Store A is offering two tubes of lip gloss for $7. The costs for lip gloss at Store B are shown in the table. Assume the cost for the lip gloss varies directly with the number of tubes. At which store does the lip gloss cost more? Explain.

Answers

Answer 1

Answer: Hi,

I think this is the table, correct?

Number of Tubes 3 5 7

Cost ($) 12 20 28

we can calculate the prize as the number of tubes multiplied by 4:
3*4=12
5*4=20
7*4=28

which means that one tube costs 4 dollars!

However, in the store A two tubes cost 7, which means that one costs half of this -3.5

So Store B is more expensive (4 dollars per 4 rather than 3.5 as in Store A).

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This is a table with two columns, pairs of item are organized?

Answers

Answer:

two-way relative frequency tables

Step-by-step explanation:

please tell me if i am wrong.

Answer:

t-chart

Step-by-step explanation:

7) Drawing 2 cards that are all 8 from a deck of cards? __________

Answers

ok so a deck has 52 cards

there are 4 suits so there are 4 cards with 8 on them (8 of clubs, hearts, spades, diamonds)

so
probability is
(desired ourcome)/(total possible)
you have 4 chances ouut of 52 for picking a 8 on the first try
on the second try, you have a 3 out of 51 (assuming you picked an 8 first and you didn't replace it)

multiply them since they are dependent on each ohter
4/52 times 3/51=12/2652=1/221

probability is 1/221

thats statistics and probablilities :D hope that helped

When combining like terms what is 7 + 8n - 10 put together?

Answers

Answer:

Step-by-step explanation:

7 + 8n - 10

= 7 - 10 + 8n

= -3 + 8n

hope this helps

plz mark it as brainliest!!!!!!!

Answer:

-3+8n

Step-by-step explanation:

7+8n-10

7 and 10 are both constants, so you'd add them together. However, since 10 is negative, it become 7+(-10), which is also just 7-10. 7-10=-3. Since 8n is the only number with a variable, it cannot be combined. Therefore, the expression becomes -3+8n.

A digital camera for 249.99 at 4%sales tax

Answers

1) Before tax = $249.99
100% = 1 = 249.99
4% = 0.04
100% + 4% = 104% = 1.04 multiplier
1.04 x $249.99 = $259.9896 = $259.99 After Tax

2) After tax = $249.99
100% = 1
4% = 0.04
1 + 0.04 = 1.04
104% = $249.99
$249.99 / 1.04 = $240.375 = $240.38 Before Tax

Sales tax is: $249.99* (4/100)

$249.99+ $249.99* (4/100)= $259.99

The price after tax is $259.99~

John is thinking of a number. He gives the following 3 clues. ``My number has 125 as a factor. My number is a multiple of 30. My number is between 800 and 2000.'' What is John's number?Please answer correctly

Answers

Answer:

John's number is 1500

Step-by-step explanation:

* Lets explain how to solve the problem

- Factors of a number are the numbers you multiply to get the number

- Ex: Factors of 12 are 1 × 12 , 2 × 6 , 3 × 4

- The factors of a number smaller than or equal the number

- Multiple of a number is that number multiplied by an integer

- Ex: 2, 4, 6, 8, and 10 are multiples of 2

- The multiples of a number greater than or equal the number

* Lets solve the number

- John is thinking of a number

- He gives the following 3 clues

# The number has 125 as a factor

# The number is a multiple of 30

# The number is between 800 and 2000

∵ 125 is a factor of the number

- Assume that the number is 125 (its factors 1 , 5 , 25 , 125)

∵ The number is a multiple of 30

- Assume the number is 30 (the first multiple of 30)

- To solve the problem lets find the lowest common multiple of 125

and 30 by using prime numbers only

∵ The prime factors of 125 = 5 × 5 × 5

∵ The prime factors of 30 = 2 × 3 × 5

- L.C.M of the two numbers is the product of their prime factors

without reputation

∴ L.C.M = 5 × 5 × 5 × 2 × 3 = 750

∵ 750 has 125 as a factor

∵ 750 is a multiple of 30

- But 750 is not between 800 and 2000

∴ Find a multiple of 750 and between 800 and 2000

∵ 2 × 750 = 1500

* lets check the three clues

∵ 1500 has 125 as a factor

∵ 1500 is a multiple of 30

∵ 1500 is between 800 and 2000

∴ John's number is 1500

Which of the following is equivalent to √20

A. 4
B. 5√2
C. 2√5
D. 20

Answers

Answer is 4 because it can be multiplied by 5

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