21, cause if sarah had twice as mych she would have 42 and 42+21=63
Easily move nx to left and a to the right side
mx-nx=-2-a
take x common factor
x(m-n)=-2-a
divide by (m-n)
x=(-2-a)/(m-n)
that said
Answer:
M = 15
Step-by-step explanation:
To get m alone you need to subtract 4m by both sides
4m - 4m + 30 = 6m -4m
30 = 2m
Now last part is to divide 2 by both sides
30/2 = 2m/2
M = 15
Answer:
NO, because this angle is being expressed in degrees and not in radians (the formula needs the angle to be in radians)
Step-by-step explanation:
The arc formula is the following:
arc length = angle * radius
with the angle in radians.
So the answer is NO, because this value of angle (15 degrees) is being expressed in degrees and not in radians. To use the formula, we would first need to convert from degrees to radians:
2pi radians -> 360 degrees
x radians -> 15 degrees
x = 15 * 2pi / 360 = 0.2618 rad
Now we can use this angle to find the arc:
arc = 0.2618 * 9 = 2.3562 cm
Answer:
7. 35% of 160 = 56
160 + 56 = 216
There are 216 PTA members this year
8. $4,860
Step by Step: to find out what she pays in total, you have to find out what number is 4% of 4500, so you multiply .04 by 4500 to get 180. multiply that by two to get the total amount of interest he has to pay. then add it to the loan to get 4,860.
9. $2560
if 10%=256
then 10 times the amount 100% is 2560
10. 20/100 = 0.2
0.2 x 20 = 4
4 of the shops are ice cream shops.
Step-by-step explanation:
