02-08-2014
Mathematics

Answered

Al washed a car in 6 minutes. Fred washes the same car in 8 min. How long dies it take Al and Fred to wash the car together?

Answer :

Аноним Аноним

03-08-2014

[tex]In\ 1min\ Al\ wash\ \frac{1}{6}\ car.\\In\ 1min\ Fred\ wash\ \frac{1}{8}\ car\\\\Together\ in\ 1min:\frac{1}{6}+\frac{1}{8}=\frac{4}{24}+\frac{3}{24}=\frac{7}{24}\ car\\\\Answer:Al\ and\ Fred\ wash\ the\ car\ in\ \frac{24}{7}min=3\frac{3}{7}min\approx3.5min[/tex]

Answer Link

Other Questions

Which verb form correctly completes the conversation?Ana: ¿Qué hiciste ayer después de la escuela, Teresa? Teresa: Yo _______ con la profesora.A. hablamos B.

Perform the long division:[tex]\[ 56 \div 4873 \][/tex]Format the following question or task so that it is easier to read.Fix any grammar or spelling errors.Rem

The height, [tex]h[/tex], in feet of a ball suspended from a spring as a function of time, [tex]t[/tex], in seconds can be given by the equation [tex]h = a \sin

Which of the following lug nuts should be installed dry, without any lubricant?A. Acorn SeatB. Ball SeatC. Mag SeatD. All of theseE. None of these

The table below compares the energy requirements of three display technologies for e-reader devices.[tex]\[ \begin{tabular}{|l|l|l|l|} \hline Technology & e

Question 15 of 73If [tex]f(x) = 4^x[/tex], find [tex]f(2)[/tex] and [tex]f(-2)[/tex].[tex]f(2) = \square[/tex](Simplify your answer. Type an integer or a fracti

Which choice is equivalent to the fraction below when [tex][tex]$x \geq 2$[/tex][/tex]?Rationalize the denominator and simplify:[tex]\frac{4}{\sqrt{x-2}-\sqrt{x

Consider the unbalanced equation for the oxidation of aluminum.[tex]\[ \_ \text{Al} + \text{O}_2 \rightarrow \text{Al}_2\text{O}_3 \][/tex]Which sequence of coe

2. Efectuar:[tex]c = \sqrt{(x-5)^2 - (x+3)^2 + 16x}[/tex]A. 1 B. 2 C. 3 D. 4 E. 5

psOnce he reviewed fall sales, the store owner decided he needed to increase efforts to appeal to younger customers; therefore, he hireda marketing consultant t

Which of the following statements best describes the Lend-Lease program initiated by the United States during the early part of World War II? a) Foreign nations

Which of the following best describes deflation as it relates to Earth science

why is it helpful to draw a picture when attempting to solve an equation PLEAS HELP ME I GIVE THANKS

The length of a rectangle is 5.5 feet. If the area is 44 square feet, what is the width of the rectangle, in feet? A.242 B.8 C.16.5 D.38.5

Which statement describes a common measurement error? a) a flaw in the design of an experiment b) using inconsistent methods for collecting data c) using instru

Why do marshmallows puff up when microwaved more than any other food?

what does it mean that a bill is a proposed law

Which source is considered primary source of scientific information Original

The fastest texter in the world is Ben Cook who typed a 160-letter messge in about 40 seconds. How many letters can Ben text in a second? How many letters in

What is 18/100 simplified