Agardener buys two kinds of fertilizer. fertilizer a contains 60% filler materials by weight and fertilizer b contains 40% filler materials by weight. together, the fertilizers bought by the gardener contain a total of 240 pounds of filler materials. which equation models this relationship, where x is the number of pounds of fertilizer a and y is the number of pounds of fertilizer b?
a) 0.4x + 0.6y = 240
b) 0.6x + 0.4y = 240
c) 40x + 60y = 240
d) 60x + 40y = 240

The correct answer is option B.

Step-by-step explanation:

The number of pounds of Fertilizer A = x

Percentage of fillers in Fertilizer A = 60%

Amount of fillers in of Fertilizer A= 0.6x

The number of pounds of Fertilizer B = y

Percentage of fillers in Fertilizer B = 40%

Amount of fillers in of Fertilizer B= 0.4y

Total amount of fillers bought by gardener = 240 pounds

Equation models this relationship: 0.6x + 0.4y = 240

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068