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Licemer1 [7]
3 years ago
5

Luis and Sara both open savings accounts at the same bank. Luis opens his account with $125 and deposits $60 per week. Sara open

s her account with $50 and increases the amount by 4% per week. Which account has a greater average rate of change between 10 and 20 weeks?
A. Luis's account has a smaller average rate of change than Sara's account between 10 and 20 weeks.
B. Sara's account has a greater average rate of change than Luis' account between 10 and 20 weeks.
C. Luis's account has a greater average rate of change than Sara's account between 10 and 20 weeks.
D. Sara's and Luis's accounts have the same average rate of change between 10 and 20 weeks.
Mathematics
2 answers:
Tanya [424]3 years ago
8 0

Answer:

luis account a

Step-by-step explanation:

it is trust me

frez [133]3 years ago
7 0

Answer:

Luis's account has a greater average rate of change than Sara's account between 10 and 20 weeks.

Step-by-step explanation:

An exponential function means a curved line while a linear function is a straight line.

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Estimate a 15% tip on a dinner bill of $49.35 by first rounding the bill amount to the nearest ten dollars.
inysia [295]

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Answer:

  $7.50

Step-by-step explanation:

Rounded to the nearest $10, the $49.35 bill becomes $50.

We can find 10% of that amount by moving the decimal point to the left. 10% of $50 is $5.00.

Then 5% of $50 is half of 10%, so is $5/2 = $2.50.

The estimated tip of 15% is the sum of 10% and 5% of the bill, so is ...

  15%($50) = 10%($50) +5%($50) = $5.00 +2.50 = $7.50

The estimated 15% tip is $7.50.

3 0
3 years ago
Select the correct answer.
romanna [79]

Employees salary [$}: 30,000, 30,000, 35,000, 35,000, 40,000, 40,000.

CEO Salary: $70,000.

The correct answer is this: BOTH JAN AND MARCY ARE CORRECT.

Jan says the employee average salary is $35,000. This is correct as shown below:

Average employee salary = 30,000 + 30,000 + 35,000 +35,000 + 40,000 + 40,000 / 6 = 210 / 6 =  $35,000.

Marcy says the average salary of all company members is $40,000. This is also true as shown below.

Average salary of all company members = 30,000 + 30,000 +35,000 + 35,000 + 40,000 + 40,000 + 70,000 / 7 = 280 / 7 = $40,000.

5 0
3 years ago
Use the graph to state the solution for the system. (In other words, what is the solution for the system?)
timurjin [86]
(2,1) is the solution because its where they both intersect..
3 0
3 years ago
What two partial products would you add to find 513 x 46
Afina-wow [57]
First, let me do the Mathematical part of that, and then I shall explain the theory behind it.

Mathematical part:
We are going to multiply 513 with 46. So the two partial products that we are going to choose are 40 and 6.

Multiply 513 with 6 first.

    513
    x46
--------------------------
      18 (as 6*3 = 18)
      60 (as 6*10 = 60; In 513, the digit at tenths place is 1, so 1*10=10)
  3000 (as 6*500 = 3000; In 513, 5 is at hundredth place, so 5*100=500)
    120 (as 40*3 = 120; since 4 is at the tenth place, so 4*10=40)
    400 (as 40*10 = 400)
20000 (as 40*500 = 20000)
--------------------------
23598 (Add all of them)


Theory:
As you can see above that we have chosen the two partial products individually which are 6 and 40. Since 4 in 46 is in tenth place, we have to consider it 40 (since 4*10 = 40). One by one, we first multiply 6 with 513. Then we move to the tenth place, and multiply 513 with 40. At the end, we have added all the results we found after multiplication.

Check: If we check the multiplication result by using the calculator, we would get the same result (23598).

Another Method (instant):
513 * (40+6) = (513*40) + (513*6) = 23598.
3 0
3 years ago
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Which expression is NOT equal to 28?
Temka [501]

Answer:

aaaaa

Step-by-step explanation:

5 0
3 years ago
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