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Dvinal [7]
3 years ago
12

You need to mix a solution that is 70% anti-freeze with one that is 30% anti-freeze to obtain 20 L of a mixture that 60% anti-fr

eeze. How many liters of each of the solutions must be used?
Mathematics
1 answer:
RoseWind [281]3 years ago
6 0

solutionwith 70% anti freeze=14l

solution with 30% anti freeze=5l

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PO =
victus00 [196]

<em><u>Using</u></em><em><u> </u></em><em><u>mid</u></em><em><u> </u></em><em><u>point</u></em><em><u> </u></em><em><u>formula</u></em><em><u>.</u></em>

In which we have

Q(-4,5)=(6+x/2) , (2+y/2)

-4=6+x/2 and 5 =2+y/2

-8=6+x and 10=2+y

x=-14 and y=8

Therefore the required value of R{-14,8}

8 0
2 years ago
PLEASE DONT SKIP THIS I NEED HELP<br><br> Can someone please explain how to solve this problem?
Setler [38]
I would say 168 because if you throw a dice with 6 sides a thousand 1000 you will most likely get one certain side 168 times.
7 0
2 years ago
How do I solve for y in the equation 2(3/4)+y=4?
yuradex [85]
2* .75 + y = 4
1.5 + y = 4
Subtract 1.5 From Each Side
Y = 2.5 Or 2 1/2
5 0
2 years ago
Read 2 more answers
Grandma has just finished baking a large rectangular pan of brownies. She is planning to make rectangular pieces of equal size a
Nikitich [7]

Answer: 60

Step-by-step explanation:

Let the side lengths of the rectangular pan be m and n. It follows that (m-2)  (n-2)= mn/2

So, since haf of the brownie pieces are in the interior. This gives 2 (m-2) (n-2) =mn

mn- 2m - 2n- 4 = 0

Then Adding 8 to both sides and applying, we obtain (m-2) (n-2) =8

Since now, m and n are both positive, we obtain (m,n) = (5,12), (6,8) (up to ordering). By inspection, 5. 12 = 60

which maximizes the number of brownies in total which is the greatest number.

Hope that helped! =)

7 0
3 years ago
Find the area of the quadrilateral ABCD. ​
REY [17]
Answer
—————————————-

3 0
2 years ago
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