Miss Robin distributed a bag of skittles to her students she gave each student five skittles then ate the 8 that remained in the
1 answer:
You might be interested in
<h3>Answer:</h3>
(x, y) = (7, -5)
<h3>Step-by-step explanation:</h3>It generally works well to follow directions.
The matrix of coefficients is ...
Its inverse is the transpose of the cofactor matrix, divided by the determinant. That is ...
So the solution is the product of this and the vector of constants [-6, -50]. That product is ...
... x = (3·(-6) +(-4)(-50))/26 = 7
... y = (5·(-6) +2·(-50))/26 = -5
The solution using inverse matrices is ...
... (x, y) = (7, -5)
Jack was planting a tree. He was to dig a hole that was 3 feet deep for every 5 feet of tree height. How deep should he dig the hole for a tree that is 17feet high.
Calculations
Cross multiplication
= 
5x = 2 x 13
Divide by 5 to isolate x
= 
x = 10.2
Answer = 10.2
Calculations
Cross multiplication
5x = 2 x 13
Divide by 5 to isolate x
x = 10.2
Answer = 10.2