Answer:
You obviously copied the question text in an incomplete and lazy way.
I still really wanna help you on your problem.
Please either point the whole question with the possible answers or make a photograph of the problem.
Answer:
66.8
Step-by-step explanation:
Try only multiplying 16 and 4, then 0.7 and 4, then add them all up.
Given that Noemi makes a bracelet that averages $0.60 per bead, we need to write an equation that models this average bead cost. This can be found by taking the total cost of the beads and dividing it by the number of beads used.
1. The total cost of the beads may be found by multiplying the price of each type of bead by the number used, and then adding these values together. Thus:
Total Cost = 0.75x + 3*0.3
= 0.75x + 0.9
2. Total number of beads = x + 3
3. Thus, the average cost is:
(0.75x + 0.9)/(x + 3)
4. Using the value of the average cost per bead given to us ($0.60), we can now write up the full equation:
0.6 = (0.75x + 0.9)/(x + 3)
+3 > +3
> 1
-10>. -10
-12 >1x
-12>x
(r -1 -2r) <= -2. Simplify.
r -2r <= -2 +1.
-r <= -1. Divide both sides by -1 and reverse the sign. Recall in inequality
when you multiply or divide by negative, the inequality sign is
reversed.
r >= -1/-1
r >= 1.
That's it.
