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balandron [24]
2 years ago
14

Tina paid $6.60 for some $0.15 stamps and some $0.20 stamps. She bought 37 stamps in all. How many of each kind did she buy?

Mathematics
1 answer:
sergiy2304 [10]2 years ago
4 0

Answer:

Let n be the number of 25 cent stamps.Then, 28 - n must be the number of 29 cent stamps.Tim paid $7.60 the stamps.

0.25n + 0.29(28 - n) = 7.60

This means that n stamps at 25 cents a piece plus (28 - n) stamps at 29 cents a piece sum to $7.60.Solve for m.

0.25n + 8.12 - 0.29n = 7.60

-0.04n = -0.52

n = 13

So, Tim bought 13 25-cent stamps and 28 - 13 = 15 29-cent stamps

Step-by-step explanation:

hope this helps:)

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Answer:

5817 Newtons.

Step-by-step explanation:

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The net downward force = 700g - T where T is the tension (force) in the cable. The g = acceleration due to gravity = 9.81 m s-2.

We  calculate the  acceleration of the cage by using an equation of motion:

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a = 1.5 m s-2.

So using Newtons second law of motion

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3 years ago
35. Explain the difference between the reciprocal of x^2
Scorpion4ik [409]

Answer:

As you can see, the difference between the reciprocal of x^2 and the inverse of   x^2 is that \frac{1}{x^2} =x^{-2} and \sqrt{x} =x^{\frac{1}{2}.

Step-by-step explanation:

First lets find both the reciprocal of x^2 and the inverse of

Recall that the reciprocal of a value is where you take a fraction and swap the places of the terms. In the case of x^2, 1 is the denominator, so

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Now, lets rewrite each of these to better compare them

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As you can see, the difference between the reciprocal of x^2 and the inverse of

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2 years ago
<img src="https://tex.z-dn.net/?f=x%20%5C6%20-%201%20%3D%20%20x%20%5C4%20%2B%201%20%5C2" id="TexFormula1" title="x \6 - 1 = x \
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Answer:

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Step-by-step explanation:

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2 years ago
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3 years ago
Read 2 more answers
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Answer:

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Step-by-step explanation:

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