The mode is the score that occurs the most often and the median is the middle number when arranged in order.
7x + 5 = 8x - 25
- 5 = -8x -5
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7x - 8x = - 5 - 25
-1x = - 30
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-1 -1
x = 30
Answer:
A
Step-by-step explanation:
You can't square a negative number, so the number must be non real.
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)
Answer: $3.60 will be spent on the necklace.
Step-by-step explanation:
to solve this problem we have to divide the length of the necklace (30cm ) by the diameter of each bead (1.25) to obtain the number of beads needed for the necklace.
So, mathematically speaking:
30 cm / 1.25 cm =24 beads
Now, we have to multiply the number of beads by the cost of each one ($0.15).
24 x 0.15= $3.60
S000, $3.60 will be spent on the necklace.
- Katsuki Bakugou
