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LenaWriter [7]
3 years ago
12

An airplane flies with a constant speed of 660 miles per hour. How far can it travel in 2 hours

Mathematics
2 answers:
bearhunter [10]3 years ago
6 0

Answer:

1320 miles

Step-by-step explanation:

AnnZ [28]3 years ago
6 0

If it takes the airplane to fly at a constant speed of 660 miles per hour, then twice that would be 1320 miles in 2 hours

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oksian1 [2.3K]
So the 3x means three times then u multiply by three
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3 years ago
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What number can be multiplied by 10 to make 42,300?
zhannawk [14.2K]
10*4230 that should do the trick for ya just multiply it and ya got answer
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5 0
3 years ago
Math challenging and now math challenging me to challenge math
erastovalidia [21]

Answer:

$30

Step-by-step explanation:

Total amount paid by the hire purchase scheme:

$60 + 6 * $45 = $60 + $270 = $330

Total amount paid in just the cash price:

$300

Difference:

$330 - $300 = $30

3 0
3 years ago
14.What is the solution of the system?
Archy [21]

Answer:

14.  x=-2.5,  y = -7

15.  x=28  y = -20

Step-by-step explanation:

14.  Let's solve this system by elimination.  Multiply the first equation by -1.

-1*(4x-y)= -1*(- 3)

-4x +y = 3

Then add this to the second equation.

-4x+y = 3

6x-y= - 8

--------------

2x   = -5


Divide each side by 2

x = -2.5

We still need to find y

-4x+y =3

-4(-2.5) + y =3

10 +y =3

Subtract 10 from each side.

y = 3-10

y = -7


15.I will again use elimination to solve this system, because using substitution will give me fractions which are harder to work with.   I will elimiate the y variable.  Multiply the first equation by 11

11( 5x+6y)= 11*20

55x+66y = 220

Multiply the second equation by -6

-6(9x+11y)=32*(-6)

-54x-66y = -192


Add the modified equations together.

55x+66y = 220

-54x-66y = -192

---------------------------

x = 28

We still need to solve for y

5x+6y = 20

5*28 + 6y =20

140 + 6y = 20

Subtract 140 from each side

6y = -120

Divide by 6

y = -20

3 0
2 years ago
A house was sold for $300,000 and a profit of 5% was made. Determine its
lara [203]

Answer:

285,000

Step-by-step explanation:

First, you need to figure out how much was profit. Multiply 300k by .05, which should give you 15,000. Then, subtract 15,000 from 300k to get 285k. hope this helps

3 0
2 years ago
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