I think x = 5, because you need to find the ratio between the two triangles.
The triangle look late but you can bring it around
<span>The resent value, also called "discounted value," is the current worth of the camera. So, we know that the discounted value is $105.00.
The first price of the camera was $120.00.
This means that the price is decreased. In order to calculate the discount rate we should find out how many percent the camera was discounted. 105 from 120 is: 105/120*100=87.5
So, the discount is 100-87.5=12.5 %.
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To find the rate of change, we must find the unit rate, or the amount of savings added per month. To find this, we can divide the amount changed from month 4 to month 1 from the amount of months, resulting in (415-160)/3=85 as our rate of change. This means that every month, the amount of money in Brent's savings account adds by 85. Next, the initial value is the starting value, and that is how much money Brent has at month 0. After one month of saving, Brent has 160 dollars. However, he must have added 85 dollars from his starting amount to get 160 dollars after one month of saving. Therefore, 160-85=75 as our starting amount. This means that Brent started with 75 dollars in his account.
Feel free to ask further questions, and Happy Holidays!
