Answer: Choice D
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Explanation:
The formula for the surface area of a cylinder is
We then replace r with 10 and h with 25. Keep in mind that the diameter is 20 mm, so the radius is half that at 10 mm.
So that's how we get to
Answer:
Please see the attached picture ! :D
-------- HappY LearninG <3 ----------
Do elimination
2x + y = 3
x - y = 3
Add these
3x = 6
X = 2
Plug in 2 for x
4(2) + 2y = 6
8 + 2y = 6
2y = -2
X = 2, y = -1
Let the amount of money be M,
then Mr.Scruggs spent 1/5M <span>on dog treats, and so 4/5M was left.
4/5M was equally divided in 3 parts among his favourite charities, so each of these received:
</span>
<span>
i) each charity received 4/15 of the money.
ii)
</span>
<span>
4M=15*60
M=15*15
M= 225 (dollars).
Check: 4/5(225)=4*45=180, 180/3=60</span>
Move the middle line of the +
