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erma4kov [3.2K]
4 years ago
14

Mary bought K stamps for 3 dollars. How much does one stamp cost?

Mathematics
1 answer:
Bas_tet [7]4 years ago
7 0

Answer: 3/K

Step-by-step explanation:

From the question, we are informed that Mary bought K stamps for 3 dollars and we are told to find the cost of one stamp.

Number of stamps bought = K

Cost of K stamps bought = 3 dollars

Cost of ones stamp = Cost of stamps bought ÷ Number of stamps bought

= 3/K

Therefore, the cost of one stamp is 3/K

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Step-by-step explanation:

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If I'm right then <OAB = 40 degrees because 90 - 50 = 40 because <AOC is a right angle (property of radii and tangents).

<ABO also = 40 (the triangle is isosceles by two legs being radii).

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3 years ago
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Can someone please answer these for me I’m very confused. I need the answers by 20 minutes
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12) y = 2x + 8

13) ( -4, 3)

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Step-by-step explanation:

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m=(y2-y1)/(x2-x1)

m= (10-4)/(1+2)

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13)

y - y1 = m(x - x1)

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3 years ago
If f(x)=√4x+9+2, which inequality can be used to find the domain of f(x)?
tatiyna
  • y=√4x+9+2
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As it's a square root the underroot value must be greater than or equal to 0

So

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Domain

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6 0
2 years ago
Read 2 more answers
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