Just use the coefficients for each variable and put it in a matrix. Is the second question set equal to something? Because then you would put it in place as the question mark. (Did the pic come through?)
So the 3x3 matrix is made up of the coefficients and then to augment the matrix, you add another column at the end with the solutions. Good luck!
Answer: Ann read 34 pages that day
Step-by-step explanation:
Ann reads 10 pages of her book everyday
And with every free minute she has she can read 2 pages
With 12 free minutes that day we do the following:
Multiply 12 by 2 to get the number of pages she reads in that free time which equals 24.
Then we add that 24 to the 10 pages she will read regardless.
Which leaves us with 34 pages.
Hope This Helps! :)
The answer is negative twenty five. By the way, if that is you in the picture, you are beautiful.
I'm guessing you find the length of the hypotenuse using the pythagorean theorem.
a² + b² = c² a and b are the legs and c is the hypotenuse
15² + 8² = c²
225 + 64 = c²
289 = c²
√289 = √c²
17 = c
hope that helps, God bless!