The amount of water decreases 
pints in 12 weeks.
Solution:
The amount of water decreases in 7 weeks = 
pints
The amount of water decreases each week is same.
Let us first change the mixed fraction into improper fraction.
pints = 
pints
The amount of water decreases in 1 week
So, the amount of water decreases in 1 week is 
pints.
The amount of water decreases in 12 week
pints
Hence the amount of water decreases pints in 12 weeks.
Step-by-step explanation:
x = number of multiple choice questions
y = number of short response questions
x + y = 15
5x + 10y = 100
=>
x + 2y = 20
let's subtract the first from the second equation :
x + 2y = 20
- x + y = 15
--------------------
0 y = 5
x + y = 15
x + 5 = 15
x = 10
to graph you need to consider both equations as linear functions. and you need to transform them into e.g. a slope intercept form : y = ax + b
a is the slope, b is the y- intercept.
x + y = 15
transforms to
y = -x + 15
this line goes e.g. through the points (0, 15) and (1, 14).
and
x + 2y = 20
transforms to
2y = -x + 20
y = -x/2 + 10
this line goes e.g through (0, 10) and (2, 9).
the crossing point of both lines is the solution and should therefore be the point (10, 5) as calculated above.
Answer:
True
Step-by-step explanation:
Answer:
b = -1.4
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Given
The ratio of mixture of sand and cement is 5:3
If the total volume of mixture is 
Suppose there is 5x and 3x cubic centimeter of sand and cement respectively i.e.
Sand 
So, there is of sand in the mixture
