5% = 0.5
0.5n = 85
Divide by 0.5
0.5n = 85
/0.5 /0.5
n = 170.
The number is 170.
Answer: n + d = 30
0.05n + 0.10d = 2.20
^^ ur system of equations
Step-by-step explanation:
Answer:
Angle kjm is 56 °
you equate 7x with 3x +16
ie
3x + 16 = 7x
Answer:

Step-by-step explanation:
OK, so basically I'm pretty sure that you add all of them together and put it as a fraction over 3 so basically
then simplify it into 
X = k x y
21 = k x 3
k = 7
x = 7y
x = 7(10)
x = 70