Answer: Z=5
Step-by-step explanation:
Solve the rational equation by combining expression and isolating the variable z
Answer:
There may be 1 or 3 tricycles in the parking lot.
Step-by-step explanation:
Since at any point in time, there could be bicycles, tricycles, and cars in the school parking lot, and today, there are 53 wheels in total, if there are 15 bicycles, tricycles, and cars in total, to determine how many tricycles could be in the parking lot, the following calculation must be performed:
13 x 4 + 1 x 3 + 1 x 2 = 57
11 x 4 + 1 x 3 + 3 x 2 = 53
10 x 4 + 3 x 3 + 2 x 2 = 53
8 x 4 + 5 x 3 + 2 x 2 = 51
10 x 2 + 1 x 3 + 4 x 4 = 39
9 x 3 + 1 x 2 + 5 x 4 = 49
Therefore, there may be 1 or 3 tricycles in the parking lot.
You subtract 5 to the other side so it'll read -6n=-4 then divide -6 to the other side and it'll be 2/3
Let x be the amount of hours the plumber worked.
Therefore, we get:
40x+65=325
Solve for x.
40x=260
x=6.5
Therefore, the plumber worked for 6.5 hours.