Mathematics, 27.10.2020 21:20 loveoneonly9153
Jerome’s teacher gave him a homework assignment on solving equations. Since he’s been thinking about saving for a used car, he decided to use the assignment as an opportunity to model a savings plan. He already has $500, and he plans to save $375 every month. To model the situation, he created this equation, where y represents the total amount saved for the car and x represents the number of months since he started saving: 500 + 375x = y. He then solved the equation to determine how many months he would need to save to have enough to purchase the car. Review his work, and select the error. Justification 1: given 2: addition property of equality 3: simplification 4: division property of equality 5: simplification 6: substitution, y = 3,500 7: simplification Step 1:500 + 375x = y Step 2:500 + 375x − 500 = y − 500 Step 3: 375x = y − 500 Step 4: = Step 5: x = Step 6: x = Step 7: x = 8
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The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.
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Jerome’s teacher gave him a homework assignment on solving equations. Since he’s been thinking about...
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