Answer:
the mean of A and C is 10
Step-by-step explanation:
Given;
mean of A and B = 20
mean of B and C = 24
mean of A, B and C = 18
Recall; A = 40 - B
A = 40 - 34
A = 6
Also, C = 48 - B
C = 48 - 34
C = 14
Therefore, the mean of A and C is calculated as;
The common multiples of 3 and 5 are 15, 30, 45, 60, 75.
Answer:
∠ X = 30°
Step-by-step explanation:
Using the sine ratio in the right triangle
sinX = = = = = , then
∠ X = ( ) = 30°
1.
Let w be the number of weeks it takes for Konrad to have more than $72.
The equation we can derive is 57 + 3w > 72.
Then solve:
57 + 3w > 72
3w > 15
w > 5
Then w must be 6, which is the next number greater than 5.
2.
Let w be the number of weeks it takes Omar to have enough money for the car.
The equation we can derive is 1800 + 35w 2150.
Then solve:
1800 + 35w 2150
35w 350
w 10
Then w must be 10.
Area of a circle is :
Where r is the radius.
To find r, you divide the diameter by 2
Then,