Answer:
- 1.25 hours or 1 hour and 15 minutes
Step-by-step explanation:
<em>Question</em>
- <em>Lisa lit a candle with a height of 8 inches. When lit, this candle loses 10% of its original height every hour. </em>
- <em>Please complete the following sentence by writing the number in the blank.
Until the candle has been burning for at least _______ hours, the height of Jennifer's candle will be more than 7 inches.</em>
<u>Candle looses 10% of 8 inches, it equals:</u>
- 8*0.1 = 0.8 inches an hour
<u>Let x be required time, then:</u>
- 8 - 0.8x > 7
- 0.8x < 8 - 7
- 0.8x < 1
- x < 1/0.8
- x < 1.25
- or 1 hour 15 minutes
Answer:
20
Step-by-step explanation:
trust me.
This problem can be solve by using
ration and proportion, since you want to enlarge the picture by not distorting
the image, the new dimensions should be in proportion with the old one.
Let x be length of the image
(5/40 = (x/5)
X = 5(5/4)
<span>X = 6.25 in</span>
Answer
Step 1: Add -x^2 to both sides.
x2+c+8x+−x2=0+−x2
c+8x=−x2
Step 2: Add -8x to both sides.
c+8x+−8x=−x2+−8x
c=−x2−8x
Answer:
c=−x2−8x
I hope is is the answer you are looking for
I think it is 1.5, sorry if i'm wrong good luck!!!
:)
