Answer:
Step-by-step explanation:
Let the number be 'x'
Reciprocal = 
Cross multiply
(x² + 1) *2 = 5*x
2x² + 2 = 5x
2x² - 5x + 2 =0
Factorize the equation,
Sum = -5
Product = 4
Factors = -1 , -4
2x² - x - 4x + 2 = 0
x(2x - 1) - 2(2x - 1) = 0
(2x -1 )(x - 2) = 0
2x - 1 = 0 ; x -2 = 0
2x =1 ; x = 2
x = 1/2
Number = 2 , and its reciprocal = 1/2
Answer:
Step-by-step explanation:
The base price is 10 dollars.
(10)
For every ride she goes on, Caroline must pay 2 dollars.
(2r)
So, add them together.
10 + 2r
For 8 rides, replace r for 8.
10 + 2 x 8
10 + 16
$26
Hope this helped, please mark Brainliest so that everyone can see
Answer:
Step-by-step explanation:
The answer is either 10:16 or 5:8
No (unless you're talking about a whole number), for example...
0.2^2 = 0.04
