Boost Your Pre-Algebra Skills with Examples and Solutions

High School
Algebra
Pre-Algebra

State the global performance measurements and operational performance measurements and briefly define each. How do these differ from traditional accounting measurements?

glasskerfu 2020-10-23

Find the present value of the ordinary annuity.
If the amount of $500 of deposit in an account annually with an interest rate $9 %$ per year for 25 years.

Ayaana Buck 2020-10-23

7% sales tax on a $156.00 camera, find: sales tax:, total cost:

Chesley 2020-10-23

Desiree drove north for 30 minutes at 50 miles per hour. Then, she drove south for 60 minutes at 20 miles per hour. How far and in what direction is Desiree from where she started?

Efan Halliday 2020-10-23

Is $\frac{4}{\frac{6}{7}} = 4$ ?

sjeikdom0 2020-10-23

If you solve a work-rate problem and your solution, which represents the amount of time it would take working together, exceeds the individual working alone times that are given, then how do you know your solution is unreasonable? Explain.

Ayaana Buck 2020-10-21

On average, there are 3 accidents per month at one intersection. We need to find out what is the probability that in any month at this intersection
a) What if there are 5 accidents?
b) What if there are less than 3 accidents?
c) What if there are at least 2 accidents?

Globokim8 2020-10-20

Consider the quantity $a^{2} - b^{2}$ where a and b are real numbers.
(a) Under what conditions should one expect an unusually large relative error in the computed value of $a^{2} - b^{2}$ when this expression is evaluated in finite precision arithmetic?
(b)cWs 4-digit (decimal) rounding arithmetic to evaluate both $a^{2} - b^{2} a n d (a + b) (a - b) w i t h a = 995.1 a n d b = 995.0 .$ Calculate th relative error in each result.
(c) The expression $(a + b) (a - b) i s a l g e b r a i c a l l y e q u i v a l e n t t o a^{2} - b^{2},$ but it is a more accurate way to calculate this quantity if both a and b have exact floating point representations. Why?

remolatg 2020-10-20

Compute the following binomial probabilities directly from the formula for $b (x, n, p)$ :

a) $b (3, 8, 0.6)$

b) $b (5, 8, 0.6)$

c) $P (3 \leq X \leq 5)$

when $n = 8$ and $p = 0.6$

d) $P (1 \leq X)$ when $n = 12$ and $p = 0.1$

Yulia 2020-10-19

A nut wholesaler sells a mix of peanuts and cashews.
The wholesaler charges $2.80 per pound for peanuts and $5.30 per pound for cashews.
The mix is to sell for $3.30 per pound.
How many pounds of peanuts and how many pounds of cashews should be used to make 100 pounds of the mix?

Braxton Pugh 2020-10-19

Write each answer: a) $\frac{3}{5} - (\frac{1}{4})$

FizeauV 2020-10-18

Write an algebraic expression for: 6 more than a number c.

Josalynn 2020-10-18

Find the quadratic function that is best fit for f(x) defined by the table below

$\begin{array}{cc} X & f (x) \\ 0 & 0 \\ 2 & 401 \\ 4 & 1598 \\ 6 & 3595 \\ 8 & 6407 \\ 10 & 10, 009 \end{array}$

banganX 2020-10-18

At the beginning of a laboratory experiment, the temperature of a substance is $- {12.6}^{\circ} C$ . During the experiment, the temperature of the substance decreases ${7.5}^{\circ} C$ . What is the final temperature of the substance?

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).

Pre-Algebra