Answer:
Step-by-step explanation:
The two rules are :-
15 - 10(n - 1)
25 - 10n
For the first one to find the total area you have to first find the area of the triangle 1/2(10x12.5)=62.5 and then the square (13.4x12.5)=167.5 which is 10468.75 totaled
Substitution:
6y + 5x = 8
x + 3y = -7
x = -3y + 7
6y + 5(-3y + 7) = 8
6y - 15y + 35 = 8
-9y + 35 = 8
-9y = -27
-y = -3
y = 3
x = -7 + 9
x = 2
y = 3
x = 2
33, take 45/5= 9 miles per gallon, then take 297/9= to get 33 gallons of gas
(4\7=0.57)
(65x3=195)
195+0.57=195.57-5=190.57
