tpriytwid4ianaFelto tpriytwid4ianaFelto

07-03-2017
Mathematics

contestada

A certain number is subtracted from 20. the result multiplied by 3 is equal to 45. what is the number?

Respuesta :

erinjanelle erinjanelle

07-03-2017

the correct number is 15

Answer Link

H1a2r3s4h5 H1a2r3s4h5

07-03-2017

Let the number is x
so 20-x=20-x
now 3×(20-x)=45
60-3x=45
-3x=45-60
-3x=-15
x=-15/-3
x=5
So the required number is5

Answer Link

Otras preguntas

Which of the following modern countries was NOT part of the Persian Empire? a. Turkey b. Italy c. Egypt d. afghanistan

Which statement best describes the organelles in a cell?

Which scientist established the law of octaves?

The 1930s Dust Bowl in the Great Plains was caused by a. deforestation. b. contour plowing. c. using renewable resources. d. poor farming practices.

List three major differences between the living room of the 1930s and the living room of the 1970s.

Ms. Solorio's small business had a profit of $460 on Monday. Write an integer to represent this profit.

micah divided 11 2/3 by 2 5/6 and got 4 2/17 for an answer. does this answer seem reasonable?explain your thinking. then check micah's answer.

identify the example as a fragment, a run-on, or a complete sentence. Robert Frost is predominantly associated with rural New England

Which event contributed to the rise of anti-immigrant, anti-socialist, and anti-anarchist feelings in the United States in the years during and just after World

If there are 4 grams of product produced by the chemical reaction, how many grams of reactant were consumed?