Answer:
20%
Step-by-step explanation:
1. We assume, that the number 1250 is 100% - because it's the output value of the task.
2. I assume, that x is the value we are looking for.
3. If 100% equals 1250, so we can write it down as 100%=1250.
4. We know, that x% equals 250 of the output value, so we can write it down as x%=250.
5. Now we have two simple equations:
1) 100%=1250
2) x%=250
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%=1250/250
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.
7. Solution for 250 is what percent of 1250
100%/x%=1250/250
(100/x)*x=(1250/250)*x - we multiply both sides of the equation by x
100=5*x - we divide both sides of the equation by (5) to get x
100/5=x
20=x
x=20
now we have:
250 is 20% of 1250
Answer:
-21
Step-by-step explanation:
If the equation of the line is
then 
is the slope of the line and 
is the y-intercept of the line.
In your case, the equation of the line is 
So, the slope of this line is 
and the y-intercept is 
Answer:
The circumference is found by multiplying Pi by the diameter is the true statement. All the others are lies! :)
Answer:
125 ft²
Step-by-step explanation:
We know that that surface area of the triangular prism that will be covered with insulation is equal to the area of the two triangular faces, plus the two lateral rectangular faces.
So you get:
SA = 2 [
(15)(15)] + 2 [(30)(15)] = 1,125 ft²
Answer:
(10, 14)
Step-by-step explanation:
To solve this system let's use substitution:
Solve the first equation for x, obtaining x = 24 - y, and then substitute 24 - y for x in the second equation:
3(24 - y) + 5y = 100
Performing the indicated multiplication, we get:
72 - 3y + 5y = 100
Combining like terms results in 72 - 100 = -2y, or -28 = -2y
Thus, y must be 14.
If y = 14, then the first equation tells us that x = 10.
Check: Is this true? 3(10) + 5(14) = 100 YES
The solution is (10, 14).
What was it about the questions on the best that you were supposed to compare to this solution?
