Question

Samantha wants to use her savings of $1,150 to buy shirts and watches for her family. The total price of the shirts she bought was $84. The watches cost $99 each. What is the maximum number of watches that Samantha can buy with her savings? A.8 B.9 C.10 D.11

Answer 1

she has 1150.she used 84 for shirts. the rest may be used for watches. so this can be modeled, knowing that each watch costs 99, by the equation:
1150=99x+84 because 1150 is shirt money and watch money put together. watch money is some number times 99.
so subtract 84 from both sides.
so 1066=99x and then divide both sides by 99
so x=10.76(76repeating forever)
you cant get a fraction of a watch, so the answer is 10