First you make common denominators, which would be 15, what you do to the bottom you have to do to the top so you take 4 times 3 and 2 times 5 so now its 12/15 and 10/15 now you subtract the top which would make it now 10/15 then simpilify down to 2/3. I hope this helps
Answer:
15
Step-by-step explanation:because u add them all up
Answer:x= 36 y= 67 and z=77
Step-by-step explanation: we have to write the equations from the data give in the exercise, this means :
First of all, x,y and z correspònd to the first, second and third angles, respectively.
The sum of the measures of the angles of a triangle is 180
can be written as x+y+z=180
The sum of the measures of the second and third angles is four times the measure of the first angle.
It can be written by: x+y=4z
The third angle is 10 more than the second
It can be written as z=y+10
By solving the equations systems the above values can be determined.
x+y+z=180
x+y=4z
z=y+10
Answer:
700/900
Step-by-step explanation:
There are 900 beans in total.
There are 700 white beans
The ratio of white beans to all the beans is 700/900 or 700:900