Chapter 1: Problem 5
In Exercises \(5-9,\) write in words the statement represented by the equation. $$ 2 x=16 $$
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Chapter 1: Problem 5
In Exercises \(5-9,\) write in words the statement represented by the equation. $$ 2 x=16 $$
These are the key concepts you need to understand to accurately answer the question.
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When you convert British pounds \((£)\) into US dollars (\$), the number of dollars you receive is proportional to the number of pounds you exchange. A traveler receives \(\$ 400\) in exchange for \(£ 250 .\) Find the constant of proportionality, give units for it, and explain its meaning.
(a) Write an expression for the total cost of buying 8 apples at \$a each and 5 pears at \(\$ p\) each. (b) Find the total cost if apples cost \(\$ 0.40\) each and pears cost \(\$ 0.75\) each.
Dennis is on a diet of 1800 Calories per day. His dinner is 1200 Calories and he splits the remaining Calories equally between breakfast and lunch. Write an equation whose solution is the number of Calories he can eat at breakfast, and find the number.
(a) Pick two numbers, find their sum and product, and then find the average of their sum and product. (b) Using the variables \(x\) and \(y\) to stand for the two numbers, write an algebraic expression that represents this calculation.
(a) Write an expression for the total cost of buying 8 apples at \(\$ a\) each and 5 pears at \(\$ p\) each. (b) Find the total cost if apples cost \(\$ 0.40\) each and pears cost \(\$ 0.75\) each.
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