Mathematics, 23.02.2021 01:40 401666

A contractor needs to buy nails to build a house. The nails come in small boxes and large boxes. Each small box has 100 nails and each large box has 350 nails. The
contractor bought a total of 9 boxes that have 2400 nails altogether. Write a system
of equations that could be used to determine the number of small boxes purchased
and the number of large boxes purchased. Define the variables that you use to write
the system.

Answers: 2

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 22:50

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table

Answers: 1

Answer

Mathematics, 22.06.2019 02:30

Researchers are conducting experiments to determine the role of alcohol in the development of depression. after the study is complete, they determine that the relative risk of developing depression is 1.55 with a 95 % ci of 1.2 -1.9. each group is then divided into nonsmokers and smokers. the relative risk for the nonsmokers is 1.12 with a 95% ci of 0.87-1.37. the relative risk for the smokers is 1.7 with a 95 % cl of 1.5-1.9. what type of bias may affect this study? a. procedure bias b. recall bias c. selection bias d. confounding e. lead-time bias

Answers: 2

Answer

Mathematics, 22.06.2019 02:30

3/4 + p = 1/2? i’m not sure how to solve it

Answers: 1

Answer

Mathematics, 22.06.2019 04:30

People end up tossing 12% of what they buy at the grocery store. assume this is the true population proportion and that you plan to take a sample survey of 540 grocery shoppers to further investigate their behavior. a. calculate the mean and the standard error for the sample proportion p. b. describe the sampling distribution of p in part a. draw a graph of this probability distribution with its mean and standard deviation. what is the probability that your survey will provide a sample proportion more than 15%? c. d. population proportion? what is the probability that your survey will provide a sample proportion within + 0.03 of the

Answers: 2

Answer

You know the right answer?

A contractor needs to buy nails to build a house. The nails come in small boxes and large boxes. Ea...

Questions