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Tutors Answer Your Questions about Systems-of-equations (FREE)
Question 144436: YESTERDAY YOU BOUGHT A HUGE WATERMELON THAT WEIGHS 100 POUNDS. A WATERMELON IS 90% WATER. YOU LEFT IT OUTSIDE IN THE HOT SUN. SOME OF THE WATER EVAPORATED, SO IT IS NOW 80% WATER. HOW MUCH DOES THE WATERMELON WEIGH NOW?
Click here to see answer by stanbon(26296)   |
Question 144437: YOU ARE SENT TO THE STORE TO BUY TOMATOES AND BROCCOLI. THREE POUNDS OF TOMATOES AND FOUR POUNDS OF BROCCOLI WILL COST $12. TWO POUNDS OF TOMATOES AND TWO POUNDS OF BROCCOLI WILL COST $8. WHAT IS THE INDIVIDUAL COST OF THE TOMATOES AND BROCCOLI?
Click here to see answer by stanbon(26296) |
Question 144438: YOU DESIGNATE ONE ROW IN YOUR GARDEN TO BROCCOLI AND PEA PLANTS. EACH BROCCOLI PLANT NEEDS 12 INCHES OF SPACE AND EACH PEA PLANT NEEDS 6 INCHES OF SPACE. THE ROW IS 10 FEET LONG. IF YOU WANT A TOTAL OF 13 PLANTS, HOW MANY OF EACH PLANT CAN YOU HAVE?
Click here to see answer by Alan3354(6092)  |
Question 144759: Al can paint a room in a hours working alone. Bill can paint a room in b hours working
alone. Working alone, Bill takes two more hours to paint a room than Al. Working together,
they can paint a room in 8 hours. Write down a system of two equations involving the variables
a and b that can be used to find a and b. Solve the system.
Click here to see answer by stanbon(26296) |
Question 145048: casey receives $ 336 per year in simple interest from 3 investments. part is invester at 8%, part 9%, and part at 10%. there is $500 more invested at 9% than at 8%. The amount invested at 10% is 3 times the amount invested at 9%. Fine the amount invested at each rate.
8%________
9%________
10%_______
Click here to see answer by stanbon(26296) |
Question 145088: Xander and Ella pool their loose change to buy snacks on their coffee break. One day, they spend $1.85 on 1 carton of milk, 2 donuts, and 1 cup of coffee. The next day, they spend $2.30 on 3 donuts and 2 cups of coffee. The third day, they bought 1 carton of milk, 1 donut, and 2 cups of coffee and spent $1.75. On the fourth day, They have a total of $1.80 left. Is this enough to buy 2 cartons of milk and 2 donuts?
equation #1________
equation #2________
Equation #3 _______
milk cost ______
Donut Cost _____
Coffee Cost_____
4th day cost______
available $1.80
yes or no________
I am finding this question VERY hard!! Please help me :)
Click here to see answer by faceoff57(65) |
Question 145088: Xander and Ella pool their loose change to buy snacks on their coffee break. One day, they spend $1.85 on 1 carton of milk, 2 donuts, and 1 cup of coffee. The next day, they spend $2.30 on 3 donuts and 2 cups of coffee. The third day, they bought 1 carton of milk, 1 donut, and 2 cups of coffee and spent $1.75. On the fourth day, They have a total of $1.80 left. Is this enough to buy 2 cartons of milk and 2 donuts?
equation #1________
equation #2________
Equation #3 _______
milk cost ______
Donut Cost _____
Coffee Cost_____
4th day cost______
available $1.80
yes or no________
I am finding this question VERY hard!! Please help me :)
Click here to see answer by seema230480(3) |
Question 145091: On an 18-hole golf course, there are par-3 holes, par-4 holes, and par-5 holes. A golfer who shoots par on every hole has a score of 72. the sum of the number of par-3 holes and the number of par -5 holes is 8. How many of each type of hole are there on the golf course?
Click here to see answer by stanbon(26296) |
Question 145097: The owner of cool beans coffee shop mixes french roast coffee worth $9.00 per with Kenyan coffee worth $7.50 per pound in order to get 10 pounds of a mixture worth $8.40 per pound. How much of each type of coffee was used?
number of pounds of french roast coffee_______
number of poundsof Kenyan coffee_____
Click here to see answer by josmiceli(3012) |
Question 145186This question is from textbook Beginning Algebra
: I have to solve using equations with two variables...Can you help me?
Page 504
Number 5
Income of a nurse Sharyn worked as a Registered Nurse in London last summer. The first week she was there she worked a total of 23 hours at a city hospital. She was paid $13.50 an hour for the day shift and $16.50 and hour for the night shift work. She earned $352.50 for her first week of work. How many hours did she spend on the day shift? How many hours did she spend on the night shift?This question is from textbook Beginning Algebra
Click here to see answer by nerdybill(2448)  |
Question 145298This question is from textbook Beginning Algebra
: I need help...Please:)
Page 504
Number 4
I have to solve using two equations with two variables.
High School Musical El/ segundo High School put on their annual musical. The students sold 650 tickets for a value of $4375.000. If orchestra seats cost $7.50 and balcony seats cost $3.50, how many of each kind of seat were sold?This question is from textbook Beginning Algebra
Click here to see answer by jim_thompson5910(13794) |
Question 145541: My mind has gone blank....any help is greatly appreciated:
A boat has a speed of 5 mph in still water. The boat can travel 21 miles with the current in the same time in which it can travel 9 miles against the current. Find the rate of the current.
Click here to see answer by edjones(3298)  |
Question 146275: pleas help: my math problem is about solving two-step inequalities the problem is -3 -8x > 29-7 i tried to solve it but im not sure how all my paper says is to first undo addition or subtraction second undo multiplication or division pleas help ive bin trying for 3 days now. thank you
also this problemis solveing one step inequalities and the poroblem is -x<6 all you have to do is solve the inequality my answer is -x<6 because it just says to change the inequality symbol if you divide or multiply by a negative and i think it stays the same because theirs nothing to divide or multiply by tell me if im wrong because i relly dont get this THANK YOU!!!!
Click here to see answer by jim_thompson5910(13794) |
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