Answer:
x=4, y=2
Step-by-step explanation:
2x - y = 6
x + y = 6
Add these together to eliminate y
2x - y = 6
x + y = 6
-----------------
3x = 12
Divide by 3
3x/3 = 12/3
x=4
But we still need y
x+y =6
4+y =6
Subtract 4 from each side
4+y-4 = 6-4
y=2
The exponential function with a base greater than 1 is
14(1.95)^x
Create equations using the given information
1) x+y=56
2) y=x-16
Substitute the value of y into the 1st equation and simplify
1)x+x-16=56
2x=72
x=36
Substitute the value of x into the 1st equation and simplify
1)x+y=56
36+y=56
y=20
Answer: 20 and 36
Answer: its B because it does not pass the vertical line test
First put the 20 fifths metres into something a little more recognisable:
20 x 1/5 metres
This is also 20/5 metres
And as 20/5 = 4, 20 fifths metres = 4 metres.
In each metre, there are 100 centimetres,
so 4 metres to 100 centimetres = 4 x 100 = 400 centimetres
So 20 fifths metres is 400 centimetres
