Kevin is driving on a long road trip. He currently has 11 gallons of gas in his car. Each hour that he drives, his car uses up 1.75 gallons of gas. How much gas would be in the tank after driving for 5 hours? How much gas would be left after tt hours?

Q: How many ounces of pure zinc must be alloyed with 30 ounces of brass that is 30% zinc and 70% copper…

A:

Q: A syrup manufacturer has some 97% maple syrup and some which is 85% maple syrup. How many liters of…

A: Given  A syrup manufacturer has some 97% maple syrup and some which is 85% maple syrup.

Q: One grade of tea, worth $3.40 per pound, is to be mixed with another grade worth $2 per pound to…

A: Let x and y be the quantity of grade-I and grade II tea in pounds, respectively.The total mixture is…

Q: How much of an alloy that is 20% copper should be mixed with 200 ounces of an alloy that is 50%…

A: To convert a statement into an equation or a system of equations first denote the unknown(s) with…

Q: Karen Waugtal invested some money at 9% annual simple interest and $250 more than that amount at 10%…

A: If amount P is invested at r% simple interest then the interest obtained at the end of a year equals…

Q: A gas station sells regular gas for $2.20 per gallon and premium gas for $2.75 a gallon. At the end…

A: Consider The regular gas costs per gallon = $ 2.20 Premium gas costs per gallon = $ 2.75 The number…

Q: How many gallons of a 60% antifreeze solution must be mixed with 90 gallons of 20% antifreeze…

A:

Q: Jamie works 7 hours per day for an hourly wage and earns a total of $101.50 per day. Since her…

A: First of all we will calculate the hourly earnings of Jamie and then multiply it by 24 to find…

Q: The admission fee at an amusement park is $2.50 for children and $6.20 for adults. On a certain day,…

A:

Q: Two elves can make 5 toys in 10 minutes. How many toys can 3 elves make in 20 minutes?

A:

Q: one -fourth pound of fertilizer covers 25 square feet of ground, how much fertilizer (in pounds ) is…

A: It is given that25 square feet of ground is covered by = 14 pound

Q: In order to prepare some liquid medicine properly you need to mix 32 ML of liquid antibiotics with…

A:

Q: A pharmacist dilutes 18 liters of an 8% solution with a 4.5% solution to make a 6% solution. How…

A: A pharmacist dilutes 18 liters of an 8% solution with a 4.5% solution to make a 6% solution. Let x…

Q: Mark had 40% as much money as Joe at first. When each of them received $50 from their father, Mark…

A:

Q: Victor has some 1 peso coins and 5 more 5 peso coins than 1 peso coins making a total of 25 coins.…

A:

Q: Karen drove 275 miles in 5 hours. At the same rate, how many miles would she drive in 11 hours?

A:

Q: Milan drove 240 miles using 9 gallons of gas. At this rate, how many gallons of gas would he need to…

A: Here we have to find the amount of the gas.

Q: Charlie drove 355 miles using 17 gallons of gas. At this rate, how many gallons of gas would he need…

A:

Q: Salma drove 792 miles in 11 hours. At the same rate, how many miles would she drive in 7 hours?…

A:

Q: for

A: In this question, concept of unitary method is applied. Unitary Method The unitary approach is a…

Q: Mateo intends to reduce the alcohol content of his 50-liter wine reserve from 12% to 7% by removing…

A: Wine = 50 Liters   Current alcohol content = 12%   Required alcohol content = 7%

Q: A tank contains 8000 liters of a solution that is 40% acid. How much water should be added to make a…

A:

Q: A photographer wants to mix 4 liters of a 6% acetic acid solution with a 10% solution to get a 7%…

A: Let x be the amount of 10% solution required.So, according to question:0.06(4) + 0.1x=0.07(x+4)

Q: A small company manufactures calculators. When it charges $20 for a calculator, it se 300…

A: let price increased by x dollars  charges = 20 + x  sells of calculators = 300 - 10 x

Q: If you have to travel 379 miles total from Lima to Toronto, and your car gets 28 miles per gallon…

A: Given,Total distance = 379 milesCar gets gas = 28 miles per gallonCost of the gas = $2.33 per gallon

Q: How many days did it take the grass to grow 1 centimeter? How many centimeters did the grass grow in…

A: The grass in Jamie's yard grew 16 centimeters in 10 days.  As it grows at a constant rate, obtain…

Q: A plumber charges $50 to make a house call. He also charges $25 per hour for labor.  How much…

A: We are given a fixed charge and charge per hour of a plumber.

Q: A new police cruiser can drive 120 miles on the freeway on 8 gallons of gas. If a full tank is 30…

A: Given, A new police cruiser can drive 120 miles on the freeway on 8 gallons of gas ∴ On 1 gallon of…

Q: Monica sells twice as many yoga mats as yoga towels at her sporting goods store . Yoga mats cost…

A:

Q: A 20-pound bag of Economy brand cement mix contains 25% cement and 75% sand. How much pure cement…

A: 20-pound bag of Economy brand =25% cement and 75% sand

Q: Eduardo is combining two 6-inch pieces of wood with a piece thatmeasures 4 inches. How many total…

A: There are two 6-inch pieces and a 4-inch piece.

Q: A garden store sells Kentucky bluegrass seed for $6 per pound and ryegrass seed for $3 per pound.…

A: Given,Price of bluegrass seed = $6/poundPrice of ryegrass seed = $3/poundPrice of mixture =…

Q: A pharmacist wants to mix 40% alcohol solution with a 90% alchohoñ solution to get 500 mal 70%…

A: Let first solution be x ml,  40% alcohol =0.4x ml second solution be y ml 90% alcohol =0.9y ml

Q: Jonas had 40 more pencils than Lisa. After Lisa gave away 20 pencils, Jonas had four times as many…

A: Given Honas had 40 more pencils than Lisa. Again given after Lisa gave away 20 pencils, Jonas had…

Q: The admission fee at an amusement park is $3.75 for children and $6.00 for adults. On a certain day,…

A: Let the number of children be cAnd the number of adults be aSo the total number of persons is c+aBut…

Q: A photographer wants to mix 2 liters of a 5% acetic acid solution with a 10% solution to get a 7%…

A: Let x be required amount of 10% solution.

Q: Emilio went on a bike ride of 36 miles. He realized that if he had gone 4 mph faster, he would have…

A: Solution: The objective is to find the actual speed

Q: Ryan is a wrestler trying to make weight. He currently weighs 200 lbs. If he cuts 2 Ibs. per week,…

A:

Q: Last year, Isabel had $20,000 to invest. She invested some of it in an account that paid 7% simple…

A: Given:Isabel had a total amount of $20,000 to invest.One of her invesetment gave her a 7% interest…

Q: Monica takes one hour to wash a car and Hilary takes one hour to wash a car.  If they work together,…

A: Let Monica and Hilary can complete the work in x hours if they work together.Washing a car can be…

Q: Jamir is running for a race and is running laps around the field. If the distance around the field…

A: Since, Jamir is running for a race and is running laps around the field.Given that if the distance…

Q: The manager of a garden shop mixes grass seed that is 40% rye grass with 60 lb of grass seed that is…

A:

Q: How many gallons of 24% butterfat cream must be mixed with 500 gallons of 3% butterfat milk to…

A:

Q: A photographer wants to mix 4 liters of a 7% acetic acid solution with a 12% solution to get a 9%…

A: Let x be the volume of the 12% solution.

Q: Asanji took a trip to Mexico. Upon leaving he decided to convert all of his Pesos back into dollars.…

A: Given. SNG converted heels 40 2.7 pesos to dollars at the rate of 5.3 dollars per 11.1 pesos. We…

Q: How much water must be added to a 6​-liter solution that contains 7​% extract of baneberry to get a…

A:

Q: The admission fee at an amusement park is $4.25 for children and $6.20 for adults. On a certain day,…

A:

Q: One grade of tea, worth $3.90 per pound, is to be mixed with another grade worth $2 per pound to…

A: Given information:

Q: The diameter of a standard basketball is 9.5 inches. How many cubic inches of air would it take to…

A:

Q: A chemist needs to mix 3 liters of 25% hydrochloric acid with 85% hydrochloric acid to obtain a new…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.