Answer:
45 kg = Bethan's share
105 kg = Jade's share
Step-by-step explanation:
Let 3x = Bethan's share
4x = Noah's share
7x = Jade's share
Since Noah's share was 60, then 4x = 60
x = 15
3(15) = 45 kg = Bethan's share
7(15) = 105 kg = Jade's share
Answer:
a system of linear equations with solution (x, y) = (1, -1)
Step-by-step explanation:
The two given linear equations in x and y are consistent and independent, so will have one solution. That solution is easily found using a graphing calculator. It is (x, y) = (1, -1).
_____
"What is ..." is a pretty open question with lots of different answers that won't be helpful. If you're seeking a specific answer, it would be nice to see the question say what answer you seek.
Answer: x = 19; y = 98
because 2 lines are parallel
=> y - 28 + 110 = 180
5x + 15 = 110
<=> y = 180 - 110 + 28
x = (110 - 15)/5
<=> y = 98
x = 19
Step-by-step explanation:
Answer: D. x= 20
Step-by-step explanation:
x + 5 + 7x -5 +x =180
9x=180 divide both sides by 9
x= 20
X + 6 = 8 + 7x
First, use the equality property to move the variable x to one side.
x + 6 = 8 + 7x
-x -x
You are left with: 6 = 8 + 6x
Use the equality property again
6 = 8 + 6x
-8 -8
-2 = 6x
Divide each side by 6: and your solution is -2/6, which simplifies to -1/3
In this example, Lisa is correct
