Answer:total cost= 20x+50 x= number of hours
Step-by-step explanation: Gooooooooooooogle
Intrest=principal*rate*time
500-350=150<---final interest
150=350*2.8*time
150=980*time
time=approx. 0.15years or 54.75 days
Answer:
its c because b is a right angle triangle
thats how i solved it if there is a mistake tell me
The answer is a 21/9-7/6=126-63/54. Tge answer is a 63/54
elimination means to get rid of one variable by altering the coefficients of variable (by multiplying and diving by some constant number)
in this case, if you just add the two equation, y gets cancelled you get 5x=20 or x=4
put it in any equation to get y (this works because both lines pass through the same point, so they must satisfy that point) to get y=2
