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bogdanovich [222]
3 years ago
12

How many gallons of a 90% antifreeze solution must be mixed with 100 gallons of 30% antifreeze to get a mixture that is 80% anti

freeze?
Mathematics
1 answer:
Grace [21]3 years ago
7 0
The answer for this question would be 30%
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3/12 - 1/3 =<br> Please answer
Alecsey [184]

Answer:

-0.0833

Step-by-step explanation:

7 0
3 years ago
Please help 20 points and brainliest
Zanzabum

Answer:


Step-by-step explanation:

a.) Graph the points onto the graph according to the table i created.

b.) 2x + y = -3

   +2x        +2x

y = 2x - 3

She is incorrect. The correct linear equation is y = -2x - 3

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3 years ago
Mark is online buying songs to download to his smart phone. He has a $20 gift card. He sees that there is a one time fee of $10
Rashid [163]

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20 - 10 = 10 - 1.99 = 8.00

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7 0
2 years ago
What is the difference between the sum of the first 2003 even counting numbers and the sum of the first 2003 odd counting number
Lana71 [14]

The difference is 2003.

The formula for the sum of the first n even numbers is SE = n^{2} + n, (E standing for even).

The sum of the first n odd numbers is SO = n^{2}, (O standing for odd).

Knowing this, plug 2003 for n,

SE - SO= (2003^{2} + 2003) - (2003^{2}) = 2003

The difference is 2003.

A number that can be divided into two halves, i.e. into two equal parts is called an even number. Even numbers are exactly divisible by 2 which means the remainder will be 0.

Learn more about Even numbers here: brainly.com/question/251701

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7 0
2 years ago
B is 34 mm from the center of circle O, which has radius 16 mm. BP and BR are tangent segments. AC is tangent to O at point Q. F
forsale [732]

Answer:

56.72mm

Step-by-step explanation:

BQ = 34 - 16 = 18mm

Using similar triangle,

AQ = QC =(16*18)/34 = 8.47mm

AC = 2*8.47 = 16.94 mm

Since

BC = AB = sqrt( AQ² + BQ²)

BC = AB = sqrt( 8.47² + 18²)

BC = AB = 19.89mm

Perimeter of triangle ABC = AB + BC + AC

P = 19.89 + 19.89 + 16.94

Perimeter = 56.72mm

7 0
3 years ago
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