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Komok [63]
3 years ago
5

When 2 times a number is subtracted from 7 times the number, the result is 55. what is the number?

Mathematics
1 answer:
steposvetlana [31]3 years ago
8 0
Let n represent the number. You require
   7n - 2n = 55
   5n = 55 . . . . . . collect terms
   n = 11 . . . . . . . divide by 5

The number is 11.

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How many quarter inches long is 7 3/4
Amiraneli [1.4K]
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Evaluate the function fx = 4 * 7^t for x= -1 and x=2
Alex73 [517]
Well what i think you're asking here...I apologie if I'm wrong but what I did was 

f(-1) = 4 * 7^t = 4/7 

and 

f(2) = 4 * 7^t = 196.

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6 0
3 years ago
If anyone knows how to do this pls help I could really use it
nekit [7.7K]
The perimeter of the triangle, namely the sum of all its 3 sides, is 110.

now, the three sides are in a 6:7:9 ratio, namely, if we divide 110 by (6+7+9), it will give us hmmm 110/22, a quotient of 22 equal pieces, namely how many times 22 would go into 110.

now, the small side, takes 6 of those pieces, the medium side takes 7 of them and the largest takes 9 of those pieces.

110/22 = 5

the small side is then 6(5).

the medium side is 7(5).

and the largest side is 9(5).

add them up, and you'd get the perimeter, 110 inches.
7 0
3 years ago
Will mark brainlest Thanks
klasskru [66]

Answer:

the answer is d

Step-by-step explanation:

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Claire and her partner, Grace, are throwing for the javelin event as a team. Claire threw the javelin 42 feet and Grace threw it
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The team throw the javelin 81 feet
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3 years ago
Read 2 more answers
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