A matatu , which has a capacity of 14 passengers charges sh. 100 as fare from Nairobi to limuru which are 35 km apart. it can however carry 2 more passengers but at a penalty of sh. 50 at each of the 5 checkpoints. If the matatu consumes 1 litre of petrol for every 5 km , calculate a)how much is gained if the matatu does not overload

b) how much is lost if the matatu overloads. ( Take the price of 1 litre of petrol to be sh. 85)

step-by-step explanation:

where is the questions

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet