1) The ratio table shows the amounts of sand and water in a concrete mixture. Which fraction represents the ratio for the gallons of water to bags of sand?
A)
B)
C)
D)

2) How many bags of sand should be mixed with 12 gallons of water?
A) 22 bags
B) 24 bags
C) 28 bags
D) 30 bags

Question:

The ratio table shows the amounts of sand and water in a concrete mixture. Which fraction represents the ratio for the gallons of water to bags of sand?

Solution:

Divide bags of sand by gallons of water

The ratio is the same

Which means,

Thus option D is correct

Question:

How many bags of sand should be mixed with 12 gallons of water?

Solution:

Let "x" bags of sand should be mixed with 12 gallon of water

From above found,

Hence, 28 bags of sand should be mixed with 12 gallons of water

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is