Hello there!
8x = 2y + 5
3x = y + 7
Use the substitution property
We need to solve 3x = y + 7 for y
3x = y + 7
3x - y = 7
-y = 7 - 3x
Divide both sides by -1
-y/-1 = -3x -7/-1
y = 3x - 7
Substitute 3x - 7 for y in 8x = 2y + 5
8x = 2y + 5
8x = 2(3x - 7) + 5
8x = 6x - 14 + 5
8x = 6x - 9
8x - 6x = -9
2x = -9
x= -9/2
To find y, we need to substitute -9/2 for x in y = 3x -7
y = 3x - 7
y = 3(-9/2) - 7
y = -41/2
The correct answer is option A (-9/2; -41/2)
Good luck with your studies!
Answer:
X=19
Step-by-step explanation:
7x-8=6x+11
x=19
Maria got 21 correct.
Number wrong = Total - Number right
y = 25 - 21
y = 4
Maria got 4 wrong.
Hope this helps!
Answer:
It would create an enlarged figure.
Explanation:
A scale factor of
1
results in a figure of equal dimensions or an isometric figure.
A scale factor of less than
1
results in a figure of reduced dimensions .
A scale factor of greater than
1
would result in a figure of enlarged dimensions.
As
4
3
>
1
, it would create an enlarged figure.
Step-by-step explanation:
no se
sólo lo hago esto para poder preguntar
