Answer:
Step-by-step explanation:
Let
C -----> the total cost of the arrangement
D ----> the cost of each rose
we know that
The total cost of the arrangement is equal to the cost of one rose multiplied by 16 plus the cost of the vase
so
The equation that Lin should use to find the total cost of each arrangement is
Answer:
• First assign any label to the equations:
• Multiply equation (a) by 3
• Sum up the result with equation (b)
Answers:
No solutions
Answer: Tyler mowed the lawn 4 times
Step-by-step explanation:
Let x = number of times that he does laundry
Let y = number of times that he mows the lawn
In one month, he does the laundry 6 more times than he mows the lawn. This means
x = 6 +y
Tyler's parents pay him $ 0.75 to do the laundry and $ 1.75 to mow the lawn. If his parents pay him $ 14.50 that month, it means that
0.75x + 1.75y = 14.5 - - - - - - -1
Substituting x = 6+y into equation 1, it becomes
0.75(6 + y) + 1.75y = 14.5
4.5 + 0.75y + 1.75y = 14.5
0.75y + 1.75y = 14.5 - 4.5
2.5y = 10
y = 10/2.5 = 4
x = 6 + y = 6 + 4
x = 10
