cmmbutterflies
cmmbutterflies cmmbutterflies
  • 05-02-2020
  • Mathematics
contestada

How many gallons of a 50% antifreeze solution must be mixed with 70 gallons of 30% antifreeze to get a mixture that is 40% antifreeze?

Respuesta :

kenlingdad kenlingdad
  • 05-02-2020

Answer:

70 gallons

Step-by-step explanation:

x gallon of 50%

x * 0.5 + 70 * 0.3 = (x + 70) * 0.4

0.5x + 21 = 0.4x + 28

0.1x = 7

x = 70

Answer Link

Otras preguntas

how did geography influence the location of European colonies?
Find the difference: 7 7/8 - 3 1/4=?
Under the constitution the principle of federalism is the reason that power and responsibility are
Given that cos (x) = 1/3, find sin (90 - x)
In their theories about government, Locke and Hobbes agreed that __________. a. citizens are not required to give up any individual rights c. citizens and their
What important decisions had to be made concerning the fate of the seceded states and the rights of those freed from slavery?
What important decisions had to be made concerning the fate of the seceded states and the rights of those freed from slavery?
A criticism of the American system of federalism is that it is
what are the factors of (r+t)(e)
A criticism of the American system of federalism is that it is