The city is building a parking lot for a new office building. The expression to represent the number of parking spots in the new
parking lot is StartFraction 5 x over 2 EndFraction minus 6, where x represents the number of parking spots in the first row. Use the order of operations to find out how many parking spots are in the parking lot if there are 30 parking spots in the first row. A.9
B.24
C.69
D.144
If the 5 of them weigh 1/4 of a ton then 1 of them weigh x
5/1 = 1/4//x Do you see what happens? Just by writing down the givens you get a proportion. It will work better for you if you change the 1/4 to 0.25
5/1 = 0.25/x Now it looks like an ordinary proportion. Cross multiply 5x = 0.25*1 divide by 5 x = 0.25/5 x = 0.05 tons. We better change this to pounds.
1 ton = 2000 pounds 0.05 ton = x
1/0.05 = 2000/x Cross multiply x = 2000 * 0.05 x = 100 pounds.
