Answer:
x = 21
Step-by-step explanation:
3x - 23 = 40
Collect like terms
3x = 40 + 23
3x = 63
Divide through by 3
3x/3 = 63/3
Check
since x = 21
3(21) - 23 = 40
63 - 23 = 40
40 = 40
7 1/3 inches
2 (1 3/4 + 1 11/12)
9+11
3/4+11/12= -------------
12
20/12
=1 2/3+ 2
2(3 2/3)
= 7 1/3
45% of 450 is 202.50
$202.50 is the price of markup
$652.50 is the selling price
