Questions on Algebra: Systems of equations that are not linear answered by real tutors!

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Algebra: Systems of equations that are not linear

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Question 118187: 1a) At the school play on Fri. night 120 tickets were sold. Student tickets cost $5 each, and Adult tickets colst $7 each. the total sale for the evening was $670. How many of each type of tickets were sold?
1b) Write a sytem of equations that represents this problem, then solve and asnwer the question.
Answer for 1a- amount of Student tickets sold is 85
amount of Adult tickets sold is 35
Could you please help me with 1b I'am not exactly sure how to do it :(

Click here to see answer by scott8148(3382)

Question 118370: I am studying for a test and was womdering if there was someone that could help me with this problem?
Find f^-1 (x) for f(x)= -x^3+2. Give the domain of f^-1
Click here to see answer by stanbon(26275)

Question 118929: six apples and three oranges cost $3.36.two apples and five oranges cost $3.04.find the cost of an apple and the cost of an orange.
Click here to see answer by MathLover1(1183)

Question 118928: the perimeter of a rectangle is 160ft.one fourth the length is the same as twice the width.find the dimensions of the rectangle.
Click here to see answer by MathLover1(1183)

Question 118926: four oranges and five apples cost $3.56.three oranges and four apples cost $2.76.find the cost of an orange and the cost of an apple.

Click here to see answer by checkley71(8405)

Question 118930: the booster club voted on where they would go for their annual trip.a majority of the club voted to go to a baseball game.they bought 29 tickets.som epf the tickets cost $21 each and some cost $27 each.the total cost of all the tickets was $675.how many ticktes of each price did they buy?
Click here to see answer by solver91311(5072)

Question 118927: tyrone is twice as old as his daughter.in sox years tyrone's age will be three times what his daughter's age was six years ago.how old are they at present?
Click here to see answer by solver91311(5072)

Question 119392: your brother and sister took truns driving on a 580 mile trip. Your brother drove 55 mph and your sister drove 60 mph. they drove 10 hours. how long did each person drive
Click here to see answer by heidi_1_1(5)

Question 119511: M=2=2/1
This problem must be shown on a line graph
Click here to see answer by MathLover1(1183)

Question 119509: M=2=2/1
Click here to see answer by MathLover1(1183)

Question 120012: The sum of the digits of a two-digit number is 11. If the digits are reversed, the new number is 45 more than the original number. Find the number.
Click here to see answer by stanbon(26275)

Question 120010: x=2y+6
1/2x-y=3
Click here to see answer by HyperBrain(694)

Question 120448: Three times the larger of two numbers is equal to four times the smaller. The sum of the numbers is 21. Find the numbers
Click here to see answer by bucky(1732)

Question 120680: how do yew do this promblem
it is the linear system
please help me
here is the promblem
4x+y=12
y=-8
Click here to see answer by rapaljer(3620)

Question 120790This question is from textbook Algebra 2 and Trigonometry
: An isosceles riangle has a perimeter of 50 cm. The sum of the length of the base and the ehight of the triangle is 31 cm. Find the area of the triangle.

I set it up for 2a + b = 50
and b + h = 31

I have a lot of triangle formulas at my disposal, such as the area of a triangle = 1/2 bh, or Heron's formula for the area of a triangle. I know that we can also use the special formula for the area of an isosceles triangle. The quadratic formula of a squared + b squared = c squared too. But I guess I keep getting stuck with the fact that I've got 3 unknowns rather than 2, re: a, b, and h. In the other problems in the book, I generally have one linear equation, which I solve for a, then I substitute a into the quadratic equation. This one has me really stuck. All help very much appreciated. This question is from textbook Algebra 2 and Trigonometry

Click here to see answer by Fombitz(2113)

Question 120859: This is the function equation
x 2 1 -1 -2 -4
y 12 48 48 12 3
What is the function?
Click here to see answer by stanbon(26275)

Question 120634: a rubber ball rebounds half the height it falls. given that the ball falls from a height 50 feet, how many times will it have hit the ground when it has traveled a total of 140 feet.
Click here to see answer by scott8148(3382)

Question 121109: Find the perimeter of the triangle. one side is 3, one side is radical 3 - radical 2, the other side is radical 3 + radical 2. woooosh over my head, please help me.
Click here to see answer by josmiceli(3009)

Question 121544: At the high school band's annual spaghetti dinner, the members served 210 dinners and collected $935. The band leader did not designate which ticket was an adult or child dinner. You need to know that to prepare the correct amount of food and for future planning. Each adult dinner cost $6 and each child's dinner cost $3.50.
Let a = number of adult dinners
Let c = number of child dinners

1. Write two equations to represent the total amount raised from the dinner and the total
Use substitution to solve the above system of equations. How many adult dinners were sold and how many child dinners were sold?
I would like to know of how do i solve this problem??

Click here to see answer by algebrapro18(206)

Question 121547: Show all your work to receive full credit for this problem.
Use the Substitution method to solve the system of equations. Give your answer as an ordered pair (x,y).

x + y = -5
x - y = 3

Click here to see answer by algebrapro18(206)

Question 121540: Please help me figure this out.
A cold faucet can fill a sink in 12 minutes, and a hot water faucet can
fill it in 15. The drain can empty the sink in 25 minutes. If both
faucets are on and the drain is open, how long will it take to fill
the sink?
Answers:
a) 8 4/13 minutes
b) 8 9/10 minutes
c) 9 1/11 minutes
d) 9 8/9 minutes
e) 10 2/15 minutes
Click here to see answer by ankor@dixie-net.com(6693)

Question 121542: Please help me figure this out.
Starting at noon, how long will it take for the hour and minute hands of a
typical analog clock to form a 90 degree angle?
Answers:
a) 15 minutes
b) 16 1/3 minutes
c) 16 4/11 minutes
d) 16 23/60 minutes
e) 16 5/12 minutes
Click here to see answer by MathLover1(1183)

Question 121457: If x-y=6 and 3x(squared)+3xy-6y(squared)=60, then 9x+18y=?
Click here to see answer by jaymore(5)

Question 121538: Please help me figure this out.
60 students were interviewed and the following info was obtained:
20 own a horse
31 own a cat
32 own a dog
7 own a horse and cat
14 own a cat and dog
12 own a dog and horse
5 own all three
How many interviewed students didn't own a dog, cat, or horse?
Answers:
a) none
b) 2
c) 3
d) 5
e) 6

Click here to see answer by checkley71(8405)

Question 121967This question is from textbook
: a mortocycle breaks down and the rider has to walk the rest of the way to work. The motorcycle was traveling at 45 mi/h, and the rider walks at a speed of 6 mi/h. The distance from home to work is 25miles, and the total time for the trip was 2 hours. How far did the motorcycle go before it broke down?This question is from textbook

Click here to see answer by bucky(1732)

Question 122385: a farmer plants two kinds of crops on his 3000 acres of land. the income from crop A is $190 per acre. the income from crop B is $300 per acre. the farmers gaol is to earn a sales of $713,000. Solve the system of equations.
Click here to see answer by ankor@dixie-net.com(6693)

Question 122610: Which of these ordered pairs is a solution for the equation 3x-2y=6?
(a)(0,-3)
(b)(0,3)
(c)(-2,0)
(d)(-2,-3)
Click here to see answer by jim_thompson5910(13794)

Question 122783: how do you do substution method and graphing systems of equations.
it's chapter 7
Click here to see answer by stanbon(26275)

Question 122861: ISBN-0-07-873823-7

one number is 12 less than three times another number. their sum is 188. write two equations that would be used to solve the system.
Click here to see answer by checkley71(8405)

Question 122903:
How to write an equation in standard form? The equation I am trying to convert is:
y-3=1/2(x-6)
Thank you in advance!

Click here to see answer by checkley71(8405)

Question 123320: Write the equation of the line passing through the two points. show that this line is perpendicular to the given line.
(4,2) and (-4,6); y=2x+3
Click here to see answer by chitra(359)

Question 123337: x-3y=0
xy=27
Click here to see answer by bucky(1732)

Question 123538: Sam is 2 years older than her brother. 12 years ago, she was twice as old as he was. How old are they now?
Click here to see answer by Edwin McCravy(2922)

Question 123660This question is from textbook Structure and Method Book 1

:

write an equation for the line with slope 1/3 and y-intercept 4.
write an equation for the line with slope 3 going through the point (1,-2)
write an equation for the line going through the points (3,2) and (-2,4)This question is from textbook Structure and Method Book 1

Click here to see answer by checkley71(8405)

Question 124897: A group of 80 people attend a ball game. There were three times as many children as adults in the group. Write a system of equations that you could use to set up this problem, where a is the number of adults and c is the number of children in the group. Solve the system of equations for c, the number of children in the group.
Click here to see answer by checkley71(8405)

Question 124899: x punds of candy valued at $3.50 per pound is mixed with y pounds of candy valued at $4.30 per pound to produce 10 pounds of a mixture selling for $4 per pound. Find x and y, the number of pounds of each type.
Click here to see answer by checkley71(8405)

Question 124898: A total of $10,000 is invested in two funds paying 5% and 7% annual interest. The combined annual interest is $644. How much of the $10,000 is invested in each fund?
Click here to see answer by checkley71(8405)

Question 125067: Calvin paid his $1.35 skate rental with dimes and nickels only. There were 19 coins in all. How many of each coin were there?
Click here to see answer by checkley71(8405)

Question 125089: There were 166 paid admissions to a game. The price was $2.00 for aduls and $0.75 for children. The amount taken in was $293.25. How many adults and how many children attended?
Click here to see answer by checkley71(8405)

Question 125188: Find the x-intercept. y=x^2+x-6
Click here to see answer by jim_thompson5910(13794)

Question 125278: A jar contains 5-gram bolts and 10-gram bolts. The contents of the jar weigh 2.35kg. If there are 300 bolts altogether, how many are there of each kind?
Click here to see answer by checkley71(8405)

Question 125463: Three times the larger numbers is equal to four times the smaller. The sum of the numbers is 21. Find the numbers.
Click here to see answer by uma(370)

Question 125690: One number is 12 more than another.The sum of the smaller number and twice the larger number is 39. Find the larger number.
Click here to see answer by MathLover1(1183)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755