0.05n + 0.1d = 4.75
<span>d = 2n </span>
<span>0.05n + 0.1(2n) = 4.75 </span>
<span>0.25n *100 = 4.75 8100 </span>
<span>25n = 475 </span>
<span>25n/25 = 475/25 </span>
<span>n = 19 </span>
<span>d = 2n </span>
<span>d = 2(19) </span>
<span>d = 38
</span>
<span>dimes = 38 </span>
<span>nickels =19</span>
Answer:
The area is 12.56, and the circumference is 12.56.
Step-by-step explanation:
For the area,
We need to use the formula A=3.14*radius*radius
So we plug it in, and we get 3.14*2*2, which is 12.56 centimeters squared.
For circumference, we need to do,
C = 3.14*diameter
To find the diameter we need to do 2 (radius) x 2 which is 4
Plugging it in that would be 3.14 * 4 which is 12.56
So, in this case, the area is 12.56, and the circumference is also 12.56.
X = -1 is the answer to -2x2+x+8=0
Answer:
-8
Step-by-step explanation:
y2 - y1 / x2 - x1
-15 - 1 / 1 - (-1)
= -16 / 2
= -8
