kingGio1327 kingGio1327

10-05-2017
Mathematics

contestada

How many gallons of 30% antifreeze should be mixed with 10 gallons of 93% antifreeze to obtain a 65% antifreeze mixture ?

Respuesta :

cutelion918 cutelion918

10-05-2017

0.3*x+0.75*10=0.55(10+x)
0.3*x+7.5=5.5+0.55x
0.3x-0.55x=5.5-7.5
-0.25x=-2
x=8 liters at 30% is added to 10 liters of 75% to get 18 liters at 55%

NOW! Let;s check if it's the right answer
0.3*8+0.75*10=0.55(10+8)
2.4+7.5=0.55(18)
9.9=9.9

Answer Link

Аноним Аноним

10-05-2017

The answer to this question is 9.9

Answer Link

Otras preguntas

n Office Manager uses a Periodic Review Inventory System: they check the inventory in their Office Supply Closet once every 10 days, placing an order with their

Men in both the Chickasaw and Choctaw cultures were required to

How does the design demonstrate the ability to analyze, research, and explore a variety of information sources to adequately address how the target market might

What’s 4 divided by $5.32

What did Austria-Hungary do in 1908 that increased pre-war tensions in Europe? -It annexed Bosnia and Herzegovina. -It annexed Serbia and Herzegovina. -It attac

please help me solve this fractions. (show your work)

In a population of a certain fish, the gene for fin size has two alleles. The dominant allele leads to large fins, and the recessive allele leads to small fins.

social problem should solved socially.justify the statement

Rate your happiness 1-10

Will mark BRAINLIEST if you help