Mathematics, 18.10.2020 21:01 paulawells11
Ian is borrowing $1000 from his parents to buy a notebook computer. He plans to pay them back at a rate of $60 per month. Ken is borrowing $600 from his parents to purchase a snowboard. He plans to pay his parents back at a rate of $20 per month.
a. Write an equation that can be used to determine after how many months the boys will owe the same amount.
b. Determine algebraically and state how many months it will take the two boys to owe the same amount and state the amount that they will owe at this time.
c. Can Ian pay off his loan in 16 months? Explain.
Answers: 2
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Farmers know that driving heavy equipment on wet soil compresses the soil and injures future crops. here are data on the "penetrability" of the same type of soil at two levels of compression. penetrability is a measure of how much resistance plant roots will meet when they try to grow through the soil. compressed soil 2.85 2.66 3 2.82 2.76 2.81 2.78 3.08 2.94 2.86 3.08 2.82 2.78 2.98 3.00 2.78 2.96 2.90 3.18 3.16 intermediate soil 3.17 3.37 3.1 3.40 3.38 3.14 3.18 3.26 2.96 3.02 3.54 3.36 3.18 3.12 3.86 2.92 3.46 3.44 3.62 4.26 use the data, omitting the high outlier, to give a 95% confidence interval for the decrease in penetrability of compressed soil relative to intermediate soil. compute degrees of freedom using the conservative method. interval: to
Answers: 1
Ian is borrowing $1000 from his parents to buy a notebook computer. He plans to pay them back at a r...
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