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shepuryov [24]
2 years ago
13

Plz help I need help

Mathematics
2 answers:
Simora [160]2 years ago
6 0

Answer:

a. 1/4

Step-by-step explanation:

no need for explanation

its basic

pantera1 [17]2 years ago
3 0

Answer:

7/21

Step-by-step explanation:

14/42

Divide the top and bottom by 7

14/7 =2

42/7 = 6

2/6 = 1/3

We need a ratio that is 1/3

7/21

Divide by 7

1/3

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gavmur [86]
I forget sorry I’m very sorry I don’t even know elegy I commented
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3 years ago
2) A pharmacist has 60 ml of an 8% alcohol solution. How much water should be evaporated so that the solution that remains is 10
Amiraneli [1.4K]

Answer:

let water evaporated be x ml

...

acid 8% ------60 ml

...

final quantity = 10% ----(60-x)

..

60*8 = 10(60-x)

480=600-10x

10x=600-480

10x= 120

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x=12 ml should be evaporated.

Step-by-step explanation:

4 0
3 years ago
I need help with these questions for Quadratic functions
STALIN [3.7K]

9514 1404 393

Explanation:

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An example is ...

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* In the UK, "standard form" is vertex form.

7 0
3 years ago
1,3,1,12,1,48,1 use the pattern to find next number
charle [14.2K]
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What temperature is 15 degrees lower than 7 degrees Celsius?
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