30 hours. Just multiply 10 by 15 to get 150 and then 2 times 15 is 30.
Answer:
Step-by-step explanation:
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Hope this helps you!
Answer:
D 28
Step-by-step explanation:
Times both side by 12
48+4x=5x-72
120=x
X²/25 + y²/100 =1
4x²/100+ y²/100 =1
4x²+y²=100
y²=100- 4x²
If x=0, y²= 100, y = ±10
c{(0,-10),(0,10)}
If y=0, 4x²= 100, x²=25, x=±5
d {(-5,0),(5,0)}
