Answer:
1180
Step-by-step explanation:
(42×28)+4 =x
x= 1180
Mean=total/the number of values =>total=mean*the number of values
the total of the first set of 8 numbers is : total=8*8=64
the total of the second set of 12 numbers is: 12m
the total of the 20 numbers is: 64+12m
the mean of the 20 number is: (64+12m)/20=5
solve for m: 64+12m=100
12m=36
m=3
Answer:
slope = -4/5 y-intercept = 1
Step-by-step explanation:
y = -4/5+1
Answer:
use m a t h w a y
really easy to use
works for all algebraic equations
Step-by-step explanation:
Answer:
Step-by-step explanation:
The water has to be 100% - 60% = 40%
100% represents both water alcohol (I think that's what you meant).
40% of 250 = 40/100 * 250 = 10000/100 = 100 mL
So 100 mL = water
150 mL = alcohol.
