1
— l( a+b)
2
It is the area of trapezium
1/4 (6x+2) - 3x= -1/2 - 4 +2x
-1/4 (6x+2) +3x= -1/4 -4 +3x
(6x+2) = -3/4 + 5x .
x = 10/7
Answer:
72
Step-by-step explanation:
If the rates d and c are flowers per day, we have ...
150/d = 120/c
d -c = 18
__
Multiplying the first equation by cd/30, we have ...
5c = 4d
Multiplying the second equation by 4 gives ...
4d -4c = 72
Adding these equations together, we get ...
5c +4d -4c = 4d +72
Simplifying and subtracting 4d leaves ...
c = 72
Charlie can plant 72 flowers per day.
The person went wrong on step 2
Should be
11 + (9)(3)= x
11 + 27= x
x = 38
