how long will it take for her to have enough money for her project?

Q: The combined yearly interest for x dollars invested at 12% and y dollars invested at 9% is…

A: Combined interest is, 12100x+9100y=0.12x+0.09y

Q: At the beginning, an experiment records 1 gram of bacterial culture, and the culture's weight is…

A: we have to find weight at t=10 hr.

Q: True Value Rentals charges $20 to rent a moving truck for 3 hours, with an additional charge of $3…

A: On solving this we will get

Q: How much more money would be in his account after 5 years if he saved $300 than if he saved $250?

A:

Q: A cross-country runner jogs at a rate of 15 feet per second. If she runs 300 feet from A to B, 450…

A: Speed of the runner is 15 feet per second. Total distance travelled is, Distance from A to…

Q: A chemist working on a flu vaccine needs to mix a 10% sodium-iodine solution with a 60%…

A: Given information: 10% sodium-iodine solution with a 60% sodium-iodine solution to obtain 50…

Q: How long will it take a jogger jogging at 5 mph to catch up with a walker walking at 3 mph with one…

A: Speed of jogger 5mph Speed of walker 3mph

Q: Tanya, who is a long-distance runner, runs at an average speed of 8 miles per hour (mi/h). Two hours…

A: Let: t = Honda's travel timethen(t+2) = Runner's travel time Honda's dist = runner's dist…

Q: A total of $6000 is invested, part of it at 4.25% and the rest at 5.75%. Thetotal interest after one…

A: Let $x was invested in 4.25% and (6000-x) in 5.75%  So the total interest earned is: 4.25% of x +…

Q: Edmund can build 6 tables in 2 days. Anthony and his 2 friends join Edmund. If the four of them work…

A: It is given that Edmund can build 6 tables in 2 days. Anthony and his 2 friends join Edmund.

Q: You are taking an 800-mg dose of an antibiotic every 8 hours. Your body eliminates 50% of the drug…

A:

Q: the distance a jet travels varies directly with the number of hours flown. A jet travels 1,350 miles…

A: From the given data

Q: Harriet's main pump can empty the pool in 15 hours while the backup pump can empty the pool in 26…

A:

Q: Entire Project sold for $3,200,000 with Phase II selling for 20% more than Phase I, and Phase III…

A:

Q: The number of participants in the orientation program doubles in size each day and it covers an…

A: Topic = Algebra

Q: A student can finish a project 15 minutes earlier than the other student. How long will it take them…

A:

Q: How many blocks would he need on the 9th step of the

A: In this question, we need to count the blue blocks here we are using a geometric sequence with a…

Q: At a price of S70 there is demand for 756 items a for 216 items and a supply of 650 items. Assumin…

A: According to the given information,

Q: Betty can mow a lawn in 40 minutes. Vanessa can mow the same lawn in 20 minutes. How long does it…

A: Solution :-

Q: Abbie paints twice as fast as Beth and three times as fast as Cathie. If it takes them 60 min to…

A: Assume work done by Abbie in 60 min = 6x As Abbie paints twice as fast as Beth means in 60 minutes,…

Q: long would it take to board all 150 passengers?

A:

Q: Suppose you have a clothes dryer that uses 4000 watts of power and you run it for an average of 1…

A: Given :             Power P = 4000 watts             1 kilowatt/hour  = 14cent

Q: True Value Rentals charges $17 to rent a moving truck for 3 hours, with an additional charge of $2…

A:

Q: Suppose that you currently own a clothes dryer that costs $30 per month to operate. A new efficient…

A:

Q: Suppose the value of a car V is related to the number of years since its purchase by the formula V =…

A: Here the value of car  is given V = 25000-2100n After 5 year then n = 5

Q: How many minutes would it take to breathe one billion times if you were breathing at a rate of 12…

A: Given that I am breathing at a rate of 12 times per minute. Let I need t minutes to breathe one…

Q: Solve the problem. Suppose that you are to cut a piece of ribbon for a wreath that is 96 inches long…

A: Let the length of the ribbon pieces are x and 3x.

Q: Find two positive numbers, x and y, whose product is 100 and whose sum is as small as possible.

A: Suppose x and y be the positive numbers whose product is 100 So, xy=100 Then, y=100x…

Q: Suppose Chad has $5000 to invest. If he invests $3000 at 5% interest,  at what rate must he invest…

A: Suppose Chad has $5000 to invest. If he invests $3000 at 5% interest

Q: At the Merck Corporation, it takes one computer three hours to print checks for its employees and a…

A:

Q: A pool can be filled by one pipe in 6 hours and by a second pipe in 12 hours. How long will it take…

A:

Q: Find a positive number for which the sum of its reciprocal and four times its square is the smallest…

A: 1. Let x be the positive number then according to question - S=1x+4x2 and we need to minimize this…

Q: fibernet offers 500 megabyte per second internet service for $25 per month with a $50 installation…

A: Given: Installation fee for fibernet = $50 Charges per month for fibernet = $25 Installation fee for…

Q: We have 25 days of school left how many weeks of school is that?

A:

Q: Suppose Jacqueline takes a 800 mg dose of ibuprofen and every hour that passes the amount of…

A:

Q: If Jill jogs 2 miles in 15 minutes, how long will it take her (to the nearest minute) to jog 7 miles…

A: Given if Jill jogs 2 miles in 15 minutes. To find: Time required to jog 7 miles at same rate.…

Q: The lifespan of a hamster is 6 years less than that of a giraffe. The lifespan of a puma is 4 times…

A: Consider the lifespan of hamster, giraffe and puma be h, g and p respectively. Lifespan of hamster…

Q: Edmund can build 6 tables in 2 days. Anthony and his 2 friends join Edmund. If the four of them work…

A: If a is directly proportional to b, then it can be written that ab=k.

Q: After giving 25% discount on the entry ticket, the number of visitors increased by 30%. What will be…

A: On present day: Discount on 1 ticket=25%……1Increase in number of visitors=30%……2   On other day:…

Q: la) The sum of the ages of Afful and Naomi is 34years. Five years to come, Afful will be 2 times the…

A:

Q: A worker’s wage depends on the number of hours he works. If his wage for 5 hours is ₱300, how much…

A: Wage

Q: The Wong family and the Chen family each used their sprinklers last summer. The water output rate…

A:

Q: Patrice has worked a certain amount of hours so far this week. Tomorrowshe will work four more hours…

A: Let us assume that Patrice has worked for N hours so far.

Q: A pipe can fill a tank in 120 minutes while the drain valve can drain it in 150 minutes. If the…

A: Assume it takes t minutes to fill the tub. pipe can fill in 120 minutes drain valve can empty in 150…

Q: Arthur can do a job in 30 minutes, Bonnie can do it in 40, and Clair can do it in 60 minutes. How…

A: let x be the time required in working together. Explanation of the answer is as follows

Q: A long distance call costs x cents for the first minute and y cents for eachadditional minute. How…

A: Given that the first minute costs = x cents

Q: Quinn can refinish hardwood floors four times as fast as Jack. They have to refinish 100 square feet…

A:

Q: If a country with a growth rate of 2.8% can double its population size in 24 years, then how long…

A: If a country with a growth rate of 2.8% can double its population size in 24 years, then how long…

Q: A company that manufactures compact discs has fixed monthly overhead costs of $60,000. Each disc…

A: Assume d be a number of discs produced and sold for a profit of at least $30,000 Profit = Income -…

Q: Suppose a particular antibiotic that is introduced to a petri dish containing 3000 newly discovered…

A: Introduction: Arithmetic sequence and geometric sequence are two important sequences in mathematics.…