Answer:
m=2
Step-by-step explanation:
Answer:
<h2>x = 1/8 , - 1</h2>
Step-by-step explanation:
8x² + 7x - 1 = 0
Rewrite 7x as a difference
That's
8x² + 8x - x - 1 = 0
Factorize
8x( x + 1) - ( x + 1) = 0
(8x - 1)( x + 1) = 0
8x - 1 = 0 x + 1 =0
8x = 1 x = - 1
x = 1/8
The solutions are
<h3>x = 1/8 , - 1</h3>
Hope this helps you
Answer:
7 $5 bills, 32 nickels
Step-by-step explanation:
Ok, so to solve this, we need to make two separate equations. If we say that x is the number of nickels, and y is the number of 5 dollar bills, adding up to $36.60, we can make the equations 0.05x + 5y = 36.60, and x + y = 39. Using substitution, we can say 0.05x + 5(39-x) = 36.60. This simplifies to 195-4.95x = 36.6. We can then say 158.4 = 4.95x, and x = 32. This means we have 32 nickels. As there are 39 total coins and bills, that means there are 7 $5 bills, and 32 nickels.
Answer : 30%
Step-by-step explanation:
Original Value = 10 New Value = 13, % Increase = ?
% Increase = 13-10/10 × 100%
% Increase = 3/10 × 100%
% Increase = 30% ( Answer)