Serena take 4 hours to set up the reception hall for an event. Caitlyn takes 5 hours to do the same job. How long will it take to set up the
reception hall if both of them work together? (round to the nearest
1/10):
It will take them [hours) hours working together.
Use formula: 1/A + 1/B= 1/T

What two consecutive odd integers have a sum of -28

Combine the information in the problem and the chart using the average balance method to solve the problem.

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next