Answer:
John got 94 marks
Step-by-step explanation:
average = total numbers/ no. of students
77= x/16--------------1
78=x+y/17------------2
From 1 : x= 77*16= 1232--------------3
From 2: x+y= 78*17= 1326---------4
subtracting 3 from 4
y= 1326-1232= 94
<span>x(t)=2t
y(t)=t^2
A) (-4,4),
x(t)=2t=-4, t=-2
y(-2)=(-2)²=4 , True
</span>B) (-2,-4)
x(t)=2t=-2, t=-1
y(-1)=(-1)²=1 False. we have y=-4
C) (0,0)
x(t)=2t=0, t=0
y(0)=(0)²=0 True
D)(1,2)
x(t)=2t=1, t=1/2
y(1/2)=(1/2)²=1/4 False. we have y=2
E) (6,9)
(-2,-4)
x(t)=2t=6, t=3
y(3)=(3)²=9 True.
Correct answers is A, C, E.
Answer:
5 meters : 1 gallon
fuel efficiency of Car is 7 meters per gallons
Step-by-step explanation:
Given Tanya car goes 45 meters on 7 gallons.
In terms of ratio of distance traveled and fuel consumed
45 meters : 7 gallons
since both 45 and 7 are multiple of 7 dividing both side by 7
45/7 meters : 7/7 gallons
5 meters : 1 gallon
Thus, fuel efficiency of Car is 7 meters per gallons.
A, because the equation shows that G is opposite number for P.
You need to put a picture of the graph in the question and I can answer it.
