The sum of two numbers is 56, and their difference is 10. What are the numbers? ОА.
33 and 23
OB.
30 and 26
OC.
20 and 36
OD
20 and 30

Given :- Sum of the two numbers = 56Difference between the two numbers = 10To Find :- Two numbers Solution :-

Let the two numbers be 'm' and 'n'

Now we can get,

1) m + n = 56

2) m - n = 10

1) First we will solve the first equation,

m + n = 56

n = 56 - m

2) Now, solve the second equation,

m - n = 10

By substituting n = 56 - m we get,

m - (56 - m) = 10

56 - m - m = 10

56 - 2m = 10

-2m = 10 - 56

-2m = -46

m = - 46/-2

m = 23

Now, we will find 'n' by the equation 1 ,

n = 56 - m

n = 56 - 23

n = 33Hence, The two numbers are (A) 23 and 33 Let's verify :-

33 + 23 = 56

33 - 23 = 10

Hence, verified

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle