Answer:
x = 40
Step-by-step explanation:
The ADF is 90 degrees so the CAF will also be 90
So you do
( x + 15 ) + 90 + 35 = 180
x + 15 + 90 + 35 - 90 = 180 -90
x + 15 + 35 = 90
x + 15 + 35 - 35 = 90 - 35
x + 15 = 55
x + 15 - 15 = 55 - 15
x = 40
I'd do 9x4=36 because the 9 is from your money and the 4 is from your books. Now since you want to find out how much 4 books cost you just multiply that by 9
-(-3 - 2) + (-5)
First solve inside the parentheses.
-(-5) + (-5)
Note the double negative sign in the front changes the -5 to a positive 5. Now your equation is:
5 + (-5) which is the same as 5 - 5.
So your answer is 0.
Hey.. I know you haven’t been able to find much help, but if you are still struggling this might help.
Try to set it up as an equation for example 25x +25=10x +15 and rewrite it in standard form and see if that helps
Let the numbers be x and y.
by the first statement of the question, we get , x + y = 30.,,..(1)
by the second satement, we get , x = y+ y => x=2y... (2)
from equation (2), let us put the value of x in equation (1),
x + y = 30
=> 2y + y = 30
=> 3y = 30
=> y =30/3
=> y = 10
and x=2y => x = 2*10 = 20
in short, the numbers are 10 and 20
