1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sesenic [268]
3 years ago
12

When lit, a candle loses 8% of the unlit candle every hour. Janet lit a candle with an original height of 5 inches. Until the ca

ndle has been burning for at least ___ hours, the height of her candle will be more than four inches.
Please help! This was on a test but it’s confusing to me!
Mathematics
1 answer:
vova2212 [387]3 years ago
8 0

Answer:

2.5 hours

Step-by-step explanation:

We are given that

Original height of candle=5 in

Every hour candle loses =8% of 5 in=0.4

According to question

5-0.4x>4

Subtract 4 from both sides we get

5-4-0.4x>0

1-0.4x>0

-0.4x>-1

0.4x

Divide by 0.4 on both sides

x

x

x=2.5 hours

Until the candle has been burning for at least 2.5 hours, the height of her candle will be more than four inches.

You might be interested in
How do you solve this absolute value equation? ∣x−2∣=∣4+x∣
snow_tiger [21]
L x - 2 l = l 4 + x l

Remember : Absolute is just the distance from zero.

Ex : l -4 l turns into 4, as it is 4 spaces away from zero on a number line :)

l x - 2 l turns into x + 2

l 4 + x l stays the same.

So, our equation now looks like this :

x + 2 = 4 + x

So, we're basically just trying to get x by itself.

So, subtract 2 from both sides.

x = 4 + x - 2

Then, subtract x from both sides.

x - x = 4 -2 

0 = 2

Therefore, there are no solutions to this equation :)

~Hope I helped!~
6 0
3 years ago
for independence day celebration 25000 flags were distributed to 70 schools .if 40 shcool receive 250 each and the remainder dis
aleksandr82 [10.1K]

Answer:

500 flags each

Step-by-step explanation:

If 40 schools receive 250 each, then in total, that's 10,000

25,000 - 10,000 = 15,000.   There are 30 schools remaining, so we divide.  15,000 / 30 = 500, so...

40 schools get 250 flags each, and the other 30 schools get 500 flags each.

5 0
3 years ago
Which fraction has a terminating decimal as a decimal expansion <br> 1/3<br> 1/5<br> 1/7 <br> 1/9
loris [4]

Answer:

i

Step-by-step explanation:

3 0
3 years ago
How to graph quadratic equations
icang [17]
If you are graphing quadratic equations of the type
ax^2 + bx + c = 0

The equation will look like a "U" <span>if "a" is positive </span>or it will look like an upside-down "U" <span>if "a" is negative </span>


6 0
3 years ago
Help me please ill give u Brainly
Mamont248 [21]

Answer:

The answer is 2.6. You get this by adding up all the numbers (0,1,2,3,7) and then dividing by the amount of numbers there are (5). The equation would be 0+1+2+3+7=13/5= 2.6

Hope this helps.

5 0
3 years ago
Other questions:
  • In two or more complete sentences, describe why it is not possible to have a negative factorial.
    9·1 answer
  • What is 2/7 = 2x what would be the answer
    7·1 answer
  • Drag the number to match each rate to its equivalent ratio.
    11·1 answer
  • Choose the most appropriate name for the function described below.
    6·2 answers
  • What conclusions can you make from the information below? Check all that
    13·1 answer
  • Examine the following table of points, which are all on a certain line.
    12·1 answer
  • In a survey of 480 students, 253 indicated that play the piano, 268 indicated that they play the harp and 73 indicated they play
    10·1 answer
  • Lily invested $90,000 in an account paying an interest rate of 4.6% compounded
    8·1 answer
  • Simplify the expression <br>-6u - 9u + -9 + 5 + -9u​
    6·2 answers
  • During week 3, Frank rode his bike about the same amount of time as week 1 and 2 combined. About how many hours did he ride his
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!