Answer: a.
and b.
.
Step-by-step explanation:
Let as consider,
Volume (in gallons) of water in the container = v
The number of minutes = t
(a)
From the given graph it is clear that the line passing through the points (0,0) and (3,2). So, the equation of line is



Therefore, the required formula is
.
(b)
We have,

Multiply both sides by 3/2.



Therefore, the required formula is
.
Answer:
a. 2x + 4
Step-by-step explanation:
Four more than twice a number
Let x = unknown number
Four more than twice of x
Twice of x can be written as 2x
Four more than 2x
Four more can be written as + 4
We get 2x + 4
Answer: D
Step-by-step explanation:
21/17.5 = 18/15
So the triangles are similar by SAS.
Answer:
7
Step-by-step explanation: