Anything times 1 = the same number so 696969x1=696969
Answer:
10
Step-by-step explanation:
first turn percent into decimal,
10/100 = 0.10
then multiply 100 x 0.10 = 10
so therefore 10% 0f 100 is 10
Answer:
Let x= number of games bowled.
Amount spent at Vista Bowl=2+3.5x
Amount spent at Pinz Bowl=5+3.25x
Setting these two equations equal to each other and solving for x will give you the number of games you can bowl to make the cost the same:
2+3.5x=5+3.25x setting equations equal
3.5x-3.25x=5-2 combining like terms
0.25x=3 simplify
(1/4)x=3 changing decimal into a fraction
x=(3)(4) multiply both sides by 4 to isolate the x
x=12 answer
Step-by-step explanation:
8.9
The equation for the grain size is expressed as the equality:
Nm(M/100)^2 = 2^(n-1)
where
Nm = number of grains per square inch at magnification M.
M = Magnification
n = ASTM grain size number
Let's solve for n, then substitute the known values and calculate.
Nm(M/100)^2 = 2^(n-1)
log(Nm(M/100)^2) = log(2^(n-1))
log(Nm) + 2*log(M/100) = (n-1) * log(2)
(log(Nm) + 2*log(M/100))/log(2) = n-1
(log(Nm) + 2*log(M/100))/log(2) + 1 = n
(log(33) + 2*log(270/100))/log(2) + 1 = n
(1.51851394 + 2*0.431363764)/0.301029996 + 1 = n
(1.51851394 + 0.862727528)/0.301029996 + 1 = n
2.381241468/0.301029996 + 1 = n
7.910312934 + 1 = n
8.910312934 = n
So the ASTM grain size number is 8.9
If you want to calculate the number of grains per square inch, you'd use the
same formula with M equal to 1. So:
Nm(M/100)^2 = 2^(n-1)
Nm(1/100)^2 = 2^(8.9-1)
Nm(1/10000) = 2^7.9
Nm(1/10000) = 238.8564458
Nm = 2388564.458
Or about 2,400,000 grains per square inch.
I'd say the bottom answer is the best answer
