Translate the problem situation to a system of equations. Do not attempt to solve.Anne has 18 coins in her pocket consisting of nickels and dimes only. The total value of the coins is $1.15. How many nickels and how many dimes does she have? (Let x represent the number of nickels and y represent the number of dimes.)
A. x + y = 18, 0.05x + 0.1y = 115
B. x + y = 18, 5x + 5y = 115
C. x + y = 18, 5x + 10y = 115
D. x + y = 18, 5x + 10y = 1.15
Answer: C
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For a certain automobile engine, the bore B, in inches, is related to the displacement D, in cubic inches, by the formula
.
A: Make a graph of D versus B. Include bore sizes up to 5 inches.B: What displacement corresponds to a bore of 3.21 inches?C: What bore corresponds to a displacement of 191 cubic inches?
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Round your answers to two decimal places if necessary.
What will be an ideal response?
Use Method I to simplify the complex rational expression.
A. k - 6
B. 
C. 
D. 
Decide whether the statement makes sense. Explain your reasoning.This time around the Democrats are redrawing the boundaries of the districts. It would be to their advantage to draw the boundaries in such a way that all districts have roughly the same number of Republicans.
What will be an ideal response?
Solve the problem.During a cold front in Alaska the temperature dropped 7°F each hour for 8 hours. Express the total drop in temperature as an integer.
A. 56°F B. -49°F C. -46°F D. -56°F