Answer:
The answer is D
Step-by-step explanation:
180(6-2)
180 times 4
720
Answer:
20 is 80% of 25
Step-by-step explanation:
We assume, that the number 25 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 25, so we can write it down as 100%=25.
4. We know, that x% equals 20 of the output value, so we can write it down as x%=20.
5. Now we have two simple equations:
1) 100%=25
2) x%=20
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=25/20
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.
7. Solution for 20 is what percent of 25
100%/x%=25/20
(100/x)*x=(25/20)*x - we multiply both sides of the equation by x
100=1.25*x - we divide both sides of the equation by (1.25) to get x
100/1.25=x
80=x
x=80
Answer:
29
Step-by-step explanation:
Since they have given you x = 4, simply sub it into the equation,
(4)^2 + 3(4) - 7 + 8
= 29
Answer:
...
Step-by-step explanation:
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.
