Step-by-step explanation:
20 each because it's like tgat
3.75 divided by 3= 1.25
3.75-1.25= 2.50
The area equals length time width so 7.5 times 5.3 = 39.75.
Y=4.1 because it if take ten. And multiply it by three then take negative 9Y equals seven and divided by nine gives you 4.1
3x - y = 9
4x + y = 5
---------------add
7x = 14
x = 14/7
x = 2
3x - y = 9
3(2) - y = 9
6 - y = 9
-y = 9 - 6
-y = 3
y = -3
C. (2,-3) is a solution to the system of linear equations