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Model ratios, rates and percent changes: retrieval: a separate sample with explanations after your response.
Paper packet. Every task here also exists on screen, where it is checked automatically; answers written on paper are not assessed by Nydus. When you are back at a device, enter your answers there.
Model ratios, rates and percent changes: retrieval: attempt the ratios rates percents sample without worked examples. Use the target of each question to decide which information matters, and record your initial response before reading its explanation.
A deposit of 2000 grows by 10 percent each year with annual compounding and no transactions. What is its value after two years?
A price increases by 25 percent. By what percent must the new price decrease to restore the original price?
A worker completes 3/8 of a task in 45 minutes at a constant rate. How many minutes are required for the entire task?
A solution contains 12 grams of salt in 80 grams of solution. How many grams of pure water must be added to make salt 10 percent of the total mass?
Review the ratios rates percents decisions in this arithmetic sample. Identify the particular restriction or evidence that changed your answer, and return to the corresponding worked lesson before trying a new case.