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

Samtha can write 1 1/2 pages in 3 min how many pages could she write in 12 min

Which is an example of a proper focus for an essay? A. the history of weather science B. the study of extreme weather events C. the average temperature of snow

Kelly Ann took 15 minutes to walk from her home to the library. Her average speed was 3 miles in 45 minutes. how far was it from Kelly Ann's house to the librar

Amy has 25 ribbons .she bought 4 Ann made the rest herself .1/3 of the ribbons have sparkles how many ribbons have sparkles

Which type of map is represented by the following image? a. small-scale map b. large-scale map c. state-scale map d. city-scale map Thanks a bunch!

What geographic areas did Sargon of Akkad unite? A. Upper and Lower Egypt B. China C. the Indian subcontinent D. northern and southern Mesopotamia

Find the linear equation with slope = 7 and y-intercept = -4 NEED HELP!!!

_____ is an Element of Design A. Color B. Movement C. Balance

action - reaction forces are created at the ________ time and act upon __________ objects I need help this is a science question

describe how transverse waves can be produced on a rope