Answer:
75 minutes
Step-by-step explanation:
In this question, we are asked to calculate the time it will take a smaller hose out of two hoses to fill a swimming pool by itself.
Firstly, let’s say the volume of the swimming pool to fill is Xm^3.
Hence for both, the rate of filling is x/30 m^3/minutes. For the larger hose, rate will be x/50 m^3/minutes. For the larger hose, let the time taken be z minutes. It’s rate will be x/z m^3/minute.
Mathematically, adding both rates together give the rate of both at the same time. This means;
X/30 = x/50 + x/z
X/z = x/30 - c/50
x/z = 20/1500
x/z = 1/75
z = x/75
This means the time that it will take the smaller hose will be 75 minutes
Answer:
-10 and -9 -1 is the same 10
Okay, so the first graph shows the amount that Leona is payed versus the number of newspapers she delivers.
We can clearly see from the graph; the more newspapers she delivers, the more she's payed.
For the second question (the table), it looks like the fixed fee for the boat rental was $27, as that's the number that really doesn't match the rest of the table. (Not to mention it's the very first number.
Then, the hourly rate is $12, as the price rises by 12 every hour after hour 1.
For the third question, the y-intercept is the amount of money in Colby's savings after x amount of years.
