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Math Help For College Math Math Help

07/06/18

I need help with these linear equations

Solve using Substitution or Elimination 1. x + 4y = -4 x + 10y = -16 2. -9x + 3y = -3 3x - 2y = -4 3. -7x + 3y = 12 2x - 8y = -32 4. y=5x - 3 x + 2y = 27 5. x - 4y =... more

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Math Help For College Math Algebra 1 Algebra

07/06/18

How many ounces of dandelion root extract must be mixed with 30 ounces of spleen to make 30% lead-nux mys?

Spleen contains 54% lead and dandelion contains 12% lead. If spleen is combined with extracts of dandelion, the result is an antidote called Nux Mys. How many ounces of dandelion root extract must... more

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Math Help For College Math Math Help Math Question

07/05/18

Hydrogen Peroxide: C1=100%, V1=50 ml, C2=2%, V2=???

Solve the following problems. (You need not compute the amount of diluent)

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Math Help For College Math Math Help Math Word Problem

07/05/18

NaOH (sodium hydroxide) C1=30%, V1=500 ml, C2=5%, V2=???

Solve the following problems. (You need not compute the amount of diluent)

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Math Help For College Math Math Help Math Question

07/05/18

HCL (hydrochloric acid): C1=100%, V1=20ml, C2=1%, V2=???

Solve the following problems and determine the amount of diluent.

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Math Help For College

07/05/18

Suppose that 11 inches of wire costs 44 cents. At the same rate, how much (in cents) will 33 inches of wire cost

Math

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Math Help For College Math Math Help Math Question

07/05/18

Isopropyl alcohol C1 = 100%, V1 = ? , C2 =70%, V2= 2.5 L

Solve the following problems and determine the amount of diluent.

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Math Help For College Math Maths Math Question

07/05/18

A stock solution NaCL solution is 20%. From it prepare 15 mL of 0.9% saline solution. How much of the stock solution do you need? How much water do you ne

Determine the volume of stock solution needed and the volume of diluent

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Math Help For College Math Help Math Question Math Word Problem

07/05/18

Prepare 1000 mL of 1% HCL using the stock solution of 70% HCL. How much of the stock solution and how much water is required?

Determine the volume of stock solution needed and the volume of diluent

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Math Help For College Math Math Help Math Word Problem

07/05/18

Prepare 30 L of formalin from a 100% stock solution. How much formalin is needed to make a 5% solutions?

Determine the volume of stock solution needed and the volume of diluent

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Math Help For College Math Math Help

07/04/18

I need help with my math homework

Problem 1: Write an equation in point-slope form for the line that has a slope of 1/3 and passes through (-2,8) Problem 2: Write an equation in slope intercept form for the line that passes... more

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Math Help For College Math Math Problem

06/29/18

NEED HELP WITH THIS WORD PROBLEM

A sales representative of a company using a personal car receives $260 per day for lodging and meals plus $0.60 per mile driven. Write a linear equation giving the daily cost C to the company in... more

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Math Help For College Math Math Help Math Word Problem

06/27/18

What is the y-intercept of the equation of the line that is perpendicular to the line y = x + 10 and passes through the point (15, –5)?

please help me! this is an important test.

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Math Help For College

06/26/18

How many did they each send?

Karen,Jim,and Michael sent a total of 94 messages over their cell phones during the weeken. Karen sent 8 more messages than Jim. Michael sent 4 time as many messages as Karen. How many messages did... more

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Math Help For College Math

06/25/18

what is 12% of 120

math help for college

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Math Help For College

06/22/18

How many gallons of a 13 % acid solution and a 27 % acid solution need to be mixed to make 7 gallons of a 19 % acid solution?

help me i need to get this done. please help

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Math Help For College Word Problem Word Problems Word Problem Help

06/18/18

Word problem help please!

In a survey at a local university, 28% of students say that they get less than the recommended eight hours of sleep per night. In a group of 3500 students, how many would you expect get eight or... more

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Math Help For College

06/16/18

help me with math i need help

Ms. Burke invested $23 comma 000 in two accounts, one yielding 8% interest and the other yielding 10%. If she received a total of $1 comma 920 in interest at the end of the year, how much did she... more

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Math Help For College

06/15/18

Exponentional function

there was a sample of 500 milligrams of a radioactive substance to start a study. since then, the sample has decayed by 3.6% each year. let t be the number of years since the start of the study.... more

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Math Help For College

06/13/18

Final Exam College

I have a 64% in my math class and my final exam is the last 10% of my grade, what grade do I need to get on my test to get a 70% in my class? All I need is C in my class to pass.

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Math Help For College

06/13/18

Mass of an apple is 160?

answer has to be grams or kilograms

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Math Help For College

06/09/18

The spring concert at a certain high school sold 172 tickets. Students were charged $2 each and adults $6 each. The income from the sale of tickets was $724.

Please help!

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Math Help For College Math Word Problem

06/08/18

Ed Moura has $12000 invested in stocks paying 7%. How much additional money should he invest in certificates of deposit paying 2% so that the average return

on the two investments is 3%? Help me please solve this tricky question i'm not very good with these things

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Math Help For College Math Help Math Word Problem Math Problem

06/08/18

A hotel manager found that his gross receipts for the day, including a 5% sales tax, were $4281.90. Find the amount of sales tax collected. solve

I need help solving this question i am very confused and would appreciate all the help i can get

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Math Help For College

06/06/18

help to solve this question

he plans for a shed call for a rectangular floor with a perimeter of 240 ft. The length is two times the width. Find the length and width.

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I need help with these linear equations

How many ounces of dandelion root extract must be mixed with 30 ounces of spleen to make 30% lead-nux mys?

Hydrogen Peroxide: C1=100%, V1=50 ml, C2=2%, V2=???

NaOH (sodium hydroxide) C1=30%, V1=500 ml, C2=5%, V2=???

HCL (hydrochloric acid): C1=100%, V1=20ml, C2=1%, V2=???

Suppose that 11 inches of wire costs 44 cents. At the same rate, how much (in cents) will 33 inches of wire cost

Isopropyl alcohol C1 = 100%, V1 = ? , C2 =70%, V2= 2.5 L

A stock solution NaCL solution is 20%. From it prepare 15 mL of 0.9% saline solution. How much of the stock solution do you need? How much water do you ne

Prepare 1000 mL of 1% HCL using the stock solution of 70% HCL. How much of the stock solution and how much water is required?

Prepare 30 L of formalin from a 100% stock solution. How much formalin is needed to make a 5% solutions?

I need help with my math homework

NEED HELP WITH THIS WORD PROBLEM

What is the y-intercept of the equation of the line that is perpendicular to the line y = x + 10 and passes through the point (15, –5)?

How many did they each send?

what is 12% of 120

How many gallons of a 13 % acid solution and a 27 % acid solution need to be mixed to make 7 gallons of a 19 % acid​ solution?

Word problem help please!

help me with math i need help

Exponentional function

Final Exam College

Mass of an apple is 160?

The spring concert at a certain high school sold 172 tickets. Students were charged ​$2 each and adults ​$6 each. The income from the sale of tickets was ​$724.

Ed Moura has ​$12000 invested in stocks paying 7​%. How much additional money should he invest in certificates of deposit paying 2​% so that the average return

A hotel manager found that his gross receipts for the​ day, including a 5​% sales​ tax, were ​$4281.90. Find the amount of sales tax collected. solve

help to solve this question

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How many gallons of a 13 % acid solution and a 27 % acid solution need to be mixed to make 7 gallons of a 19 % acid solution?

The spring concert at a certain high school sold 172 tickets. Students were charged $2 each and adults $6 each. The income from the sale of tickets was $724.

Ed Moura has $12000 invested in stocks paying 7%. How much additional money should he invest in certificates of deposit paying 2% so that the average return

A hotel manager found that his gross receipts for the day, including a 5% sales tax, were $4281.90. Find the amount of sales tax collected. solve