Answer:
A.) 65x + 35X + 50 = 250
65x = cost of concrete per cubic yard, x is yd³
35X = cost of pouring/finishing concrete per cubic yard, X is yd³
50 = delivery cost
250 = the money you have
B.) 400 + 15n = 505
15n = amount of money you deposite per week, n is # of week
400 = some money in account after n week passed
505 = initial money in bank
C.) 1.1X - 10 = 55
55 = total cost of clothes
1.1X = tax rate where X is the undiscounted clothe cost
10 = discount
277(10+2)=277(12)=277x12=3324
the answer is associative property of addition
Step-by-step explanation:
the things is no matter how you switch out the numbers you will have the same income.
you just post the question and people answer
28 - 7 = -3k
21 = -3k
21/-3 = k
k = -7
x/5 = 3 + 17
x/5 = 20
x = 5*20
x = 100
82 - 12 = 7G/10
70 = 7G/10
70*10 = 7G
700 = 7G
700/7 = G
G = 100
