Machine A can assemble a product in 4 hours while machine B can assemble the same product in 3 hours. How long (in hr) does it take to assemble the product if both machines work together? (Enter an exact number as an integer, fraction, or decimal.)  hr

Q: A King in ancient times agreed to reward the inventor of chess with one grain of wheat on the first…

A: A King in ancient times agreed to reward the inventor of chess with one grain of wheat on the first…

Q: How many sixteenths are there in four inches?   So then, 12” has approximately how many…

A:

Q: A rectangular plot of farmland is to be constructed on one side of a river and with the other three…

A:

Q: b) A father and a son working together can do a piece of job in 5 days. If the father alone can do…

A: We have to find how long will it take to son to do the job.

Q: How many hours are worked in 3 days? There are hours worked in 3 days.

A: How many hours are worked in 3 days ?

Q: 120. Petra and Dawn are typesetters for a publishing company. Petra can typeset 50 pages in 4 days…

A: Unitary method is used to solve such problems.

Q: Now that we know multiplying a number by 10 can be accomplished by moving all the digits one place…

A: Decimal number is a number in which whole number part and fractional part are differentiated by a…

Q: Two integers differ by 17 and thier product is 60. What are the integers?

A: It is given that, Two integers differ by 17 and their product is 60

Q: The student noticed that if he writes a multiplication sign between the second and third digit of…

A:

Q: a robot can complete 8 task in 5/6 ghour  so hoe long does it take the robot to complete  in one…

A: a robot take 56 hour to complete tasksin one hour how many tass?56 hours → 8 tasks1 hours → x tasks⇒…

Q: It takes an older computer 3 times as long to send out a company's email as it does a newer…

A: Given information The time taken to send email by:  the new computer             = x min the old…

Q: Incorrectly, we usually say that when we multiply any number by ten we “add” a zero to the number.…

A: a) Jushua is wrong because the correct answer is 10×1.3=13 b) If a whole number is multiplied by 10…

Q: What is the number product of two that add to 10? What number yield this product?

A:

Q: If you can complete a job in 19 hours, the fractional part of the job that you can complete in x…

A: You can complete a job in 19 hours. Job completed in one hour is 119. Therefore job completed in x…

Q: Find the 8th term of an AP where the sum of first and third terms is (18) and the difference between…

A:

Q: A King in ancient times agreed to reward the inventor of chess with one grain of wheat on the first…

A:

Q: The sum of three succeeding odd integers is 75. The largest interger is

A: Given that the sum of three succeeding odd inter is 75 To find the largest integer

Q: The product of an even number and any other number is even.

A: The product of an even number and any other number is even.

Q: If 21 men can paint a house in 16 hours how many men will be required to paint the house in 14 hours

A: Given that 21 men can paint a house in 16 hours

Q: A ball is dropped from a height of 128 feet. After each bounce it will rebound to a height that is…

A: The solution is :

Q: The 11th term of an AP exceeds than 10th term by 7 find the common difference

A:

Q: Suppose that 700 pieces of chocolate candy are to be sold 50 pieces to a box. How many boxes are…

A:

Q: Two trains leave stations 364 miles apart at the same time and travel toward each other. One train…

A: When two trains moves forward , total distance covered by them will be the distance between the…

Q: When the positive integer n is divided by 6, the remainder is 2. What is the remainder when 24n is…

A: Given  When the positive integer n is divided by 6, remainder is 2

Q: A real estate company bought a parcel of land containing 282 acres and plans to divide it into lots…

A: Here, total area=282 acres One third of the land must be used for streets. Then, the area used for…

Q: In a GP the 6th term is 16 and the 3rd term is 128. Find the sum of the first 10 terms and the sum…

A: A geometric progression or a geometric sequence is a sequence of non zero numbers, where each terms…

Q: When an integer n is divided by 6, the remainder is 5. What are the possible values of the remainder…

A: From the statement, we can say that

Q: Two trains leave stations 476 miles apart at the same time and travel toward each other. One train…

A:

Q: What power of 10 can you multiply both 1.20 and 0.20 by to get a whole number?

A:

Q: SHow how to calculate 19 x 35 step by step by writing equations that use the distributive property…

A: In this question we have to do multiplication of 19×35 using partial product algorithm.

Q: Exactly 7 cookies fit on each tray for baking four - sevenths of a tray is used to make a small box…

A: Given, No. Of cookies fit in each tray= 7 four - sevenths of a tray is used to make a small box of…

Q: Two positive whole numbers add together to make &46. What is the largest possible answer when the…

A:

Q: The 24th term of an AP is twice its 10th term .Show that its 72th term is 4 times its 15th term

A:

Q: A two digits number is obtained by either multiplying sum of the digits by 8 and adding 1 or by…

A: Form the system of two equations and two unknown and solve them to get the answer.

Q: If 6.2 is multiplied by 103, what does this multiplication do to the decimal point in 6.2?

A: We have to multiply 6.2 by 103. We know property of decimal, a.b=ab10a.bc=abc102a.bcd=abcd103 And,…

Q: Use the multiplication principle to solve the problem.How many different 7-digit phone numbers are…

A:

Q: Suppose that the number of bacteria in a colony triples every hour If 100 bacteria are used to begin…

A: Given: 100 bacteria  time =10 hours

Q: 8. One pipe can fill a swimming pool in 10 hours, while another pipe can empty the pool in 15 hours.…

A: We have to solve, how long would it take to fill the pool if both pipes were accidentally left open.…

Q: The first term of and the last term of an AP are 17 and 350 respectively.if the common difference is…

A:

Q: John knows that multiplying a number by — 1 merely changes the sign ofthe number. He reasons that…

A: Consider a number "x". If we multiplying a number by -1 then it becomes  ⇒-1x⇒-x

Q: If 7 men can do a certain job in 12 days, how long would it take 6 men to do the same job?

A: It is given that 7 men do a certain job in 12 days. We have to find the number of days taken by 6…

Q: Each side of a square is increased 6 inches. When this happens, the area is multiplied by 25. How…

A: We will solve for the original side.

Q: 2. The sum of three consecutive odd integers is 159. What is the product of the smallest integer and…

A:

Q: Use the FOIL method to complete each multiplication: - 5) а) (3 — 1)(5 – 2) b) (3x + 2)(4x - 5) - -

A: Our Aim is to complete each multiplication using FOIL Method:-(a)…

Q: A student imagined one number.2 is written to the right side of the number and 14 is added to the…

A: We can solve for the given question using elementry operations. We can write a number in the form…

Polynomials

Try substituting 1. You will get 6 and not 0. Try other real values also. What About -2? Let us check.