Earth diameter = 12,750 km
Earth radius = 6,375 km
Sphere Surface Area = <span> 4 • <span>π <span>• r²
</span></span></span>Sphere Surface Area = 4 * 3.141<span>59 * 6375^2
</span>Sphere Surface Area = 4 * 3.14159 *
<span>
<span>
<span>
40,640,625
</span>
</span>
</span>
<span>
<span>
<span>
Earth's Entire </span></span></span><span>Surface Area = 510,704,724 square kilometers
Surface NOT covered by water = </span><span>510,704,724 * .3
</span>Surface NOT covered by water =
<span>
<span>
<span>
153,211,417</span></span></span><span> square kilometers</span>
8 / x = 12 - 3(8)
8 / x = 12 -24
8 / x = -12
x = -0.66666666667
Check your work
8 /(-0.66666666667) = 12- 3(8)
-12 = 12 - 3(8)
-12 = -12
x = -0.66666666667 Exactaly (Ten 6's One 7)
Hope this helps :)
Answer:
The original cost was 20 dollars.
Step-by-step explanation:
$12 represents 60% of the original price.
Set up a proportion
Cross multiply Reduce 100/100 to 1
60/100 * x = 12 * 100/100
Multiply by 100
60/ 100 * x = 12
Divide by 60
60x = 12*100
60x = 1200
60x/60 = 1200/60
x = 20 dollars.
The square root of 1296 is 6.
Answer:
hmmmm (A) Write a system of linear inequalities to represent the situation.
that I guess ^~^
