Answer:
The answer would be 'D'. 2 x 12 + 5h
Step-by-step explanation:
In this case, you know that Bradley mows two lawns and for every lawn, he charges $12. If you were not given the number of lawns mowed, you would've had something like 12x with 12 representing the charge for every lawn mowed and x representing the actual amount of lawns mowed. However, since you were given the amount of lawned mowed (2) you can put 12(2) or 12 x 2 instead of 12x.
With this, you can eliminate every answer that does not include 12 x2 or 2 x 12. (You can eliminate answers A and B)
Now for the number of hours for the bushes trimmed. The same rules apply to this.
The variable (h) would be included here since we were not given the information on how many hours it took. 5 represents the amount that he charges for every hour and h is the unknown amount. However, if we were also given the info for this like let's say 3 hours, it would be 5(3) instead of 5x. But that's a different story.
So with this let's combine the two terms. You have 2 x 12 and 5h so, in the end, you have: 2 × 12 + 5h
I hope my explanation wasn't too confusing. I tried my best to put it in simple terms
Step-by-step explanation:
x = price of 1 bush
y = price of 1 flower
12x + 30y = 240
7x + 10y = 125
the easiest approach is now to e.g. multiply the second equation by -3 and then add both equations, and then solve the result for x.
12x + 30y = 240
-21x - 30y = -375
-----------------------------
-9x 0 = -135
-9x = -135
9x = 135
x = 15
7x + 10y = 125
7×15 + 10y = 125
105 + 10y = 125
10y = 20
y = 2
so, each bush costs $15, each flower costs $2.
Answer:
5.0
Step-by-step explanation:
Answer:
360
Step-by-step explanation:
