Answer:
20.
Step-by-step explanation:
20+(1/5)20=24
Answer:
70cm
Step-by-step explanation:
As she gave out the reds in groups of 13 and the blues in sets of 20, our answer has to be divisible by both of these!
think of it like finding the lowest common denominator for a fraction!
in this case, the lowest number both go into is 260 (13X20)
Given:
The figure of a right triangle ABC.
To find:
The trigonometric ratios
.
Solution:
Using Pythagoras theorem,





Taking square root on both sides.


So, measure of BC is 8 units.
Now,




Similarly,




And,




Therefore, the required trigonometric ration are
.
Since we have a unique value of x and y, it shows that the system of the equation is consistent and independent.
Given the system of equation expressed as:
3x + y = 3
x - 2y = 4
Solve simultaneosly;
3x + y = 3 ............. 1 * 1
x - 2y = 4 ...............2 * 3
_________________________
3x + y = 3
3x - 6y = 12
Subtract
y-(6y) = 3 - 12
7y = -9
y = -9/7
Substitute y = -9/7 into the equation to get x
x - 2y = 4
x - 2(-9/7) = 4
x + 18/7 = 4
x = 4 - 18/7
x = 3/7
Since we have a unique value of x and y, it shows that the system of the equation is consistent and independent.
Learn more here: brainly.com/question/20052273