emilykaiser7593 emilykaiser7593

08-03-2019
Mathematics

contestada

A window washer spends 6 minutes washing 8 windows. How long will it take him to wash 28 windows?

Respuesta :

CEViktor04 CEViktor04

08-03-2019

All things being equal, that should be 21 minutes.

Looking at proportion,

If it takes 6 mins for 8 windows

It will take x mins for 28 windows

So,

6---------------->8

x---------------->28

Cross multiply,

x=(6×28)÷8

x=21 minutes

Answer Link

Otras preguntas

Which one of the following pairs of words consists of antonyms? a. near—close b. calm—quiet c. like—love d. true—false

. Which of the following sentences is correctly punctuated? a. The local police asked the FBI to assist with the case. b. Mary remembered to buy milk didn't s

How did the end of WWI, including the Treaty of Versailles, affect Germany?

The _____________ is based on the same ideals as the Mayflower Compact.Articles of ConfederationDeclaration of IndependenceConstitutionU.S. Bill of Rights

Which religion became the strongest rival of CHrisitianty in the Mediterranean area during the time of the Byzantine Empire? a. Buddhism b. Judaism c. Hinduism

what are examples of clines

Why is it important to close a conversation that takes place online?

In a standard dictionary, where can you find the key to pronunciation marks? a. In an appendix b. Within the definitions c. At the bottom of each page d. In

As a longitudinal wave travels through a medium, it displaces the particles . parallel to the direction which the wave travels. b. along the opposite plane of

In what year did feminists first propose the ERA?