179 Answered Questions for the topic Solve Equation

10/05/18

#### f=((((1+r)^n)-1)/r)c. I can't solve this for r

f = c (1+r)n -1
. r
A description of the formula is here:
https://www.investopedia.com/walkthrough/corporate-finance/3/discounted-cash-flow/annuities.aspx
I'm trying to...
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09/30/18

#### I’m not sure how to solve this problem

A scale model of an antique car uses a scale factor of 1:18. If the wheels on the model car have a diameter of 1.5 inches, what is the diameter of a wheel on the actual car? What is the length of...
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08/23/18

#### word problem

write an equation, and then use the equation in the solving process. An economist predicts that the buying power B(x) of a dollar x years from now will be given by the formula B(x) = 0.99x. How...
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08/03/18

#### i worked this problem already but my teacher said im wrong.

A turbo-jet flies 50 mph faster than a super-prop plane. If a turbo-jet goes 2000 mi in 3 hr less time than it takes the super-prop to go 2800 mi, find the speed of each plane.

06/25/18

#### The length of a rectangle is 1 meter more than twice it’s width. What is the length of the rectangle if it’s perimeter is 110 meters?

find the missing length

04/15/18

#### A rectangular photograph has an area of 66 square inches. If the width of the photograph is 5 inches less than its height, find the dimensions of the photograp

I do not understand how to find the width and length for the problem.

03/21/18

#### Objest Velocity

If an object has a constant velocity of mach 5.0, how many seconds (X Sec) would it take to travel 225 feet?

02/24/18

#### Inequations

Inequations, Solve:
w / 6 + 2w + 5 / 3 > 4
/ is the fraction line. i dont know how to approach this i might be doing something wrong
i keep getting
w > 14/13also the answers...
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02/15/18

#### 24 is divided into two parts so that their product is128. Find the two parts.

working out please

11/14/17

#### A type of bacteria with 50 bacteria and doubles every hour. write an exponential expression to determine the number of bacteria in 5 hours.

Solve the expression of the number of bacteria.

10/11/17

#### If x varies directly as y, and x = 8 when y = 24, what is the value of x when y = 6 ?

It is about algebra I think is an equation

09/13/17

#### What are the values of X, Y? 2X + 3Y = 9 X - Y = 4

Solve the following simultaneous equations. What are the values of X, Y?2X + 3Y = 9X - Y = 4

08/24/17

#### the perimeter of a triangle is 117 cm. two sides are 31 cm and 48 cm. find the third side.

means so much to me that you guys help out kids like me or teens etc solve math equations or help with math in general. owe it to you guys.

08/24/17

#### a number is divided by 8 and the quotient is -12. what is the number?

need help with this one too! please if you can help me. that would be a real help. like real help. thank you for all that you do!

08/24/17

#### the sum of a number x and -34 is 17. what is the number?

like i said in the past. it just gave me this problem to solve. so can you please help me solve it?

08/24/17

#### a boat traveled at an average speed of 14.4 km/hr for 3.5 hours. how far did the boat travel? use d=rt

i need help with this problem. so please can you just help me. i really don't know what to put in this description since all it says it what i have written above.

07/14/17

#### At the carnival , Alana gave away 26 tickets to her friends. She now has 57 tickets left. Let x be the number of tickets that Alana started with.

Write the equation describing this situation that could be used to find the value of x.

05/31/17

#### solve: 8(x+4)-4=4x-1 please show step by step

solve: 8(x+4)-4=4x-1 please show step by step

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