Boost Your Pre-Algebra Skills with Examples and Solutions

High School
Algebra
Pre-Algebra

A family is canoeing downstream (with the current). Their speed relative to the banks of the river averages 2.75 mi/h. During the return trip, they paddle upstream (against the current), averaging 1.5 mi/h relative to the riverbank.
a. Write an equation for the rate of the canoe downstream.
b. Write an equation for the rate of the canoe upstream.
c. Solve the system to find the family’s paddling speed in still water.
d. Find the speed of the current of the river.

ddaeeric 2021-03-07

Find the outcome of:
$10 f t 1 \frac{3}{8} i n - 7 f t 8 \frac{7}{16}$ in

snowlovelydayM 2021-03-06

Express the number in terms of i.
$\sqrt{- 144}$

Chesley 2021-03-06

A rope is cut into three pieces P, Q, and R. The lengths of the pieces are in the ratio 3:5:7. If the rope is 33 feet 9 inches long, find the length of P, Q, and R.

generals336 2021-03-06

The cash account is increased with a ....

coexpennan 2021-03-06

Ratio and Proportion: Concepts and Tricks The ratio is defined as the quantitative relation between two values showing the number of times one value contains or is contained within the other.The ratio in the mathematical term used to compare two similar quantities expressed in the same units. The ratio of two numbers ‘x’ and ‘y’ is denoted as x:y Fractions and ratio are same but the only difference is that ratio is unit less quantity but fraction is not.

FobelloE 2021-03-06

Kareem possesses 216 role-playing game cards. He wants to amass all 15 sets of cards.There are 72 cards in a set. How many more cards does Kareem need to reach his goal?

Jaya Legge 2021-03-06

Write three integers that do not all have the same sign that have a sum of -20. Write three integers that do not all have the same sign that have a sum of 10.

Yasmin 2021-03-06

Standard deviation is an indication of the...
a. precision of one measurement
b. accuracy of one measurement.
c. precision of repeated measurements.

Clifland 2021-03-06

Find $2 (\frac{5}{7}) + 1 (\frac{1}{4})$

Aneeka Hunt 2021-03-05

A number consist of two digits whose product is 8 . If the digits are interchanged, the resulting number will exceed the original one by 18 . Find the number.

preprekomW 2021-03-05

Larry came up a little short one month at bill paying time and had to take out a title loan on his car at Check Casher's, Inc. He borrowed $260, and 3 weeks later he paid off the note for $297.50. What was the annual simple interest rate on this title loan?

OlmekinjP 2021-03-05

explain what steps you would use to simplify $2 + 3 (9 - 5)$

lwfrgin 2021-03-04

Determine the level of measurement of the variable.
Favorite color
Choose the correct level of measurement.
A) Interval
B) Nominal
C) Ratio
D) Ordinal

CoormaBak9 2021-03-02

Solve this $\frac{1}{3} \div 9$

a2linetagadaW 2021-03-02

from the list $0, 14, \frac{2}{3}, π, \sqrt 7, - \frac{11}{14}, 2.34, - 19, \frac{55}{8}, - \sqrt{17}, 3.21,$ and -2.6, identify each of the following.

BenoguigoliB 2021-03-02

Rewrite the following as an equivalent logarithmic equation. $e^{3} = 20.0855$ An equivalent logarithmic for $e^{3} = 20.0855$ is ?

Nann 2021-03-02

Alex wants to calculate his term mark in mathematics. It is to be based on 6 assignments, all equally weighted. He scored 82%,74%,66%, 83%, and 75% on his first five assignments. What mark will Alex need on his sixth assignments in order to achieve a term mark of 80%?

Lipossig 2021-03-02

Studies indicate that drinking water supplied by some old lead-lined city piping systems may contain harmful levels of lead. Based on data presented by Karalekas and colleagues,it appears that the distribution of lead content readings for individual water specimens has mean $.033 m g / L$ and standard deviation $.10 m g / L$ . Explain why it is obvious that the lead content readings are not normally distributed.

Jaden Easton 2021-03-01

6 less than the quotient of z divided by 3

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