Secondary
Calculus and Analysis
Precalculus
Calculus 1
Calculus 2
Algebra
Algebra I
Pre-Algebra
Algebra II
Geometry
High school geometry
Trigonometry
Statistics and Probability
High school statistics
High school probability
Math Word Problem
Other
Post Secondary
Algebra
Linear algebra
College algebra
Abstract algebra
Commutative Algebra
Statistics and Probability
College Statistics
Upper level probability
Calculus and Analysis
Integral Calculus
Multivariable calculus
Differential Calculus
Differential equations
Advanced Math
Discrete math
Upper Level Math
Register
Login
Ask Question
SECONDARY
ALGEBRA
PRE-ALGEBRA
EQUATIONS, EXPRESSIONS, AND INEQUALITIES
Secondary
Calculus and Analysis
Algebra
Algebra I
Pre-Algebra
Factors and multiples
Equation, expression, and inequalitie
Measurement
Reading and interpreting data
Decimals
Ratios, rates, proportions
Negative numbers and coordinate plane
Fractions
Equations, expressions, and inequalities
Algebra II
Geometry
Statistics and Probability
Math Word Problem
Other
Post Secondary
Didn’t find what you are looking for?
Ask question
Pre-Algebra: equations, expressions, and inequalities solving
All
Answered
Unanswered
Recent questions in Equations, expressions, and inequalities
Equations, expressions, and inequalities
ANSWERED
asked 2021-06-14
A disc jockey has to choose three songs for the last few minutes of his evening show. If there are nine songs that he feels are appropriate for that time slot, then how many ways can he choose and arrange to play three of those nine songs?
Equations, expressions, and inequalities
ANSWERED
asked 2021-06-08
In January, the average high temperature for Calgary is 9.9 °C greater than Winnipeg’s average high temperature. The sum of these two temperatures is -15.5 °C. What is the average high temperature in January for each of these two cities?
Equations, expressions, and inequalities
ANSWERED
asked 2021-06-01
The regular price for a pair of shoes is $48. The store is having a buy one get one 1/2 off sale. If you buy 2 pairs of shoes for that price, what percent discount is that?
Equations, expressions, and inequalities
ANSWERED
asked 2021-05-16
Where does the helix
\(r(t)=<\cos(\pi t), \sin( \pi t), t >\)
intersect the paraboloid
\(z = x^2 + y^2\)
?
(x, y, z) =
What is the angle of intersection between the helix and the paraboloid?
Equations, expressions, and inequalities
ANSWERED
asked 2021-03-07
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.
Equations, expressions, and inequalities
ANSWERED
asked 2021-03-01
6 less than the quotient of z divided by 3
Equations, expressions, and inequalities
ANSWERED
asked 2021-02-25
\(\displaystyle{\left(\frac{{5}}{{8}}\right)}+{\left(\frac{{11}}{{12}}\right)}\)
Equations, expressions, and inequalities
ANSWERED
asked 2021-02-25
An empty tank for storing water from a borehole has a volume of 480 m³. If it is filled by a pump that pumps water at a rate of 16 l/s, how many hours will it take the pump to fill this tank?
Equations, expressions, and inequalities
ANSWERED
asked 2021-02-25
Expand the equation:
(x+2)(x+3)
Equations, expressions, and inequalities
ANSWERED
asked 2021-02-24
x+5=-17
Find x
Equations, expressions, and inequalities
ANSWERED
asked 2021-02-21
8 b + 12 = 52
Equations, expressions, and inequalities
ANSWERED
asked 2021-02-09
A helicopter is 800 m above ground and descending at 55 m/min. An airplane is taking off and rising 80 m/min.
Equations, expressions, and inequalities
ANSWERED
asked 2021-01-19
Simplify by using order of operations:
\(\displaystyle\frac{{{10}-{3}\cdot{2}}}{{{1}+{1}}}\)
Equations, expressions, and inequalities
ANSWERED
asked 2021-01-06
Saw a board 8 ft 4 in. long into nine equal pieces. If the loss per cut is 1/8 in., how long will each piece be?
Equations, expressions, and inequalities
ANSWERED
asked 2021-01-05
Given:
\(\displaystyle{b}=\frac{{3}}{{4}}{a}\)
a+b=21
Find a and b
Equations, expressions, and inequalities
ANSWERED
asked 2020-12-25
A standard piece of paper is 8.5 inches by 11 inches. A piece of legal-size paper is 8.5 inches by 14 inches. By what scale factor k would you need to dilate the standard paper so that you could fit two pages on a single piece of legal paper?
Equations, expressions, and inequalities
ANSWERED
asked 2020-12-07
\(\displaystyle{\left({2.66}×{10}^{{13}}\right)}÷{\left({9.5}×{10}^{{5}}\right)}\)
Equations, expressions, and inequalities
ANSWERED
asked 2020-11-26
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?
Equations, expressions, and inequalities
ANSWERED
asked 2020-11-12
In August, Sports Depot had an average retail inventory of $145,256 and retail sales of $645,320. Find the stock turnover at retail.
Equations, expressions, and inequalities
ANSWERED
asked 2020-10-28
Choose an expression that is equivalent to 8a+4b-b.
...