Answer:
A) 3/7= 0.42857143. B) 9/14= 0.64285714
Step-by-step explanation:
Answer:
Median = 2
Step-by-step explanation:
Median is basically what's the middle of a set of data.
There's a total of 9 numbers:
1.5, 1.5, 2, 2, 2, 2.5, 3, 3.5, 4
The repeated 2nd 2, is the median in this set of data.
Answer:
modulus of complex number is 
Step-by-step explanation:
z=x+iy is a complex numbers
the given complex number is 5+2i
the value of x is 5 and y is 2
the modulus of complex number formula is
modulus of complex number is
Ok, let’s take it step by step.
Let x = number of gallons of 70% solution
100 = number of gallons of 25% solution
Then x + 100 = number of gallons of a 60% solution.
0.70x + 0.25(100) = 0.60(x + 100)
0.70x + 25 = 0.60x + 60
0.10x = 35
x = 350 gal
So, you can mix 350 gal of a 70% solution with 100 gal of a 25% solution to get 450 gallons of a 60% antifreeze solution.
