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
BartSMP [9]
3 years ago
15

When Arianna left her house,her cell phone was 45% charged started losing charge at a constant rate. 4 hours after leaving her h

ouse, the battery had 15% remaining battery life. Write an equation for B in terms of t representing the charge remaining in Arianna battery as a percentage t hours after Arianna left her house
Mathematics
1 answer:
4vir4ik [10]3 years ago
6 0

Answer:

B = 3.75t

Step-by-step explanation:

Given;

initial charge of Arianna's phone = 45%

the charge remaining in Arianna battery = 15%

If after 4hours of leaving her house, the battery had 15% remaining battery life, then the battery is discharging at the rate of ( 15% / 4hours) 3.75% per hour.

Thus, the charge remaining in Arianna's battery after she left her house is given by;

B = 3.75t

where;

t is time in hours

B is the percentage of charge remaining

You might be interested in
Can somebody fill in the blanks for me.
alukav5142 [94]

Answer:

Step-by-step explanation:

2: exterior and opposite

3:supplementary

5: angles and equal

6: supplementary

4 0
3 years ago
There are nickels, dimes, quarters in a large piggy bank, for every 2 nickels there are 3 dimes, for every 2 dimes there are 5 q
Alex

There are 80 nickels and 120 dimes and 300 quarters in piggy bank

<em><u>Solution:</u></em>

Given that,

For every 2 nickels there are 3 dimes ,

So, ratio of nickel to dime will be 2 : 3

Also for every 2 dimes there are 5 quarters

So, ratio of dime to quarters is 2 : 5

Let us first find the ratio of nickles to dimes to quarters

nickel : dime = 2 : 3

dime : quarters = 2 : 5

\frac{nickel}{dime} = \frac{2}{3}

nickel = \frac{2}{3} dime

\frac{dime}{quarter} = \frac{2}{5}

quarter = \frac{5}{2}dime

So,

nickel : dime : quarter = \frac{2}{3}dime : dime : \frac{5}{2}dime\\\\nickel : dime : quarter = \frac{2}{3} : 1 : \frac{5}{2}\\\\nickel : dime : quarter = 4 : 6 : 15

Thus nickel : dime : quarters = 4 : 6 : 15

Now, let the number of nickel be 4x

Let the number of dimes be 6x

Let the number of quarters be 15x

From given question,

There are 500 coins in all.

number of nickel + number of dimes + number of quarters = 500

4x + 6x + 15x = 500

25x = 500

x = 20

Thus,

number of nickel = 4x = 4(20) = 80

number of dimes = 6x  = 6(20) = 120

number of quarters = 15x = 15(20) = 300

Thus there are 80 nickels and 120 dimes and 300 quarters in piggy bank    

3 0
3 years ago
Please help me with question 21, and only 21!!!! I know the rest!!! I also know that b is 75 and d is 46 cause they're opposite.
zhuklara [117]
A and C is 59 because 1 line is 180 degrees so you add 75 and 46 and you get 121 and then do 180 - 121 and you get 59
4 0
3 years ago
Factor this polynomial -3x^2-16x-5 ​
dlinn [17]
The answer is -(3x+1)(x+5)
6 0
3 years ago
What is a fraction that is repeating between 0.5 and 1?
ExtremeBDS [4]

Answer:

2/3

Step-by-step explanation:

2/3=.66666666......

6 0
3 years ago
Other questions:
  • 9 times the number and 8 is less than or equal to 56
    6·1 answer
  • Tom drinks 4 pints of water a day how many full tanks of water he will in 30 days a water tank holds 5 gallons of water
    8·1 answer
  • Hi there, can anyone help me with this question?
    5·1 answer
  • 4(x – 1) &lt; 20 and x + 6 &gt; 9
    8·1 answer
  • What is the purpose of imaginary numbers?
    13·2 answers
  • What is 5.1 mi to feet
    11·1 answer
  • What is the value of x in the equation x^2+2x=24
    5·1 answer
  • Ms. Knight's two cooking classes are
    13·1 answer
  • The price of a coat was reduced from $40 to $30. By what percentage was the price of the coat reduced?
    14·2 answers
  • What property should be used to solve this one-step equation : a-3=7
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!