Answer:
8ft is the diameter so the radius would be half of that, so it's 4ft. Now substitute
now solve 4^2=16 now multiply it by 3.14 (pi). 16×3.14= 50.24
<span>to isolate y first step as follows;
5x - 7y - 10
-7y = -5x -10 (change the 5x to this side as negative)
</span><span>then divide by -7 and you have
-7y = -5x + 10
--- --- ---
-7 -7 -7
then you havd:
y = 5/7x -10/7</span>
Answer:
±35
Step-by-step explanation:
sqrt(49*25)=sqrt(49)*sqrt(25)=±7*±5=±35
To get the solution, we are looking for, we need to point out what we know.
1. We assume, that the number 54 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 54 is 100%, so we can write it down as 54=100%.
4. We know, that x is 2.9% of the output value, so we can write it down as x=2.9%.
5. Now we have two simple equations:
1) 54=100%
2) x=2.9%
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:
54/x=100%/2.9%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.
7. Solution for what is 2.9% of 54
54/x=100/2.9
(54/x)*x=(100/2.9)*x - we multiply both sides of the equation by x
54=34.48275862069*x - we divide both sides of the equation by (34.48275862069) to get x
54/34.48275862069=x
1.566=x
x=1.566
now we have:
2.9% of 54=1.566
The answer: joe’s dad uses 2.5 boxes of pancake mix to make 20 pancakes.