Answer:
f(x)= -1 -x
Step-by-step explanation:
-1 -1= 0
-2-1=1
-3-1=2
-4-1=3
Answer:
5x-2y =80
x+y=30
Step-by-step explanation:
Basically, 5x is the points earned by correct questions (5 points per right answer) and -2x is the points lost by wrong answers (2 points taken away for every wrong answer). The total points the contestant earned is 80, which is why we set this equation equal to 80. Hence, 5x-2y=80.
They also tell us that the contestant answered a total of 30 questions, so x and y combined would be the total number of questions. Hence, x+y=30.
Answer:
The difference in unit prices of Jayden and Tia’s pack is $0.15
Step-by-step explanation:
Here in this question, we are interested in writing a statement describing the unit prices of both purchases.
For Jayden, 24 pack cost $7.20, thus one pack will cost 7.20/24 = $0.30
For Tia, the united price will be 2.70/6 = $0.45
So the difference in the unit prices of both will be $0.45-$0.30 = $0.15
Step-by-step explanation:
what are you asking??.............
First you simplify t/2.5=-5.2
Which is 0.4t=-5.2
Then we divide both sides by 0.4 which you get t=-13 as your answer so it's D