Answer:
12 presents
Step-by-step explanation:
4/6= 2/3
2/3 x 18 = 12
Absolute value, aka same distance from 0
for example |5| is five numbers away from zero and |-5| is also five numbers away from zero
Answer:
44, 46, and 48
Step-by-step explanation:
add them and you should get 138.
So 20% of 30 is 6
30% * 30 is 9
Alexa completed 6 of 30 questions
Brent completed 9 of 30 questions
Brent completed 3 more questions than Alexa
Hope this helps :)
Large sphere's radius = R,
small sphere's radius = r, R = 8r
surface area of a sphere (SA) = 4×pi×radius^2
So what we need is the SA of the larger in terms of the smaller sphere, so if:
SA (of R) = 4×pi×R^2, then plug in "8r" for "R"...
SA = 4×pi×(8r)^2 = 4×3.14×64r^2
SA = 12.57×64r^2 = 804 r^2
Therefore the SA of the larger sphere is 804 times the SA of the smaller sphere.
I hope that makes sense!
