48 is the answer my friend. x is 45 more than y. 3+45 is 48
To solve this problem you must apply the proccedure shown below:
The linear functions have the form y=mx+b
where m is the slope and b is the y- intercept
Therefore, you have:
1) The slope -6/5 and b=(0,8) is:
y=(6/5)x+8
2) You have 3x-2y=1. Then, you only have to clear y:
y=(3/2)x-1/2
3/5 of 30 is 90/5
3/5 of 30 is 18
so when it is 3/5 full then it has 18 gallons
The area of a trapezoid = (a + b)/2 x h
Where a and b are the lengths of the parallel sides and h is the perpendicular distance between them.
When (a + b)/2 x 6 = 30
then (a + b)/2 = 5
a + b = 10
Possible values for (a,b) are (4,6) (3,7) (2,8) (1,9) assuming a < b but (7,3) is also valid.
Any positive real value is possible so (4.8, 5.2) and (0.3, 9.7) are valid
In general {a,b both real: 0
Answer:
B
Step-by-step explanation:
i hope this helps
