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Brilliant_brown [7]
3 years ago
15

a first class postage stamp was $0.02 in 1885. the same first class postage stamp in 2006 was $0.39. what is the percent of incr

ease in the cost of a first class postage stamp?
Mathematics
1 answer:
Eddi Din [679]3 years ago
5 0

The price was increased by $0.37 just subtract

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What is the sum of Negative 8 + 6?
Pavlova-9 [17]

Answer:

-14 or -2

Step-by-step explanation:

-8+-6= -14

-8+6 = -2

7 0
3 years ago
Amanda composed two songs. The longer song is 126 seconds less than twice the length of the short song. The longer song lasts 28
polet [3.4K]
If there are two songs written and the longest one is 126 seconds less than twice the length of the short song, and the longest one lasts 286 seconds, then the shorter song's length can be found using this formula: 
2x-126=286.
This would then turn into x-63=143 to show the time difference. Solving here for x, would be 206 seconds.
4 0
3 years ago
The gravitational potential energy of an object is
Alchen [17]

Answer:

h=p/(mg)

Step-by-step explanation:

P=mgh

solving for h,

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7 0
3 years ago
Complete the solution of the equation fine the value of y when x = 9 3x+4y=43
Mekhanik [1.2K]
3(9)=27
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6 0
3 years ago
100y−39,000=55(x−800)
hoa [83]

Answer:

y = 11/20x -50

Step-by-step explanation:

100y−39,000=55(x−800)

Distribute

100y−39,000=55x−44000

Add 39000 to each side

100y−39,000+39000=55x−44000+39000

100y = 55x -5000

Divide each side by 100

100y/100 = 55x/100 - 5000/100

y = 11/20x -50

This is slope intercept form

where 11/20 is the slope and -50 is the y intercept

4 0
3 years ago
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