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

The seasons on earth are caused by its elliptical orbit around the sun. the seasons on earth are caused by its elliptical orbit around the sun. a. True b. Fal

•What are some examples of real-world applications that have improved our lives as a result of research where biology, neuroscience, and psychology overlap?

23. More than 20,000 people's lives are affected by driving a motor vehicle every ___________ A. hour. B. day. C. month.

A _______ is the event that separates illness behavior from sick role behavior. a. heart attack b. hospitalization c. diagnosis d. death

The measure of one angle of an octagon is twice that of the other seven angles. What is the measure of each angle?

How could the US have intervened before it did in the Holocaust?

The patient has asked the nurse to explain her wbc level of 8,000 cells/mm3. the nurse would identify the level of wbcs as:

You can use the results from a search on a database in all of these ways except to ____.

When an array is passed to a function, it is actually ________ the array that is/are passed?

What musical technique does palestrina primarily use in the "kyrie" from his pope marcellus mass to make the text more easily understood than in josquin's ave m