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
tensa zangetsu [6.8K]
3 years ago
6

Last month, the daily balance in Joana's credit card account was $1,000 for 9 days, $750 for 10 days, $850 for 4 days, and $900

Mathematics
1 answer:
FrozenT [24]3 years ago
3 0

Answer:

<em />Average = \$873<em />

<em />

Step-by-step explanation:

Given

$1000 for 9 days

$750 for 10 days

$850 for 4 days

$900 for other days

Required

Compute the daily average

First, we need to compute the number of days her balance is $900

Assuming the billing cycle is 30 days;

Number\ of\ days = 30 - (9 + 10 + 4)

Number\ of\ days = 30 - 23

Number\ of\ days = 7

The Average is then calculates using:

Average = \frac{\sum fx}{x}

Average = \frac{1000 * 9 + 750 * 10 + 850 * 4 + 900 * 7}{9 + 10 + 4+ 7}

Average = \frac{26200}{30}

Average = 873.333333333

<em />Average = \$873<em> --- Approximated</em>

You might be interested in
Find f(-5) f(x) -4x + 3
Fiesta28 [93]

Answer:

if f(x)= -4x+3

f(-5)= 23

Step-by-step explanation:

first you substitute x for -5

f(-5)= -4(-5)+3

then you multiply

-4(-5)

f(-5)=20+3

you get the positive 20 because negative times negative equals positive

then you just add the rest (20+3) which will give you your answer

f(-5)= 23

8 0
2 years ago
Which statement is true
Alex

Answer: The means are equal.

Good Luck!

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Tasha eats half her snack and gives the other half to two of her best friends to share equally. What portion of the whole snack
dybincka [34]

Answer:

tasha got 1/2 of it


one friend got 1/4 of it


the other friend got 1/4 of it

Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
Please help with 2 and 3 for maths
Vera_Pavlovna [14]

Answer:2-4=

Step-by-step explanation:y-16-(-42)

y-16+16

y-32

y-16-(-22)

y-16+4

y-20

y-16-(02)

y-16

y-16-(42)

y-0

8 0
2 years ago
Read 2 more answers
The change in the price of a certain brand of cereal from 2010 to 2012 is shown in the table. Year Change (in dollars) 2010 +0.3
TEA [102]
The answer is 240 I think
4 0
3 years ago
Read 3 more answers
Other questions:
  • (70 + a) ÷ 10 is expression or equation
    15·1 answer
  • Solve the system by the elimination method..<br><br> 2a + 3b = 6<br> 5a + 2b - 4 = 0
    13·1 answer
  • Which method can you use to prove these triangles congruent?
    13·2 answers
  • A pool is filled with 2,980 quarts of water. How many gallons of water are in the pool?.
    13·1 answer
  •  Sam solved the following problem:
    14·1 answer
  • A manufacturer with exclusive rights to a sophisticated new industrial machine is planning to sell a limited number of the machi
    10·1 answer
  • 8(5g+5−2) Distributive Property to simplify the expression.​
    6·1 answer
  • Trigonometric ratios, Side length. 15 points AND brainliest.
    12·1 answer
  • Probability and Two-Way Tables
    9·2 answers
  • Find the trigonometric form of the number 3 + √3i.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!