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Tom [10]
3 years ago
11

Part B if u want part A too

Mathematics
1 answer:
Anna11 [10]3 years ago
6 0
I dont get the question

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How many quarts of pure antifreeze must be added to 8 quarts of a 40% antifreeze solution to obtain a 60% antifreeze solution
anyanavicka [17]

Let <em>q</em> be the number of quarts of pure antifreeze that needs to be added to get the desired solution.

8 quarts of 40% solution contains 0.40 × 8 = 3.2 quarts of antifreeze.

The new solution would have a total volume of 8 + <em>q</em> quarts, and it would contain a total amount of 3.2 + <em>q</em> quarts of antifreeze. You want to end up with a concentration of 60% antifreeze, which means

(3.2 + <em>q</em>) / (8 + <em>q</em>) = 0.60

Solve for <em>q</em> :

3.2 + <em>q</em> = 0.60 (8 + <em>q</em>)

3.2 + <em>q</em> = 4.8 + 0.6<em>q</em>

0.4<em>q</em> = 1.6

<em>q</em> = 4

4 0
2 years ago
Opposites and absolute value mean the same thing.<br><br> True or false
poizon [28]

Answer:

The absolute value of a number is the distance between the number and zero on a number line. In other words, a number and its opposite have the same absolute value.

Step-by-step explanation:

7 0
3 years ago
Jenny charges for delivering the cakes.
bezimeni [28]
£4 and 720p, 12 times 60p equals 720p
8 0
3 years ago
EXPERT HELP I'LL GIVE BRAINLIEST: C or D
denis23 [38]

Answer:

Step-by-step explanation:

A=(3.14d^2)/4

A=0.785d^2

A=0.785(10^2)

A=78.5 yd^2

6 0
3 years ago
Use the listing method to represent the following set.
Hatshy [7]

Answer:

b

Step-by-step explanation:

{x | x I, x ≥ 3}

6 0
3 years ago
Read 2 more answers
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