Answer:
(0, 4 ) and (2, - 4 )
Step-by-step explanation:
(2)
3x + 4y = 16 → (1)
- 3x + 2y = 8 → (2)
Adding (1) and (2) term by term will eliminate the x- term
0 + 6y = 24
6y = 24 ( divide both sides by 6 )
y = 4
Substitute y = 4 into either of the 2 equations and solve for x
Substituting into (1)
3x + 4(4) = 16
3x + 16 = 16 ( subtract 16 from both sides )
3x = 0 , then
x = 0
solution is (0, 4 )
(3)
2x - 4y = 20 → (1)
5x + 4y = - 6 → (2)
Adding (1) and (2) term by term will eliminate the y- term
7x + 0 = 14
7x = 14 ( divide both sides by 7 )
x = 2
Substitute x = 2 into either of the 2 equations and solve for y
Substituting into (2)
5(2) + 4y = - 6
10 + 4y = - 6 ( subtract 10 from both sides )
4y = - 16 ( divide both sides by 4 )
y = - 4
solution is (2, - 4 )
The answer is $6.80.
The full price: $8.00 (100%)
The discount: 15%
The discounted price: x (100% - 15% = 85%)
Make a proportion.
$8.00 : 100% = x : 85%
x = $8.00 * 85% : 100% = $6.80
Answer:
28.0001
Step-by-step explanation:
im pretty sure
Answer:
download a graphing calc it helps a lot, just put the points and it tells u the slope and all that :)
Step-by-step explanation:
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Answer:
multiply 14.97 to .6 and that's your answer
Step-by-step explanation:
