Get like terms together. you might have to move across the equals sign
3x-x=-6+82
2x=76
x=38
Perhaps we can treat this as a "distance to horizon" problem, the observer is 7 mi above the earth
One formula is: d+=+sqrt%28%283h%29%2F2%29 where d is in miles and h is in feet
Change 7 mi; 5280*7 = 36960 ft
so we have
d = sqrt%28%283960%2A3%29%2F2%29
d ~ 235.5 mi
looking in opposite directions a total of 2*235 = 471 mi can be viewed
Find the circumference of the earth
C = pi%2A8000
C = 25133 mi
:
The arc: 471%2F25133 * 360 = 6.7 degrees
:
This should be pretty close, because the earth is so large compared to the altitude. would appreciate if it you would let me know. C
Answer:
0.85 Euros have the same amount as 1 U.S dollar.
Step-by-step explanation:
Given : The equation 
To find : Number of Euros which has same value as D U.S. dollar ?
Solution :
The equation
Where, E= amount of Euros
D= amount of U.S dollar.
Now for 1 U.S dollar we put D=1,
Therefore, 0.85 Euros have the same amount as 1 U.S dollar.
Answer:
2 days
Step-by-step explanation:
Step one:
let the number of days be x
and the total height be y
Plant A is 6 cm tall and growing at a rate of 4 cm per day.
the total height is
y=6+4x------------1
Plant B is 10 cm tall and growing at a rate of 2 cm per day.
y=10+2x-----------2
Required
time taken for both plants to have the same height
Step two:
equate the two equations to find when the plants will have the same height
6+4x=10+2x
collect like terms
4x-2x=10-6
2x= 4
divide both sides by 2
x= 4/2
x= 2 days
I hope this helps you
£15704+£15704.4%
£15704+£628,16
£16332,16
