Answer:
(3,2)
Step-by-step explanation:
2x-4=y
2y+3x=13
We substitute the y in. They already gave us the equation 2x-4=y simplified so you would just plug this into the other equation
2(2x-4) +3x=13 : *distribute*
4x-8+3x=13 : *combine like terms*
7x-8=13 * add the 8 to the other side*
7x=21 *divide*
x=3
So the y=2x-4 is what we added in the place of the y to subtract it and solve for x. The second step would be solving for y. So now that we have our answer, 3 we plug it into the other equation preferably.
2(3)-4 =y : 6-4=y : 2=y
We can check our answer by pugging both x and y into both equations to make sure they are right. The statement should be true.
2x-4=y 2(3)-4=(2) 2=2
2y+3x=13 2(2)+3(3)=13 13=13
The answer to the question is b
5 steps;
1) choose one of 6 colors
2) with or without conditioning
3) with or without automatic transmission
4) with or without power windows
5) with or without cd player
Answer:
I think the reference ratio given is wrong so the right one is
8:508:508:5
Step-by-step explanation:
Given that,
8:58:58:5
We want to find which of the option is equivalent to the given ration
Option A.
16:1016:1016:10
Divide each of the ration by
Then,
16÷2:1016÷2:1016÷2:10÷2
8:508:508:5
Option B
50:8050:8050:80
Divide through by 10
50÷10:8050÷10:8050÷10:80÷10
5:805:805:8
Option C
48:3048:3048:30
Divide through by 6
48÷6:3048÷6:3048÷6:30÷6
8:508:508:5
Option D
32:2032:2032:20
Divide through by 4
32÷4:2032÷4:2032÷4:20÷4
8:508:508:5
Option E
64:3564:3564:35
Divide through by 8
64÷8:3564÷8:3564÷8:35÷8
This doesn't have a factor
So the ratio still retain
64:3564:3564:35
So to analyse the solution,
I believe the reference ratio given is wrong, so I think the reference ratio about be 8:508:508:5
So, from the option, the equivalent to the given ratio are options A, C, and D
