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...
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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...
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#### 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 Algebra 1

04/07/20

#### an 8-ounce mixture of nuts consists of p ounces peanuts and c ounces of cashews

#### 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...
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10/17/19

#### 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.

#### A banker invested a portion of 10,000 at 5% interest per year and the remainder at 4% interest per year. If the banker received 470 in interest after one year how much was invested at each rate

Should be self explanatory:)

Variables Algebra 1

07/10/19

#### One number is seven more than 10 times the another number. If the two numbers are added, the result is 95. Find the smaller number.

#### 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...
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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...
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#### 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...
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Variables Algebra 1

01/27/19

#### Suppose Martin travels x kilometres in 3 hours at a certain average speed. How many kilometres in terms of x will Martin travel in 5 hours at the same average speed?

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 ?

#### 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 ?

#### 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...
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#### 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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