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Question 147860: The difference of two numbers is 77. The second is 7 less than 5 times the first. What are the two numbers?
Can some one please help out with this question?
v/r
Jess
Click here to see answer by ankor@dixie-net.com(15660)

Question 147905: in 1990, the life expectancy of males in a certain country was 63.1 years.in 1996, it was 65.4 years.let E represent the life expectancy in year t and let t represent the number of years since 1990.
the linear function E(t) that fits the data is E(t)=?
use the function to predict the life expectancy in males in 2007
E(17)=? all answers must be rounded to the nearest tenth

Click here to see answer by oscargut(891)

Question 147925: Express the following statements in terms of algebraic symbols.
Q:The three angles A,B,C of a triangle ABC if angle A exceeds twice angle B by 20.

please and thank you
Click here to see answer by vleith(2825)

Question 148017: I need a total of 100 birds from 3 different species.The total budget is 100 dollars.If the chickens cost .50 cents,the ducks 3 dollars and the turkeys 10 dollars,how many of each do I need to get the 100 birds with the 100 dollars budget?
Click here to see answer by ankor@dixie-net.com(15660)

Question 147900: the equation y=-1777x+27,153 can be used to predict the number y of gun deaths in the united states, x years after 2000 that is, x= 0 corresponds to 2000, x=3 corresponds to 2003,x=6 corresponds to 2006 and so on.predict the number of gun deaths in 2006 and 2007. in what year will the number of gun deaths be 11,160?
Click here to see answer by orca(409)

Question 148035: An item costs $1300 has a scrap value of $100, and a useful life of six years. The linear equation relating book value and number of years is:
Click here to see answer by josmiceli(9697)

Question 148180: The sum of two numbers is 73. The second is 7 more than 5 times the first. What are the two numbers?
Can some please help out with this question.
v/r
Jess
Click here to see answer by Alan3354(30993)

Question 148237: How do I set up the following word problem into a mathematical equation:
A customer walks into an electronics store and buys five MP3 players and eight sets of headphones, paying $840. A second customer buys three MP3 players and four sets of headphones, and pays $480. How much does an MP3 player cost? How much does a set of headphones cost?

Click here to see answer by Edwin McCravy(8911)

Question 148524: I Don't want the answer I just need help getting started (setting up equation) and understanding a little more about the actual subject itself (proportion equations). If it's too much I understand.
1. A lawyer bills her clients $200 per hour of service. If a client's case requires 39 hours to complete, use proportion to calculate how much the client will owe the lawyer (excluding tax).
2. A new virus is released on the internet; the administrator of a department's Local Area Network ( LAN) is given five minutes by a manager to estimate the impact. The administrator samples 15 of the PCs connected to the LAN, and finds that 9 are infected; use proportion to estimate the number of infected PCs if there are a total of 202 PCs connected to the LAN.

3. An administrator of a popular web site is told that a new server can handle 41,000 "hits" (users accessing the site) per second. The web site currently experiences a peak demand of about 105,000 hits per second; but every month, the peak demand increases by 2800 hits per second. Use a proportion equation to determine how many new servers the administrator should buy to address expected traffic for the next 24 months.

Click here to see answer by mangopeeler07(462)

Question 148582: please help me to solve this equation.In 3 years ,Alex will be 3 times as old as his sister Percy.A year ago,Alex was 7 times as old as Percy.How old are they now?

Click here to see answer by vleith(2825)

Question 148583: for each line discrbed find an equation of the line in slope intercept form and in standard form.
through (4,-2)and perpendiculap to the line (3,7) and (5,6)
Click here to see answer by mangopeeler07(462)

Question 148607: Over the weekend, Rachel and morgan drove to chicago to go shopping. Now they are preparing to go home. Morgan needs gas for her jeep, which get 26 miles per gallon for gas mileage, when she stops at the gas station, she already has 10 gallons of gas in her tank. She buys $1.60 per gallon.
If Morgan spends $21.00 on gas, what is the total distance the girls could travel? Round to the necessary, to the nearest tenth
Click here to see answer by mangopeeler07(462)

Question 148736: Low-Fat yogurt. Ziggy's Famous Yogurt blends regular yogurt that is 3%fat with its no-fat yogurt to obtain low-fat yogurt that is 1%fat.How many pounds of regular yogurt and how many pounds of no-fat yogurt should be mixed to obtain 60 pounds of low-fat yogurt?
I started with x pounds=3% yogurt .03x
y pounds=no fat yogurt 0.0y
60 pounds=1% yogurt .01(60) or .60
x+y=60 and .03x + 0.0y =.60
x=60-y
.03x = .60
.03(60-y)=.60
1.80-y=.60
y=1.20
x+y=.60
x+1.20=.60
x=.60-1.20
x=-.60
I am lost and confused , please help me understand how to do this word problem
Thank you

Click here to see answer by Fombitz(13828)

Question 148865: According to Dr. Aaron R. Folsom of the University of Minnesota School of Public Health, your maximum ideal waist size is directly proportional to your hip size. For a woman with 40 inch hips, the maximum ideal waist size is 32 inches. What is the maximum waist size for a woman with 35 inch hips?
Click here to see answer by mangopeeler07(462)

Question 148864: The volume of a gas is inversely proportional to the pressure on the gas. If the volume is 6 cubic centimeters when the pressure on the gas is 8 kilograms per square centimeter, then what is the volume when the pressure is 12 kilograms per square centimeter?
Click here to see answer by nerdybill(6963)

Question 148934: Hi, I have to translate the following into a quadratic equation and solve it. Please help.
The length of a rectangular garden is three times its width: if the area of the garden is 75 square meters, what are its dimensions?
Click here to see answer by checkley77(12569)

Question 148933: Walt made an extra $9000 last year from a part-time job. he invested part of the money at 9% and the rest at 8%. he made a total of $770 in interest. How much was invested at 8%?
Click here to see answer by checkley77(12569)

Question 148932: Please help me put this word problem into a linear equation. Thank you in advance.
Joe has a collection of nickels and dimes that is worth $5.65. If the number of dimes were doubled and the number of nickels were increased by 8, the value of the coins would be $10.45. How many dimes does he have?
Click here to see answer by ankor@dixie-net.com(15660)

Question 148931: Please help me put the word problem below in linear equations. Thank you so much in advance. Please help me.
How do I go about this with the question?
An express and local train leave gray's Lake at 3 P.M. and head for Chicago 50 miles away. The express travels twice as fast as the local, and arrives 1 hour ahead of it. Find the speed of each train.
Click here to see answer by checkley77(12569)

Question 148958: the small soo at the park charges $12 for adult admission, $8 for child admission and $5 for senior admission. for one day, the zoo collected $839 and admitted 98 visitors. If the adult admission is 5 more than the senior admission, how many persons of each category were admitted on this day?
Click here to see answer by mangopeeler07(462)

Question 149033: 17 coins consisting of nickels dimes and quarters are collected for a newspaper vending machine. the total value of the coins is $2.05 and there are 4 more dimes than quarters. find the number of each coin type.
Click here to see answer by mangopeeler07(462)

Question 149034: A total of $3.45 constisting of dimes and quarters was collected from a soft drink vending machine. If there are 3 more dimes than quarters, find the numnber of dimes and quarters.
Click here to see answer by mangopeeler07(462)

Question 149067: hi, i need the step by step exact solution,thanks
find two positive numbers if one is three times the other and their difference is 8.
Click here to see answer by mangopeeler07(462)

Question 149086: Write an equation of the Line 1 passing through (3,-4) that is parallel to the Line II 5x-3y-9=0. Does the line I pass through the point (6,7)? Does the line II pass through the point (6,7)?

Click here to see answer by Electrified_Levi(103)

Question 149174: hi, i need exactly step by step solution in this word problem.thanks

Five times the difference of two numbers is 6 less than twice their sum.Twice the first number added to one.third of the second number is 11.Find the numbers.
Click here to see answer by edjones(7569)

Question 149182: Hi i need exactly step by step solution in this word problem,and check it.thanks
The sum of the digits of the two-digits number is 3.The tens digits is one more than the unit digit.Find the numbers.
Click here to see answer by edjones(7569)

Question 149179: Hockey teams receive 2 points for a win and 1 point for a tie. The wild cats once one a championship with 60 points. They won 9 more games than they tied. How many wins and how many ties did the Wildcats have? I thought I set this problem up correctly but it didnt work out right??
Click here to see answer by josmiceli(9697)

Question 149183: Hi i need exactly step by step solution in this word problem,and check it.thanks
If the numerator and the denominator of a fraction are increased by 3,the resulting fractions is 3/4.But if the terms of the fractions are decreased by 2,the new fractions is 1/3.Find original fraction.
Click here to see answer by edjones(7569)

Question 149185: hi, i need exactly step by step solution, thanks
If the numerator and the denominator of a fraction are increased by 3,the resulting fractions is 3/4.But if the terms of the fractions are decreased by 2,the new fraction is 1/3. Find the original faction?

Click here to see answer by 24HoursTutor.com(40)

Question 149206: Joe has a collection of nickels and dimes tha is worth$5.65. If the number of dimes were doubled and the number of nickels were increased by 8, the value of the coins would be $10.45. How may dimes does he have? Please show all work...
So far all I can come up with is x =dimes, y= nickels.
x(2), y+8 =$10.45

Click here to see answer by nerdybill(6963)

Question 149209: Walt made an extra $9000 last year from a part-time job. He invested part of the money at 9% and the rest at 8%. He made a total of $770 in interest. How much was invested at 8%? Please show all work....
Click here to see answer by mangopeeler07(462)

Question 149208: An express and local train leave Gray's Lake at 3PM and head for Chicago 50 miles away. The express travels twice as fast as the local and arrive 1 hour ahead of it. Find the speed of each train.
Click here to see answer by mangopeeler07(462)

Question 149284: Find the slope of the line that contains the points (2.346, –0.215) and (4.492, –3.322). Round to the nearest thousandth. Match your result to the correct answer below.
A) –0.517
B) 0.517
C) –1.448
D) 1.448
Click here to see answer by checkley77(12569)

Question 149328: 15x+7=31+3x

Click here to see answer by edjones(7569)

Question 149344: The length of a rectangular swimming pool is twice its width. The pool is surrounded by a cement walk 4 feet wide. If the area of the walk is 748 feet^2, determine the dimensions of the pool.
Click here to see answer by ankor@dixie-net.com(15660)

Question 149483: A nursary has a 2ft. plant that will grow 3ft. every year, and a 4ft. plant will grow 1ft. every year, how long will it for the plants to be the same height? How tall will they be?
Click here to see answer by tryin2bhelpful(6)

Question 149531: farmer Jones owes farmer brown 10 dollars. neither has any cash, but Jones has 14 cows, which he values at 185 dollars each. he suggests paying his debt in cows, with brown making change by giving Jones some of his pigs at 110 dollars each. is this possible? how?
Click here to see answer by rajagopalan(158)

Question 149572: Audrey has 28 dimes and quarters in her piggy bank with a total value of $4.75. How many of the coins are dimes and how many are quarters?
Click here to see answer by Fombitz(13828)

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