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2 years ago

(GIVING BRAINLIEST!!!)

Mathematics

2 answers:

natta225 [31]2 years ago

3 0

Answer:

A hope that helps

Step-by-step explanation:

castortr0y [4]2 years ago

3 0

It’s 96in3 because after u multiply 4*8 u get 32 then u multiply 32*3 to get 96

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A hospital needs to dilute a 50% boric acid solution to a 10% solution. If it needs 25 liters of the 10% solution, how much of t

Leona [35]

You need one equation of this problem to balance the amount of a boric acid.

The amount of boric acid in 50% solution is expressed as 0.50*x

Next, the amount of water is taken from 25 liters and x (based on 50% solution), that is 25 - x. However, there is NO amount of BORIC ACID in water, and that is 0.

For the output solution, the amount of boric acid will be 0.10*2.5 = 2.5

Then, the balance equation is
0.50*x + 0*(25 - x) = 2.5
Solving for x,
0.50*x + 0 = 2.5
x = 2.5/0.5 = 5

Therefore the amount of liters in 50% solution is
5*0.50 = 2.5 liters
The amount of water is 25 - 5 = 20 liters

7 0

3 years ago

Read 2 more answers

an ice fisherman wishes to cut a hole in the ice which has a diameter of 30 cm. How far around must he cut to create this hole?

olga55 [171]

Given:

Diameter of the hole = 30 cm

To find:

The area of the hole.

Solution:

The radius of a circle is always half of the diameter. It is given that the diameter of the hole is 30 cm. So, the radius of the hole is:

$r=\dfrac{30}{2}$

$r=15$

Area of a circle is:

$A=\pi r^2$

Putting $\pi = 3.14$ and $r=15$ in the above formula, we get

$A=(3.14)(15)^2$

$A=(3.14)(225)$

$A=706.5$

Therefore, the area of the hold is 706.5 square cm.

4 0

2 years ago

2. Mr. Walters starts preparing breakfast at

alexdok [17]

Answer: 55 minutes

Explanation:

Round 6:45 to 6:50.
From 6:50 it takes 1 hour/60 minutes to become 7:50.
Then subtract the 5 minutes we added when we rounded up to 6:50.
60-5=55 minutes

8 0

2 years ago

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Can someone help me with this

Naya [18.7K]

Answer:

the answer should be 8.9

you square 12 and square the 8 and subtract them by each other

3 0

2 years ago

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4. If DF = 9x - 39, find EF. Help I’m so confused!!!!