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Mrrafil [7]
3 years ago
11

A social networking site recorded that 80 per-cent of people who became members of the site one month were between 30 and 40 yea

rs old the equation below represents information where X represents the total number of people who became members of the site that month
x=0.8x +72

how many people who became members of the site that wants where between 30 and 4 years of age
Mathematics
1 answer:
77julia77 [94]3 years ago
3 0

Answer:

x=360          30-40 yrs =288

Step-by-step explanation:

multiple 72 by .05 (36) to find 10 percent, then multiple 80 percent by that number(36) then add both numbers together to get total number of members that month

(72x.05)=36x2+(.80x36)=288

288+72=360

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3 years ago
Find the area of the triangle formed by the origin and the points of intersection of parabolas y=− 1/3 (x−1)^2+8 and y=x^2−2x−3.
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Now, solving those two equations we will get the points of intersection.

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