Boost Your Pre-Algebra Skills with Examples and Solutions

High School
Algebra
Pre-Algebra

An item costs $4 before tax and $4.32 after sales tax. What is the sales tax rate?

UkusakazaL 2021-03-09

State true or false -3 > -13

Tobias Ali 2021-03-09

explain how you can tell from the form of the equation $\frac{1}{2} z^{2} = - 3$ that it has no solution.

CheemnCatelvew 2021-03-09

The local cafe uses 510 cups of mixed vegetables to make 1,000 quarts of beef barley soup. Each quart of soup contains the same amount of vegetables. How many cups of vegetables are in each quart soup?

beljuA 2021-03-09

In a gymnastics competition, Paiges

Dolly Robinson 2021-03-09

Provide an example of open intervals (a1, b1), (a2, b2), : : : , (an, bn), : : : such that intersection of (n=1 to n=infinity) (an, bn) = [0, 1).

sodni3 2021-03-09

Let a, b and c be a real numbers such that $a > 0, b < 0$ and $c < 0$ . Find the sign of each expression.
a) -a
b) bc
c) a-b
d) $a b + a c$

Brittney Lord 2021-03-08

The price of a family dinner was $48.00. A sales tax added 5% to the final bill. The family left a $10.08 tip. If the family included the sales tax when calculating the tip, what percent did the family leave?
A. 2%
B. 10%
C. 18%
D. 20%

Bevan Mcdonald 2021-03-08

Find the square root.
$- \sqrt{\frac{9}{25}} =$

Wotzdorfg 2021-03-07

Having difficulties with signed numbers when it comes to multiplication, division, addition and subtraction. Is there a simpler way to remember how to use the signs in math problems?

Anish Buchanan 2021-03-07

Personnel selection. Suppose that 6 female and 5 male applicants have been successfully screened for 5 positions. If the 5 positions are filled at random from the 11 finalists, what is the probability of selecting
(1) 3 females and 2 males?
(2) 4 females and 1 male?
(3) 5 females?

snowlovelydayM 2021-03-07

What ate the prime factors of each denominator of the unit fractions that have terminating decimals? 1/2, 1/4, 1/5, 1/8, 1/10, 1/16, 1/20, 1/25

texelaare 2021-03-07

Ariel's bedroom is 170in long, 135in wide, and 8.3 ft high. Her bedroom has two windows that measure 15 sq.ft. each and a door that measures 20 sq.ft. Ariel and her daughter, Melody, are going to paint Ariel's bedroom. It is given that 1 gallon of paint covers 150 sq.ft.How many gallons of paint are needed to paint the four walls and the ceiling of Ariel's bedroom with one coat of paint? Round your final answer to two decimals places.

facas9 2021-03-07

Dani says she is thinking of a secret number. As a clue, she says the number is the least whole number that has three different prime factors. What is Dani's secret number? What is its prime factorization?

Zoe Oneal 2021-03-07

Discuss/Explain why the value of $12 \cdot (\frac{1}{3}) + (\frac{2}{3})$ is $4 (\frac{2}{3})$ and not 12.

Brennan Flores 2021-03-07

A manufacturer of printed circuit boards has a theoretical capacity of 10 boards per day. The theoretical capacity utilization is 95% currently. What is current production?

melodykap 2021-03-07

Mark has a board that is 12 feet long. He cuts the board into 8 pieces that are the same length. How long is each piece?

glamrockqueen7 2021-03-07

The amount of error allowed in the size of structural steel is $\frac{1}{10}$ of 1%. If an I beam is 7.2 inches deep, what, in inches, is the amount of error allowed?

vestirme4 2021-03-07

Write the improper fraction as a mixed number. $\frac{14}{5}$

Ava-May Nelson 2021-03-07

Lodine - 131, a radioactive substance that is effective in localing brain tumors, a half-life of only eight days. A hospital purchased 22 grams of the substance but had to wail five days before it could be used. How much of the substance was left after five days?

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

Improve Your Algebra Skills with Practice Problems