rmehellIsabelle rmehellIsabelle

24-11-2016
Mathematics

contestada

The ratio of the sale price of a textbook to the original price is 1:3. The original price is $81. What is the sale price. Create a proportion to find out.

Respuesta :

alsteva alsteva

27-11-2016

x - sale price
y - original price

[tex]x:y=1:3 \\x:81=1:3 \\3x=81\times 1 \\ \\x= \frac{81}{3} \\ \\x=27[/tex]

Answer Link

Otras preguntas

Which statement best describes how light waves travel in a uniform medium? a. in straight lines b. in extending circles c. in bent lines d. in shrinking rip

The excretions of living organisms are best categorized as which type of factor in an environment

who is who invented the smartphone

which progressive reform allowed the voters to approve or reject laws passed by legislature

The first Southern state to approve the Fourteenth Amendment and be readmitted to the Union was Louisiana. True False

Which of the following was a cause of Americans moving west in the early to mid-1800s? A. Availability of new land for farming B. The War of 1812

does pewter melt easliy

is the most likely reason that Grendel returns Unferth to the mead-hall, yet kills two soldiers before leaving? A. He does not want the king to think that he is

Describe the relationship between the average kinetic energy and air temperature

Where did the Hebrew people originate