The formula for slope is y1 - y2/ x2 - x1
Plug the x and y values into the equation.
(10,-7) (-10,3)
3 + 7
-------
-10 -10
= 10/-20
Simplify ---> -1/2
Examples :
2/x < 4 ....multiply both sides by x, cancelling it on the left side
2 < 4x ...now divide by 4
2/4 < x
1/2 < x
5/x + 7 > = 12
5/x > = 12 - 7
5/x > = 5 ....multiply by x, cancelling it on the left
5 > = 5x...divide by 5
5/5 > = x
1 > = x
2/10 represents 20 percent, as 10 is 100% because it is the Max, so something like 4/10 would be considered 40%
Scale 1: 250,000 literally means for 1cm you calculated on the map it is magnified by 250,000 times. So if that road is 4-6cm, you just multiply it by 250,000 times and you get 1,150,000 cm.
Since you wanted to be in Km. the 100 cm is 1 meter and 1000 meters is 1 km. Therefore, 1,150,000/ 100 x 1000 = 11.5 km . Answer: 11.5 km.
Answer:
D) 900
Step-by-step explanation:
So I'm assuming the first part is jsut excess information
What we need to find is the sum fo the first 30 odd numbers -->
to simply calculate this, 1+3+5+7 ... +57+59, we can group the first and last numbers into pairs and so on. this gives us 60 as our first known number and 30/2= 15 pairs. -->
now we multiply 60x15 => 6x15 = 90 --> add 1 zero to the end and you get 900
Hope this helps!