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skad [1K]
3 years ago
5

Factories 3t+15

Mathematics
1 answer:
serious [3.7K]3 years ago
7 0

Answer:

(a) 3t + 15

      3(t + 5)

(b) 3a² + 9a

       3a(a+3)

(c) a²b + ab² + ab

       ab(a +b + 1)

(d) x² - 25

       x(x-25)

(e)  I'm not sure about this one, sorry

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The dollar value v(t) of a certain car model that is t years old is given by the following exponential function.
Lyrx [107]
*NOT THE ANSWER** BUT this is how its done

The dollar value v(t) of a certain car model that is t years old is given by the following exponential function. v(t) = 29,900(0.80^t) Find the initial value of the car and the value after 12 years. Round your answers to the nearest dollar as necessary

 

V(0)=29,900 X .80^0=29,900 X 1=$29,900 initial value of the car.

V(12)=29,900 X .80^12

V(12)=29,900 X 0.068719476736=$2,054.71value of the car after 12 years.

7 0
4 years ago
2x - 3 + 7x + 1 = 16
Alex73 [517]

Step 1: Simplify both sides of the equation.

2x−3+7x+1=16

2x+−3+7x+1=16

(2x+7x)+(−3+1)=16(Combine Like Terms)

9x+−2=16

9x−2=16

Step 2: Add 2 to both sides.

9x−2+2=16+2

9x=18

Step 3: Divide both sides by 9.

9x /9   =  18 /9

Therefore, x=2

Answer:

x is 2.

4 0
3 years ago
Read 2 more answers
Help me I forgot everything from last year
irakobra [83]

Answer:

17/24

Step-by-step explanation:

With unlike denominators find the Least Common Denominator (LCD)

LCD = 24

Multiplying numerators and denominators to get the LCD in all fraction denominators

= 2×4/6×4 + 3×3/8×3

Then rewriting the equation with the equivalent fractions

= 8/24 + 9/24

With like denominators we can operate on just the numerators

= 8/24 + 9/24

= 17/24

3 0
3 years ago
2.5n=45;n=18<br> Determine if the given value is the solution of the equation
Maksim231197 [3]
Well,

2.5(18) = 45
45 = 45

It's as simple as that.  n=18 is the solution to the problem.
5 0
3 years ago
Read 2 more answers
5.Footlocker buys Air Jordans for $30 a pair. They mark it up 75%. How much is the mark-up on a pair of Air Jordans
allochka39001 [22]

Answer:

$52.50

Step-by-step explanation:

What you do is you move the decimal two times to the left from 75%.

0.75*?=?

Take the orginal price and multiply ($30) by 0.75.

0.75*30= $22.50

Take 22.50 and add that to your original amount.

$22.50+$30= $52.50 or $52.5

4 0
3 years ago
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