Let us assume the first number to be = x
Let us assume the second number to be = y
Then
x^2 - y^2 = 5
x^2 = y^2 + 5
And
3x^2 - 2y^2 = 19
Multiplying the first equation by -2, we get
- 2x^2 + 2y^2 = - 10
Now subtracting the two equations, we get
x^2 = 9
x = 3
Putting the value of "x" in the first equation, we get
(3)^2 - y^2 = 5
9 - y^2 = 5
y^2 = 4
y = 2
I hope that the procedure is clear enough for you to understand and this is the answer that you were looking for.
Hi!
When we write a number in scientific notation, we write it like this:
N × 
N = a number between one and 10
x = negative if the decimal is moved to the right. positive if moved to the left.
Okay, so
we need to move the decimal in the number <span>0.0059
to the right to make it
between one and 10.
0.0059
00.059
000.59
0005.9
5.9N = 5.95.9 </span>×

Since we moved the decimal to the right 3 times,
x = -35.9 × 
^ the answer
Hope this helps! :)
Answer:
$0.80
Step-by-step explanation:
-3 (1x + 1y = 3.2)
3x + 1y = 8
----------------
-3x - 3y = -9.6
+
3x + 1 y = 8
-------------------
0x -2y = -1.6
÷ -2
-----------------
y = 0.8
one hamburger costs $0.80