Answer:1600
Step-by-step explanation:
75/1200=100/x
75x=120000
/75
×=1600
Answer:
the 4th one
Step-by-step explanation:
Answer:
First find the 30% of 5-liter cleaning solution.
3/10*5L=1.5L
We know 50% of 3L is 1.5.
If we add, the two bleach percentages, we get 3L of bleach.
When we add the two containers of cleaning solution, we get 8L.
The percentage of bleach in the mixture will be the ratio 3/8 expressed as a %.
3/8*100=37.5% of the cleaning solution will be bleach.
Answer: 37.5%
The histogram is especially useful in comparing mean and median values of a variable. We have that 5.5+6+7+10+7.5+8+9.5+9+8.5+8+7+7.5+6+6.5+5.5=111.5 Since there are 15 values, their mean is 111.5/15=7.43 which is very close to the mean. We also have that 7 onservations are lower than 7.4 while 8 are bigger than 7.4; hence, the diagram is rather balanced and not left-skewed. We cannot tell immediately which one is larger since the values are too close. Any such random process can usually be approximated to a greater or smaller degree by a normal curve; the more points, the better. The histogram shows this (it is kind of a discrete normal curve); all points except 4 will be in this interval of bars.
877.7 is the correct answer!
