Answer:
A. n=70
Step-by-step explanation:
Let the number be n
According to the question
15+n=85
Subtract 15 from both sides
n=70
Hope it helps:-)
Answer:The three dimensional diagonal of a rectangular prism is:
d^2=x^2+y^2+z^2, and since this is a cube, x=y=z=s, and we are told that s=3
d^2=3s^2 and s=3
d^2=3(3^2)
d^2=3(9)
d^2=27
d=√27
⁴5 because you have have to add 21 and 24 up that's how you find the answer
First we need to find what is 20% off $23,999
1) = 20/100 x 23,999= $4,799
To find the decrease over 6 years :
2)= $4,799 x 6 = $28,798.8
Finally
= 28,798.8-23,999= $4,799.8
$4,799.8 is the final value.
Answer:
Step-by-step explanation:
Assume as a basis the final mixture is 1000 mL. That means 399 mL of alcohol
Let x = mL of Soln A and y = mL of soln B.
x = 2y.
Now x + y = 1000
and 0.2x + 0.17y = 399
but x = 2y so 0.4y + 0.17y = 399
0.57y = 399.
y = 700 mL (That is your mL of solution B)