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Differential Equations

02/14/19

Mikaela has only nickels and dimes in her purse. There are 5 times as many dimes as nickels in her purse. The face value of the coins is $4.40. How many of each coin are in Mikaela's purse?

I don't know how to write the two equations needed to solve this

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Differential Equations Maths

02/06/19

very hard maths question

a = b + 12 b = c + 4write an equation to show the relationship between c and a

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Differential Equations Algebra 1

01/31/19

Andy, Bert and Calvin worked together repairing Andy's car. Bert worked twice as many hours as Calvin and Andy worked six hours more than Bert.

Altogether they worked 51 hours. How many hours did Andy work?

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Differential Equations Math Algebra 1 Prealgebra

01/25/19

Joanna went school supply shopping.

The rest of the question:She spent $26.79 on notebooks and pencils. Notebooks cost $2.43 each and pencils cost $1.11 each. She bought a total of 17 notebooks and pencils. How many of each did she buy? more

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Differential Equations Math Study Skills Sat Math

01/23/19

2x – 2y = -4 and x + y = 8

System of equations:2x – 2y = -4 and x + y = 8Solve for x and y

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Differential Equations

01/13/19

What is the equation for the line that passes through the points (-2,2) and (2,-8).

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Differential Equations

01/08/19

$2 per bottle of soda and $3 per bag of chips. 10 items total = $24. How many bags of chips and how many bottles of soda was purchased

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Differential Equations Algebra 1 Calculus Inequalities

01/04/19

Label the statement as true or false. If false correct the underlined portion.

If 3<x, then 3+y<x+y

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Differential Equations

01/02/19

The farmer has 34 animals and he counts 110 legs on these animals. Write the system of equations to find the number of each type of animal.

A Farmer raises chickens and cows. There are 34 animals in all. The farmer counts 110 legs on these animals. Write a system of equations to find the number of each type of animal.

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Differential Equations Calculus

12/20/18

if dp/dx=11-2x and bep is known to be a production of 3000 what is the p as function of x

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Differential Equations

12/12/18

Nataleigh's coin collection consists of dimes and quarters. There are 95 coins totaling in $12.35. How many dimes and how many quarters are there?

I don't know how to set up the problem itself.

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Differential Equations

12/10/18

what is an equation of the line that is parallel to y=5x-7and passes through (1,11)

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Differential Equations

12/10/18

What is the quotient of x and eight is thirteen

Writing equations what is the quotient of x and eight is thirteen

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Differential Equations

12/06/18

Differential equation

X(dy/dx) - y=(x^p) +1, where x is a real number and is not 0. p is a positive integer, p>1. Solve the differential equation given that y=-1 when x=1. Give ans in form y=f(x)

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Differential Equations

12/05/18

Show that if ycosx = e^x then (d^2 y/dx^2) - 2 tanx dy/dx - 2y = 0

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Differential Equations Math Calculus

12/04/18

Calculus: Differential Population Question

A population is modeled by the differential equation dP / dt = 1.2P (1 − P /5000)(a) For what values of P is the population increasing and for what values of P is the population decreasing? (b) If... more

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Differential Equations

12/02/18

y'=x-y, y(0)=1. f(x)=x-1+2e^-x

use differentiation and substitution to show that the function y=f(x) is the exact solution of the initial value problem.

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Differential Equations

12/02/18

Show that if ycosx = e^x then d^2y/dx^2 - 2 tanx dy/dx - 2y=0

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Differential Equations

11/28/18

Find dy/dx if y=√1-tanx/√1+tanx

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Differential Equations Math Algebra

11/21/18

two step equations word problem

Cookies are on sale! Today each cookie costs $0.75 less than the normal price. Right now if you buy 7 of them it will only cost you $2.80. what was the normal price?i got behind on word problems... more

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Differential Equations

11/18/18

The mean of 7 numbers is 10. Four of the numbers are 8, 5, 7 and −10. The remaining three numbers are each equal to k. Find k

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Differential Equations

11/16/18

Jay weights 20 pounds more than Dan whose weight is twice that of Kirsten's is. Their total weight is 320 pounds. How much does Kirsten weight. I need this in an equation.

I am having trouble understanding how to put it an a equation.

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Differential Equations Math Geometry

11/05/18

Write an equation of the line that passes through point (6, 1) and has the slope m=−3

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Differential Equations

10/25/18

five less than a number is greater than 10

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Differential Equations Linear Algebra

10/19/18

3 Variable System of Equations When All Set to Zero

-5x+4y-2z=0x-2y+z=06x-6y+3z=0,solve for x,y, and z.

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Mikaela has only nickels and dimes in her purse. There are 5 times as many dimes as nickels in her purse. The face value of the coins is $4.40. How many of each coin are in Mikaela's purse?

very hard maths question

Andy, Bert and Calvin worked together repairing Andy's car. Bert worked twice as many hours as Calvin and Andy worked six hours more than Bert.

Joanna went school supply shopping.

2x – 2y = -4 and x + y = 8

What is the equation for the line that passes through the points (-2,2) and (2,-8).

$2 per bottle of soda and $3 per bag of chips. 10 items total = $24. How many bags of chips and how many bottles of soda was purchased

Label the statement as true or false. If false correct the underlined portion.

The farmer has 34 animals and he counts 110 legs on these animals. Write the system of equations to find the number of each type of animal.

if dp/dx=11-2x and bep is known to be a production of 3000 what is the p as function of x

Nataleigh's coin collection consists of dimes and quarters. There are 95 coins totaling in $12.35. How many dimes and how many quarters are there?

what is an equation of the line that is parallel to y=5x-7and passes through (1,11)

What is the quotient of x and eight is thirteen

Differential equation

Show that if ycosx = e^x then (d^2 y/dx^2) - 2 tanx dy/dx - 2y = 0

Calculus: Differential Population Question

y'=x-y, y(0)=1. f(x)=x-1+2e^-x

Show that if ycosx = e^x then d^2y/dx^2 - 2 tanx dy/dx - 2y=0

Find dy/dx if y=√1-tanx/√1+tanx

two step equations word problem

The mean of 7 numbers is 10. Four of the numbers are 8, 5, 7 and −10. The remaining three numbers are each equal to k. Find k

Jay weights 20 pounds more than Dan whose weight is twice that of Kirsten's is. Their total weight is 320 pounds. How much does Kirsten weight. I need this in an equation.

Write an equation of the line that passes through point (6, 1) and has the slope m=−3

five less than a number is greater than 10

3 Variable System of Equations When All Set to Zero

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