6x + 3x = 36
6x+ 3x = 9x
9x = 36
X= 4
$6 for each shirt
4 shirts for $24
$3 for each shirt
4 shirts for $12
24+ 12 = 36
Adding all the marks and dividing them by the total no. of students to get the average marks.
Avg. marks = (7+8+7+9+6)/5
Avg. marks = 37/5
Avg. marks = 7.4
Y = -2x - 9
(-5,1)
y = -2(-5) -9
y = 10-9
y = 1
1 = 1
A/ Yes
Answer:
b=-6.8
Step-by-step explanation:
multiply both sides by -2 to get rid of the denominator.
1/2*1/2 is 1/4*1/2 is 1/8. 3/2 divided by 2/3 is the same as 3/2*3/2 which is 9/4, plus 1/8 is 19/8 or 2 3/8
