Tiffany pays $40 for 160 minutes of talk time on her cell phone. Hpw how many minutes of talk time does she get per dollar?

Answers

Answer 1

Answer: the answer is ............................4

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GEOMETRY. PLEASE HELP ASAP! O.oFind the area. The figure is not drawn to scale. A. 28.5 ft^2 B. 11 ft^2 C. 22 ft^2

Please someone help me out in the next 30mins with this problem!

Answers

Choice-'A' is the one that describes compound interest.

'A' is the value of the account after some time.

'P' is the 'principle' ... the amount you originally put in, before any interest.

'r' is the interest rate

'n' is the number of times per year that interest is paid

't' is the number of interest payments that have happened
since you first put the money in the bank.

The answer should be A as it best satisfies the equation of compound interest

; where A is the value of account,P is principle , r is rate, n is frequency of interest payments per year and t is time.

Suppose 6 is a factor of ab, where a and b are natural numbers. Make a valid argument to explain why each assertion is true or provide a counterexample to show that an assertion is falsea. 6 must be a factor of a or of b
b. 3 must be a factor of a or of b
c. 3 must be a factor of a and of b

please help and show work

Answers

example
if ab=6
and a=3
b=2

a. 6 must be factor of 3 or 2 FALSE
b. 3 must be a factor of 3 OR 2 TRUE
c. 3 must be a factor of 3 AND 2 FALSE

B is true

Which of the following gives an example of a set that is closed under multiplication? Choose all that apply.. . . . A. The product of a perfect cube and a perfect cube. B. The product of 0 and 0. C. The product of a whole number and a whole number. D. The product of a perfect square and a perfect square. . I think its b and c? help anyone...

Answers

All the four choices that are given in the question can be considered as as examples of a set that is closed under multiplication. The correct options among all the options that are given in the question are options "A", "B", "C" and "D". I hope that the answer has come to your help.

Answer:

The correct answer is:

Option: A , Option: B , Option: C , Option: D

Step-by-step explanation:

For a set to be closed under multiplication means if two elements are taken from that set then their multiplication must also belong to the same set.

The product of a perfect cube and a perfect cube.

Let a be a perfect cube of "m"

and b be a perfect cube of "n"

i.e.

$a=m^3\n\nand\n\nb=n^3$

Hence,

$a\cdot b=m^3\cdot n^3\n\ni.e.\n\na\cdot b=(mn)^3$

i.e.

$a\cdot b\ \text{is a perfect cube of mn}$

Hence, this set if closed under multiplication.

The product of 0 and 0.

when we take the product of 0 and 0 then the resultant is also zero.

Hence, this set is also closed under multiplication.

The product of a whole number and a whole number.

When we multiply a whole number to a whole number then the product is again a whole number.

This set is also closed under multiplication.

The product of a perfect square and a perfect square.

Let us take two elements of the set as x and y

i.e.

$x=a^2$

and

$y=b^2$

Hence,

$x\cdot y=a^2\cdot b^2\n\ni.e.\n\nx\cdot y=(ab)^2$

i.e.

$x\cdot y\ \text{is\ also\ a perfect\ square}$

Hence, the set is closed under multiplication.

19. Lavina wants to buy a rocking chair for $160. She will pay 10% down and pay the rest in six monthly installments. What will be the amount of each monthly payment?A. $26
B. $27
C. $24
D. $16

20. The ratio of an object's weight on Earth to its weight on Neptune is 5 : 7. How much would a person who weighs 150 pounds on Earth weigh on Neptune?
A. 750 pounds
B. 107 1/7 pounds
C. 210 pounds
D. 170 pounds

Answers

number 19

price :$16
pay :10%
ask:each monthly payment
answer:
pay =10%×$160=$16
each monthly payment
={$160-$16}÷6
144÷6
$24
number 20
weight earth:150 pounds
ratio :5:7
weight neptune :7/5×150=210 pounds

At a competition 24 of 40 members of a middle school band won a metal. What percentage of the members of the band won a medal

Answers

The percentage of the members of the band won a medal is 60%.

Given that, at a competition 24 of 40 members of a middle school band won a metal.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

The fraction for 24 of 40 members is

24/40

So, the percentage

= 24/40 ×100

= 60%

Hence, the percentage of the members of the band won a medal is 60%.

To learn more about the percentage visit:

brainly.com/question/24159063.

#SPJ5

Answer:

Step-by-step explanation:

24/40=60%

You are going to college in the fall. You have just heard from your roommate and he asks you to bring the stereo system for the dorm room. You find the perfect system for $1750. You have to put 25% down and you can pay the balance in 18 equal installments. The clerk tells you that you will pay a total finance charge of $112. How much is the down payment and what is the total amount financed including the finance charge? a. $437.50; $1424.50 b. $437.50; $1312.50 c. $43.75; $1818.25 d. $43.75; $1706.25