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otez555 [7]
3 years ago
8

There are 5 milliliters of compound A used for every 4 milliliters of compound B. If a chemist wants to make 495 milliliters, ho

w many milliliters of compound A are needed
Mathematics
1 answer:
bija089 [108]3 years ago
8 0

Answer:

275

Step-by-step explanation:

Since there are 4 mm of B for every 5 mm of A that means there are 9 parts in that. Dividing 495 by 9 you get 55 which is how much of each part of the compound there is. Since there are 5 mm of A in each part of A you multiply 5 by 55 to get 275 which is your answer.

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stepladder [879]

Answer:

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6 0
3 years ago
What is .0487 as a percent
Alborosie
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5 0
3 years ago
Trigonometry
Alla [95]

90° is equal to  \frac{\pi}{2} or 1.5707 radians.

Step-by-step explanation:

Step 1:

If an angle is represented in degrees, it will be of the form x°.  

If an angle is represented in radians, it will be of the form \frac{\pi}{x} radians.

To convert degrees to radians, we multiply the degree measure by \frac{\pi}{180}.

For the conversion of degrees to radians,

the degrees in radians = (given value in degrees)(\frac{\pi}{180}).

Step 2:

To convert 90°,

90 (\frac{\pi}{180} ) = \frac{\pi}{2}.

0.5 \pi = 1.5707 radians.

So 90° is equal to \frac{\pi}{2} or 1.5707 radians.

3 0
3 years ago
Linda can complete 4.5 long divisions in 1 hour. how many can she finish in 6.5 hours?
coldgirl [10]
Is there an A.B.C. or D to choose from?
8 0
3 years ago
Sarah made a deposit of $100 into a savings account with 3
Andru [333]

Answer: D, $116

Step-by-step explanation:

A = 100(1 + 0.03)^5

A = 100(1.03)^5

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A = 115.92

Hope this helped!

7 0
2 years ago
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