Step-by-step explanation:
(n-2)×180=3420
180n-360=3420
180n=3420+360
180n=3780
n=3780/180
n=21
that is, the number of sides is 21
to get the size of each exterior angle=
360/21
=17.14°
Speed=distance/time
You'll have to combine like terms.
36+14=50
1.5+0.75=2.25
And then you can use the formula.
50/2.25
Answer:
D) 5/12
Step-by-step explanation:
Suppose there are 30 girls at the school. Then the proportions tell you that 12 of them study music, and 5 of them study both music and dance.
Then 5 of the 12 girls who study music also study dance. That fraction is 5/12.
_____
We chose 30 because it is the least common multiple of the denominators of the fractions (2/5, 3/5, 1/6) in the problem statement.
Of course, you know that 2/5·30 = 12, and 1/6·30 = 5.
X = 0.882
y = 0.647
seems to be a good approximation of the solution.
We know that
An ordered pair is used to locate a point on a coordinate grid.
The first number in an ordered pair is the
x-coordinate, and the second number in an ordered pair is the
y-coordinate.
In this problem, the ordered pair is

so
the x-coordinate is equal to

the y-coordinate is equal to

therefore
Rule N 1The y-value is

times the x-value
Rule N 2The y-value is

greater than the x-value
Both are possible because their solutions include the ordered pair listed