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Korvikt [17]
2 years ago
9

of the 88 keys on a piano,52 are white a.what friction of a piano's keys are white? b.what is the ratio of black keys to white k

eys?
Mathematics
1 answer:
Basile [38]2 years ago
8 0

Answer:

52/88 or simplifed 13/22 and the ratio is 52:36

Step-by-step explanation:

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Excited about the success of celebrity​ stamps, post office officials were rumored to have put forth a plan to institute two new
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Answer:

E=2.8 m-40

Step-by-step explanation:

We konw that  30°E=25°M and 310°E=125°M

so if we want to write an ecuation that linearly relates E with M, we can use the formula of the line that crosses two points:

Y-y1= (y2-y1)/(x2-x1)*(X-x1)

In thts case:

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so

E-E1= (E2-E1)/(M2-M1)* (M-M1)

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E-30 =280/100 *(M-25)

E-30 =2.8 M- 280*25/100

E-30 =2.8 M-70

E= 2.8 M-70+30

E=2.8 M-40

Good luck!

8 0
2 years ago
A rectangular prism has a width of 5 cm, a height of 8 cm and a depth of 2 cm. What is the volume of the
IRINA_888 [86]
8 x 2 x 5 = 80

So the volume of the prism would be 80 cubic centimeters
6 0
3 years ago
What is the answer for <br> - 4= 5+f
AnnyKZ [126]

Answer:

Step-by-step explanation:

-4 = 5 + f....we want to isolate f, so subtract 5 from both sides

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4 0
2 years ago
A telemarketer earns $150 a week plus $2 for each call that results in sale. Last week she earned a total of $204. How many of h
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Answer:

27 calls

Step-by-step explanation:

Let T(x) represent total sales.

Then T(x) = $150 + ($2/call)x, where x is the number of calls made.

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3 years ago
What is the median number of 4,8,10,5,9
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The answer is 10. because median means middle so 10 is the middle #.
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3 years ago
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