Answer:
x = 22, y = 22/7
Step-by-step explanation:
solve for y using first equation:
-2 + 3y = 20
3y = 22
y = 22/7
substitute 22/7 into second equation:
7y = x
7(22/7) = x
x = 22
Answer: 349.6 gallons
Step-by-step explanation:
This is a simple proportion problems.
The flow rate = 87 . 4 gallons was dispensed in 15 minutes
That is 15 minutes = 87.4 gallons
Therefore 1 minute = ( 87.4/15 ) gallons
Recall 60 minutes = 1 hour
Now in 60 minute = (87.4/15 ×60/1 ) gallons
= 87.4 × 4
= 349.6 gallons
(Invariably) , Alternative method
15 minutes. = 1/4 of an hour 1/4 = 87 .4 gallons. A gallon. = 87.4/1/4
Recall that reciprocal of 1/4 = 4
Now = 87 .4/1/4
=87.4 × 4
Therefore 1 hour = 87.4 × 4 × 1
= 349 . 6 gallons
If you don't..I don't either by answering your question...
Answer:
b
Step-by-step explanation:
2 times -11 +29 =7
Answer:
Ok, she walks 3 miles to and from the library.
So in total, she walks 3 miles two times, then in one week, she walks 2*3mi = 6miles.
She says that she walked about 300 miles in total.
We must see if 300 miles is a multiple of 6 miles.
300mi/6mi = 50.
This means that she would walk about 300 miles since she started counting if she went to the library and back home exactly 50 times (again, since she started counting).
And she does this once a week, then if she started counting 50 weeks ago, then it is possible,
