# Get help with equations, expressions, and inequalities

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Equation, expression, and inequalitie

### Two games went on for a total of 32 minutes. One game took 12 minutes longer than the other. How long did it take to complete each game?

Equation, expression, and inequalitie

### Solve the system of linear equations. x + y = 27 y = x + 3

Equation, expression, and inequalitie

### The mean distance of Earth from the Sun is $$\displaystyle{9.29}\times{1079.29}\times{10}^{{7}}$$ miles. The orbit of Earth around the Sun is circular and that 1 revolution takes 365 days. find the linear speed of Earth.

Equation, expression, and inequalitie

### Find the inverse of $$\displaystyle{f{{\left({x}\right)}}}=\frac{{{2}{x}}}{{{x}+{1}}}$$, if $$\displaystyle{x}\succ{1}$$.

Equation, expression, and inequalitie

### y=x+6 Find y when x is: 0. 3. 5. 8.

Equation, expression, and inequalitie

### Please, classify the following as an equation, an inequality, or an expression. $$\displaystyle\frac{{x}}{{2}}+{1}\le{3}{\left({x}+{7}\right)}$$

Equation, expression, and inequalitie

### Table shows the number of wireless service subscribers in the United States and their average monthly bill in the years from 2000 through 2015. $$\displaystyle{b}{e}{g}\in{\left\lbrace{m}{a}{t}{r}{i}{x}\right\rbrace}\text{Year}&\text{Subscribers}&\text{Average Monthly}\ \ \text{ }\ &\text{(millions)}&\text{Revenue per Subscriber Unit (\)}\ \text{2000}&\text{109.5}&\text{48.55}\ \text{2001}&\text{128.4}&\text{49.79}\ \text{2002}&\text{140.8}&\text{51.00}\ \text{2003}&\text{158.7}&\text{51.55}\ \text{2004}&\text{182.1}&\text{52.54}\ \text{2005}&\text{207.9}&\text{50.65}\ \text{2006}&\text{233.0}&\text{49.07}\ \text{2007}&\text{255.4}&\text{49.26}\ \text{2008}&\text{270.3}&\text{48.87}\ \text{2009}&\text{285.6}&\text{47.97}\ \text{2010}&\text{296.3}&\text{47.53}\ \text{2011}&\text{316.0}&\text{46.11}\ \text{2012}&\text{326.5}&\text{48.99}\ \text{2013}&\text{335.7}&\text{48.79}\ \text{2014}&\text{355.4}&\text{46.64}\ \text{2015}&\text{377.9}&\text{44.65}\ {e}{n}{d}{\left\lbrace{m}{a}{t}{r}{i}{x}\right\rbrace}$$ One of the scatter plots suggests a linear model. Use the points at t = 0 and t = 15 to find a model in the form y = mx + b.

Equation, expression, and inequalitie

### $$\displaystyle{3}\sqrt{{\frac{{1}}{{84}}}}$$

Equation, expression, and inequalitie

### Suppose you ask a friend to randomly choose an integer between 1 and 10, inclusive. What is the probability that the number will be more than 4 or odd? (Enter your probability as a fraction.)

Equation, expression, and inequalitie

### A sequence is generated by the recurrence relation $$u_n+1=7-2u_n$$ If $$u_2=5$$, what is the value of $$u_0$$?

Equation, expression, and inequalitie

### There are 5 women and 3 men waiting on standby for a flight to New York. Suppose 3 of these 8 people are selected at random, and a random variable X is defined to be the number of women selected. Find $$Pr[X = 2]$$.

Equation, expression, and inequalitie

### Suppose you ask a friend to randomly choose an integer between 1 and 10, inclusive. What is the probability that the number will be more than 4 or odd? (Enter your probability as a fraction.)

Equation, expression, and inequalitie

### How many 2-letter code words can be formed from the first 3 letters of the alphabet if no letter can be used more than once?

Equation, expression, and inequalitie

### A sequence is generated by the recurrence relation $$un+1=7−2un$$ If $$u_{2}=5$$, what is the value of $$u_{0}$$?

Equation, expression, and inequalitie

### Which of the following is NOT a regular polygon?

Equation, expression, and inequalitie

### $$\displaystyle{\left(\frac{{x}}{{4}}\right)}+{\left(\frac{{1}}{{2}}\right)}=\frac{{1}}{{8}}$$

Equation, expression, and inequalitie

### 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?

Equation, expression, and inequalitie

### Let $$\displaystyle{n}{\left({X}\cdot{Y}\right)}={24},{n}{\left({X}\cdot{Z}\right)}={15}$$, and $$\displaystyle{n}{\left({Y}\cdot{Z}\right)}={40}$$. Find n(X*Y*Z).

Equation, expression, and inequalitie