Answer:
a=25,b=-23
Step-by-step explanation:
f(x)=6x-5
a. f(5)=6(5)-5
f(5)=30-5
f(5)=25
b. f(-3)=6(-3)-5
f(-3)= -18-5
f(-3)=-(18+5)
f(-3)=-(23)
f(-3)=-23
Answer:
398.2 cm^2
Step-by-step explanation:
* ≈398.2 cm^2
800+16x=720+21x
80+16x=21x
80=5x
X=16
So 16 hours :)
First no. = x
Second no. = y
Equation Formation.
x = 2 y + 5
x - 2 y = 5.........equation (i)
x + y - 1 = 16
x + y = 17............. equation(ii)
Solving Equation
x + y = 17
x - 2 y = 5
⇅
3 y = 12
y = 4
x = 2 y +5
x = 2(4) + 5
x = 13
Answer = 4 , 13