Marcus earns money from feeding cats and answering emails. He earns $7 a week for each cat he feeds and $0.20 for each email he
answers. Marcus answered 140 emails and earned $49 last week. Part A: Create an equation that will determine the number of cats he fed. (3 points) Part B: Solve this equation justifying each step with an algebraic property of equality. (6 points) Part C: How many cats did Marcus feed last week?
A. 7 times number of cats=pay if pay=49 then 7 times number of cats=49 divide both sides by 7 number of cats=7
da equaton can be c=number of cats 7c=49
he fed 7 cats
B.
7c=49 divide both sides by 7 equality property of division (7c)/7=49/7 math fact (7/7)c=7 1c=7 identity property of division c=7 identity property of multiplication 7 cats
An estimate helps you place the decimal point because when you place 3.7 and 5.1 to multiply you have to count how many spaces of numbers there are. So the answer is 18.87.
