When calculating the average of individual data, you set of all observations of a given characteristic, usually in ascending order. The arithmetic mean for this series is calculated by summing the values of the observations and dividing the result by the number of observations.
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Answer:
Step-by-step explanation:
It would be X=2 because axis of symmetry is the line passing through X=2.
Step-by-step explanation:
When x=-3
7-2(-3)=7-(-6)
=7+6
=13
Answer:
times around the Earth
Step-by-step explanation:
we know that
(one million million)
The average size of an apple is approximately 8.3 cm
Convert to km
Multiply by 3.7 trillion apples
Divide by the circumference of earth (40,075 km)
In the x quarts of 2% fat milk, there is 0.02x quarts of fat.
in the y quarts of 4% fat milk there is 0.04y quarts of fat.
together, there is (x+y) quarts of milk, and 0.24 quarts of fat.
the equations are:
x+y=9
0.02x+0.04y=0.24
multiply the first equation with 0.02: 0.02x+0.02y=0.18
subtract this new equation from equaition 2 to eliminate x:
0.04y-0.02y=0.24-0.18
0.02y=0.06
y=3
x=9-3=6
x is twice as much as y.
He used twice as much as the 2% fat milk than the 4% fat milk.
so the first choice is the correct answer.
