yet

studied 600 of her 2400

flashcards. She studies

40 new cards each day.

What would be the equation?

40 * x - 600 = 0

Step-by-step explanation:

The first thing is to identify the variable (x) of the equation and they will be the number of days that Leilah will take to read her flashcards. Now if you need to study 600 out of 2400, it is because you have read 1800. Therefore we have to:

2400 - 1800 = 40 * x

rearranging

40 * x - 600 = 0

The above would be the equation of the situation

Leilah has not yet studied 600 of her 2400 flashcards. She studies 404040 new cards each day. 2400-40x=600

Stetson rents studio space for $600a month for music lessons. He charges his students $40 per hour and earned a profit of $2400 this month. 40x-600=2400

A kit contains 600 letter tiles and 40 number tiles. Each tile has the same mass, and the kit has a total mass of 2400g (600+40) x=2400