Answer:
(x + 4) x 2
Step-by-step explanation:
x represents number of cookies Alice ate.
x + 4 represents the number of cookies Tim ate.
As Bob had eaten twice the number of cookies that Alice ate the expression should be
(x + 4) x 2
Answer:
9.21954445729
Step-by-step explanation:
A^2 + B^2 = C^2
7^2 = 6^2 = 85
The square root of 85 is...
9.21954445729
Subtract 5 from 45 which equals 40 so -8w can be alone. Then divide 40 by -8w you will get -5.
w=-5
The solution is -59
First you multiply the numbers witch will give you
14 - 62 -11
Then you subtract it all and get -59
Answer:
Step-by-step explanation:
As they are in proportion,
x +4 : x +12 :: x -1 : x + 5
Product of means = Product of extremes
(x + 12)(x -1) = (x +4)(x+5)
Use FOIL method for polynomial multiplication
x*x + x*(-1) + 12*x + 12*(-1) = x*x + x*5 + 4*x + 4*5
x² - x + 12x - 12 = x² + 5x + 4x + 20
Combine like terms
x² + 11x - 12 = x² + 9x + 20
x² + 11x - 12 - x² - 9x - 20 = 0
Combine like terms
x² - x² + 11x -9x -12 -20 = 0
2x - 32 = 0
2x = 32
x = 32/2
x = 16
