Answer:
the solution is (-1, 2)
Step-by-step explanation:
Let's solve the system
(3x + 4y = 5)
(2x - 3y = -8)
using the method of elimination by addition and subtraction. Notice that if we multiply all terms of the first equation by 3 and all terms of the second by 4, y as a variable will temporarily disappear:
9x + 12y = 15
8x - 12y = -32
-----------------------
17x = - 17, so x = -1.
Replacing x in the second equation by -1, we get:
2(-1) - 3y = -8, or
2 + 3y = 8,
or 3y = 6. Thus, y = 2, and the solution is (-1, 2).
The answer is 6/48. You would multiply 3/8 by 1/3 across and get 3/24,then you multiply 3/24 by 2 and get 6/48
Answer: $39.60
Step-by-step explanation:
300/10 for one pair of boots is $30
30/100=x/132
x is the selling price
Cross multiply: 100x=3960
Divide: x=39.60
This is easy. You just add all the like terms
Answer:
See below ~
Step-by-step explanation:
<u>Perimeter</u>
- 2(6 + 8)
- 2(14)
- <u>28</u> units
<u>Area</u>
- 2(4 x 2) + 2(8)
- 4(8)
- <u>32</u> square units
