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ryzh [129]
3 years ago
9

(9x - 2) (5x + 54) (10y + 6) what is the value of x and y

Mathematics
2 answers:
lana66690 [7]3 years ago
6 0

Answer:

x=14 y=5

Step-by-step explanation:

9x-2=5x+54

4x=56

x=14

10y+6+124=180

10y=50

y=5

makkiz [27]3 years ago
5 0

Answer:

The value can

Step-by-step explanation:

be anything because x and y equal a random number so you could say 7

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A new truck costs $32,000 if the truck is worth 24,500 after three years write an explicit formula for the value of the car afte
Debora [2.8K]

Answer:

Step-by-step explanation:

depreciation for three years = 32000 - 24500 = $ 7500

depreciation per year = 7500/3 = $ 2500

depreciation % = (2500/32000)*100 = 7.81%

Value of truck after n years = 32000 * (7.81%)*n

8 0
3 years ago
Kendall works as a salesperson and earns a base salary of $82 per week plus a commission of 20% of all her sales. If Kendall had
rjkz [21]

Commission = 20% x 85 = $17

Salary = $82 + $17 = $99 <=== this much she made.

8 0
3 years ago
A block of cheese has a volume of 280 cm3 and a mass of 230 g.
Leviafan [203]

Answer:

2.7g/cm^3

step-by-step explanation:

6 0
3 years ago
A fish tank is 60cm long, 30cm wide, 40cm high and contains 70L of water. Rocks with a volume of 3000cm cubed are placed into th
hichkok12 [17]

The tank WILL overflow.

60*30*40= 72000cm^3

<em>The max volume the fish tank can hold: 72000cm^3</em>

amount of L * 1000= cm^3

70L * 1000= 70000cm^3

<em>There is already 70000cm^3 of water in the tank</em>

70000cm^3 + 3000cm^3 = 73000cm^3

The tank can only hold 72000cm^3 and the water and rocks are 73000cm^3, so the tank will overflow.

8 0
3 years ago
The length and width of a rectangle are shown below.
natulia [17]

Answer:

-2x² + 90x + 500

Step-by-step explanation:

Use FOIL method

Area of rectangle = length * width

                             = (50 - x)(2x + 10)

                             = 50*(2x) + 50*10 + (-x)*2x + (-x)*10

                             = 100x + 500 - 2x² - 10x

                             = -2x² + 10<u>0x - 10x </u>+ 500  {Combine like terms}

                            = -2x² + 90x + 500

7 0
3 years ago
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