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GREYUIT [131]
3 years ago
7

A system of equations is shown below:

Mathematics
1 answer:
Naddika [18.5K]3 years ago
5 0
6x - 5y = 5
3x + 5y = 4
----------------add
9x = 9
x = 9/9
x = 1 <===
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How many trout are estimated to be present if a random sample of 5,000 fish is collected from the lake?
Alex_Xolod [135]
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3 years ago
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An employee makes a gross salary of 48,000 per year 15% of that money goes toward taxes of the employee invest 20% of his gross
kolezko [41]
First calculate his gross salary after his 401k contributions:
x = 48000 - (48000 \times 0.20) \\ x = 38400

Then find the amount of taxes withheld:
t = 38400(0.15) \\ t = 5760

5,760 dollars went towards taxes.
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3 years ago
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Evaluate the expression when k=-4<br> |k-2 • |3k|,- 1<br> a. 72<br> b. 71<br> c. 66<br> d. -73
Feliz [49]

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3 years ago
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What is 3/5 divided by 2 1/2 by the lowest quotient
Brilliant_brown [7]

Answer:

<h2>\frac{6}{25}</h2>

Step-by-step explanation:

<h3>\frac{3}{5} ÷ \frac{5}{2} = \frac{3}{5} ÷ \frac{2}{5} = \frac{6}{25}</h3>
7 0
3 years ago
The value of a $3000 computer decreases about 30% each year. write a function for the computers value V(t)
den301095 [7]

Answer:

Function for given situation is : V(t)=3000(0.70)^t

Value of computer after 4 years = $720.3.

Step-by-step explanation:

Given that the value of a $3000 computer decreases about 30% each year. Now we need to write a function for the computers value V(t). then we need to find about how much will the computer be worth in 4 years.

It clearly says that value decreases so that means function represents decay.

For decay we use formula:

A=P(1-r)^t

where P=initial value = $3000,

r= rate of decrease =30% = 0.30

t= number of years

A=V(t) = future value

so the required function is V(t)=3000(1-0.30)^t

or V(t)=3000(0.70)^t

Now plug t=4 years to get the value of computer after 4 years.

V(4)=3000(0.70)^4

V(4)=720.3

Hence final answer is $720.3.

7 0
2 years ago
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