Answer:
2:1 or 2
Step-by-step explanation:
<em>*** </em>(Ratios can be written as " a : b", or can be written as a fraction " a / b".
>> therefore 10/5 can be simplified to 2/1 )<em>***</em>
For every 10 notebooks, there are 5 ballpens.
Therefore, for every 2 notebooks there is 1 ballpen (The simplification).
<u><em>EXTRA: </em></u>
**Also remember that the ratio of notebooks to ballpens cannot be reversed into ballpen to notebook ratio, because this would change the meaning.
2/1 is not the same as 1/2 **
Answer:
38°
Step-by-step explanation:
The sum of angles that make a line is 180°; the sum of angles in a triangle is 180°. So, we have the following relations:
2x +y +A = 180
2y +x + B = 180
A +B +33 = 180
Adding the first two equations and subtracting the third, we get ...
(2x +y +A) +(2y +x +B) -(A +B +33) = 180 +180 -180
3x +3y -33 = 180
x + y - 11 = 60
x + y = 71
__
We know vertical angles are congruent, so in triangle QRK, we have ...
2y +2x +∠K = 180
∠K = 180 -2x -2y = 180 -2(x +y) = 180 -2(71)
∠JKL = 38°
Answer: A and D
Step-by-step explanation:28 x 43=860
20 x 3=60
860-60=800
20 x 40=800
all of this equals 860
The mean is the average of a set of numbers.
An outlier is a number that is significantly higher or lower than most of the data set.
So, therefore, when you are calculating your mean, the outliers in your data set sway your average higher or lower.
In these instances, the median is usually a better indicator of central tendency.
Answer:
24
Step-by-step explanation:
first you replace m with 3
like this:
2(3)2+12
then you multyply 2*3*2
and get this:
6*2+12
12+12
=24