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OleMash [197]
2 years ago
5

A quantity with an initial value of 120 decays exponentially at a rate of 9.5% every 7

Mathematics
1 answer:
blondinia [14]2 years ago
6 0

Answer:

39.46

Step-by-step explanation:

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If f(x) and its inverse function, F(x), are both plotted on the same coordinate plane, what is their point of intersection?
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Answer:  d) (3, 3)

<u>Step-by-step explanation:</u>

Inverse is when you swap the x's and y's.

Let's look at the points and find their inverse:

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(0, -2)  -->  (-2, 0)

(1, -1)   -->   (-1, 1)

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(3, 3)   -->   (3, 3)       f(x) = f⁻¹(x) so this is where they intersect!

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What is the quotient 5/8 + 1/5?
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Answer:

33/40

Step-by-step explanation:

cross multiply

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2 years ago
The reciprocal of 5 plus the reciprocal of 7 is the reciprocal of what number?
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Write and solve an equation for the following word problem. Define your variable.
marshall27 [118]

Answer:

The variable is the number of clothes sold 'x'.

The equation is: 118.50=100+0.25x

The number of clothes sold by Lynn are 74.

Step-by-step explanation:

Let the number of pieces of clothes sold be 'x'.

Given:

Earning of Lynn per cloth is $0.25.

Fixed earning of Lynn per day is $100

Total earning after selling 'x' clothes is $118.50.

Variable: Number of clothes 'x'.

Equation:

Earning of Lynn for 1 cloth = $0.25

∴ Earning of Lynn for 'x' clothes = 0.25\times x=0.25x

Now, total earning of Lynn is the sum of fixed earning and earning from selling 'x' clothes. Therefore,

Total earning = Fixed earning + Earning for 'x' clothes

⇒118.50=100+0.25x

Solution:

Add -100 both sides and then divide the result by 0.25 both sides. This gives,

118.50-100=100-100+0.25x\\0.25x=18.50\\x=\frac{18.50}{0.25}=74

Therefore, the number of clothes sold by Lynn are 74.

3 0
3 years ago
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