 # Pre algebra questions and answers

Recent questions in Pre-Algebra a2linetagadaW 2020-11-26 Answered

### Two spelunkers (cave explorers) were exploring different branches of an underground cavern. The first was able to descend 198 ft farther than twice the second. If the first spelunker descended a 1218 ft, how far was the second spelunker able to descend? beljuA 2020-11-26 Answered

### Andrew and his father are scuba diving at -38 feet and Tackle Box Canyon has an elevation of -83 feet. Write an inequality to compare the depths. Explain the meaning of the inequality. Bergen 2020-11-24 Answered

### Mathematical Reasoning True or False? There exist irrational numbers with repeating decimals? There exists a natural number x such that for every naural number y? BenoguigoliB 2020-11-24 Answered

### You intend to estimate a population mean with a confidence interval. You believe the population to have a normal distribution. Your sample size is 28. Find the critical value that corresponds to a confidence level of 98%. (Report answer accurate to three decimal places with appropriate rounding.) $t\frac{a}{2}=$ Kaycee Roche 2020-11-24 Answered

### Below is data collected from the growth of two different trees over time. Each tree was planted in 1960, and the trees naivlingr 2020-11-23 Answered

### 0 - 10 = Reggie 2020-11-23 Answered

### Find the turnover rate at retail for a pottery shop if the beginning inventory at retail is $486,923 and the ending inventory at retail is$326,843. Sales for the period are $935,830. Tolnaio 2020-11-23 Answered ### pam is a rock climber. After she has climbed 30 m up a 45 m cliff, what fraction of the cliff must she climb to reach the top? glasskerfu 2020-11-23 Answered ### Penelope Schoenburgs overtime is figured on a 40 hour week. last week she worked 45.6 hours this week she worked 9.7 hours on monday 8.3 hours on tuesday 8 hours on wednesday 9.1 hours on thursday and 8.6 hours on friday how many overtime hours did she work in two weeks kuCAu 2020-11-23 Answered ### $\frac{1}{6}+\frac{1}{6}=$ York 2020-11-23 Answered ### If Erin earns$48,300.00 per year, estimate how much she earns per hour. Assume that she works 40 hours per week and 50 weeks per year. Tahmid Knox 2020-11-23 Answered

### Modeling: Draw models to represents $\frac{3}{4}$ and $2\left(\frac{3}{5}\right)$. Maiclubk 2020-11-22 Answered

### Which procedure(s) decrease(s) the random error of a measure-ment: (1) taking the average of more measurements, (2) calibrat-ing the instrument, (3) taking fewer measurements? Explain Reeves 2020-11-22 Answered

### A scuba diver dove from the surface of the ocean to an elevation of $-79\frac{9}{10}$ feet at a rate of - 18.8 feet per minute. After spending 12.75 minutes at that elevation, the diver ascended to an elevation of $-28\frac{9}{10}$ feet. The total time for the dive so far was $19\frac{1}{8}$. minutes. What was the rate of change in the diver's elevation during the ascent? Dottie Parra 2020-11-22 Answered

### Choose all of the fractions that represent one whole: $\frac{8}{8},\frac{4}{4},\frac{1}{4},\frac{1}{1},\frac{1}{2}$ remolatg 2020-11-22 Answered

### b. Use your data to calculate an experimental probability for each color. Write each probability in probability notation. Express each probability as a ratio and a percent P(Blue) = P(Green) = P(Yellow) = ka1leE 2020-11-22 Answered

### A phone company offers a monthly data plan for $10 a month. The plan includes 2 megabytes of data, and charges$0.10 per megabytes above the 2 megabytes of data. Write a piece-wise defined function for T(x), the cost for x megabytes of data used in a month. sjeikdom0 2020-11-22 Answered

### What does a z-score of –1.5 mean? A.The mean is 1.5 standard deviations less than the measurement. B.There is an error in the measurement. C.The measurement is 1.5 standard deviations less than the mean. D.The variance cannot be calculated because the z-score is negative. Chaya Galloway 2020-11-20 Answered

### Marianna is painting a ramp for the school play that is in the shape of a right triangular prism. The ramp has the dimensions shown. She will not pain the back or bottom surfaces of the ramp. Each can of paint covers 1,000 square inches. What is the fewest number of full cans of paint Marianna will need? Circle the minimum number of cans. nagasenaz 2020-11-20 Answered

### The weight of an object is given as $67.2±0.3g$. True or false: a) The weight was measured to be 67.2 g. b) The true weight of the object is 67.2 g. c) The bias in the measurement is 0.3 g. d) The uncertainty in the measurement is 0.3 g.

Getting your pre Algebra solved becomes much easier when you have all the answers to your questions by taking a closer look at the various examples dealing with Pre-Algebra subjects. We have intentionally collected the list of pre-algebra equations and various solving equations with decimals problems to help you see various examples that explain how certain solutions are found. Still, if something sounds unclear or you are concerned about some solution that has been provided, approach pre-algebra with reverse engineering approach (going backwards).