One idea is:
Paul wants to buy an iphone X. He has savings of $100 to start with. Local McDonalds pays $7 per hour (after tax) to students on summer break for helping out at the counter. The iphone costs $1000. At least how many hours does Paul need to work at McDonalds to be able to afford the iphone.
So, that matches ax+b>c in that
a is the hourly earning
b is the initial savings
c is the price of the iphone
Answer:
Student 1 has the correct answer
Student 2 started of OK but then divides the number of white marbles by the number of non-white marbles, which is incorrect.
Student 3 reports a probability larger than 1 which is impossible. Also the answer is not in percentages.
Starting amount = g
Throughout the day 200 pounds is added and 1400 pounds is removed ( 700 x 2 = 1400)
Final weight is 1,100 pounds
g + 200 - 1400 = 1100
Simplify:
g - 1200 = 1100
Add 1200 to both sides:
g = 2300 pounds
486/6 = 81
Square root 81 = one side length = 9m volume = 9^3 = 729
Yes. depending on where you buy it and how much the ball costs
