Answer:
(8, 5) (Answer C)
Step-by-step explanation:
Write this system of linear equations in a (vertical) column:
4x - 3y = 17
5x + 4y = 60
Let's eliminate y through addition/subtraction:
Multiply 4x - 3y = 17 by 4, obtaining 16x - 12y = 68, and
multiply 5x + 4y = 60 by 3, obtaining 15x + 12y = 180. Then we have:
16x - 12y = 68
15x + 12y = 180
----------------------
31x = 248, and so x = 248/31 = 8.
Now find y. Substitute 8 for x in 5x + 4y = 60: 5(8) + 4y = 60, or
4y = 60 - 40 = 20.
Thus, y = 20/4, or y = 5.
The solution is (8, 5) (Answer C)
Answer:
35.12 ounces
Step-by-step explanation:
4.39*8 = 35.12 ounces
0.49 is the answer to 7% of 7.000
Answer:
16
Step-by-step explanation:
-8--------------------------0---------------------------8
imagine this is a straight line where you can measure the distances.
to get from -8 to 0 we have a distance of 8 units.
so, knowing this, now from 0 to 8 we have another distance of 8 units.
8+8=16
Distance is the absolute value, meaning that it'll always be positive.
