Use substitution to find the x-coordinate of the solution to each system.
7) -x + 5y = 19
y=-2x + 6
a-2 b) 2
c) 1 d) -1
8) -8x + 5y = -20
y=-3x + 19
a) -6 b) -4
c) 4 d) 5
9) 4x - 6y= 12
y = -2x - 10
a) 3
b) 7
c) infinite number of solutions
d) -3
10) y = x + 10
| 3x - y=-18
a) 4 b)-6
c) 8 d) -8

(7)  x = 1

(8) x = 5

(9) x = -3

(10) x = -4

Step-by-step explanation:

the correct answer is semicircle

step-by-step explanation:

the answer is semicircle because the shorter arc joining two points on the circumference of a circle is known as the minor arc, the larger arc is called the major arc, and a semicircle is a half circle, formed by cutting a whole circle along a diameter line.

hope i .

3-4

step-by-step explanation:

the answer is 3-4 because both 45 and 60 has a multiple of 15.

45/3=15

60/4=15

therefore the odds against selecting a red is 4-3