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Vlada [557]
3 years ago
8

Suppose that a chemist is mixing two acid​ solutions, one of 20​% concentration and the other of 30​% concentration. Which of th

e following concentrations could not be​ obtained?
1. 22​%,
2. 24​%,
3. 28​%,
4. 34​%
Mathematics
1 answer:
Pani-rosa [81]3 years ago
5 0

Answer:

4. 34%

Step-by-step explanation:

By mixing 20% and 30%, it will be between 20 and 30, like 22, 24 or 28. You would need a higher concentration than 30 to mix in to get 34%.

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Hitman42 [59]
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8 0
3 years ago
Find the area of a triangle whose sides are 3cm,6cm and 7cm
nadya68 [22]

Answer:

See below

Step-by-step explanation:

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 but you can use Heron's Formula

Area = sqrt( s (s-a)(s-b)(s-c) )

s = semi- perimeter =   (3+6+7)/2 = 8

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4 0
1 year ago
The room can hold a maximum of 400 people. If there are already 134 people
Olegator [25]

Answer:

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6 0
3 years ago
What is 52 divide by 69
vampirchik [111]

Answer:

Its 52/69... did u mean 69 divide by 52? If so the answer is 69/52.

Step-by-step explanation:

Hopefully u wrote the answer correctly, as always plz mark as brainliest. Hope this helps!

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The decimal form is: 0.753621 i think

5 0
3 years ago
Read 2 more answers
Which inequality is represented in the number line below?-5-4-3-2-1 0 1 2 3 4 5OA.-7+2&lt;22+3&lt;4+2OB.-9≤-3x-6≤6OC.-6 ≤ x + 2
S_A_V [24]

The Solution:

The correct answer is [option B]

Given:

Required:

To determine the inequality represented by the given number line.

7 0
1 year ago
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