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158 Answered Questions for the topic Variables

06/16/20

Math Linear Equations, Finding two variables

A test has twenty questions worth 100 points. The test consists of True/False questions worth 3 points each and multiple choice questions worth 11 points each. How many multiple choice questions... more
Variables Precalculus Algebra

05/04/20

A Mixture of Chocolate

A grocer sells milk chocolate at $2.70 per pound, dark chocolate at $4.60 per pound, and dark chocolate with almonds at $5.60 per pound. He wants to make a mixture of 50 pounds of mixed chocolates... more
Variables Calculus Exponents

04/23/20

Stuck on Calc Question

Hello! I am stuck on this problem and am maybe overthinking it. I need to find t^(4)(n) for the function t(n)=3n^(-1/3) + 2n^(5/3)
Variables Fractions Isolating

12/26/19

isolating denominator with fractions on both sides and all variables

S/B = M/F Solve for B, I've spent the last few hours watching videos and trying to find someone who can explain how to do this but for some reason I can't find any good explanations. I've just... more

How do you find a variable in an equation?

2x+3x+(-14) = 34+2x-14 True or False and how do you find these variables step by step?

10/06/19

The total rainfall for two days was 11.9 inches. The first day's total was 5.4 inches less than the second day's. How much rain fell on each day?

I was thinking of addition and subtraction being included in this question. Please help me. I know variables are included.

10/01/19

Solve the literal equation for the variable: r+zb=m

In the equation, solve for z.

10/01/19

Solve each literal equation for the variable: e-a/4=k

In the equation, solve for a.
Variables Math Algebra 1

06/14/19

My question is : 9y-8x=2ny+7

for the ny part, I don’t know how to separate the two to get rid of the n.... show steps pls I need to see if I’m solving it right. Thx

05/10/19

How do I find the two variables and what is the objective function?

The employees of a warehouse work 8-hour shifts. There are two different shifts the employees can work, the day shift from 8AM to 4PM or the second shift from 2PM to 10PM. Employees earn $11.50 per... more
Variables Sas

04/12/19

How to read variable names in a SAS data set?

Are there any statements\\functions capable of get the name of variables? Preferrably putting them into a column of another data set, a text field or a macro variable. **E.g.** **- Data set... more
Variables Python Exception

04/03/19

How do I check if a variable exists?

I want to check if a variable exists. Now I'm doing something like this: try: myVar except NameError: # Do something.Are there other ways without exceptions?
Variables Solar Oven

02/24/19

What is the constant,Independent Variable, and Dependent Variable in the making of a solar oven

What is something that will not change in the experiment, What is something that is changed or controlled in a scientific experiment, and What is something that will be tested and measured in a... more
Variables Math Algebra 1

01/25/19

What is x/5 + 3 = 2

01/11/19

What is the y coordinate of the solution of the system?

What is the y coordinate of the solution of the system?x+5y=73x- 4y=40What is the value of x ?
Variables Algebra 2 Solve

01/11/19

What is the y coordinate of the solution of the system?

What is the y coordinate of the solution of the system?4x-y=-21y=x+6What is the value of y ?
Variables

12/11/18

How old am I if 500 reduced by 3 times my age is 221?

Please help I am confused.
Variables Math Equations

12/08/18

Determine the solution to the system pf equations below? (Substitution)

------------ x=9+y x+4y-6------------

10/10/18

Need to understand a simplification problem for a literal algebraic equation

Quite a simple question to be honest. I am trying to solve R = (D+a-b) /b for b.An online tool that I have been using to help me out states that the first step in solving this equation is to... more
Variables Exponents Functions

09/25/18

When substituting a variable in a term with an exponent, how do I write and solve it?

IE: -2x^2 Do I do: -2(x)^2, -2(x^2) or (-2x)^2 I say this because of a problem I have that says "h(x)=-4x^2 -2x+5"
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