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Korvikt [17]
3 years ago
13

What is a valid card number for a MasterCard? A) 4224 1801 2345 6781

Mathematics
1 answer:
mart [117]3 years ago
6 0

Answer:

please mark me brainliest

Step-by-step explanation:

Mastercard cards – Begin with a 5 and has 16 digits. American Express cards – Begin with a 3, followed by a 4 or a 7 has 15 digits. Discover cards – Begin with a 6 and have 16 digits. Diners Club and Carte Blanche cards – Begin with a 3, followed by a 0, 6, or 8 and have 14 digits.

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Simplify. Write your answers in scientific notation.
cricket20 [7]
243.00000000 over 3.00
7 0
3 years ago
You need to borrow $15,000 to buy a car, and you determine that you can afford monthly payments of $325. The bank offers three c
Klio2033 [76]

Answer:

the 5yr/ $270mth

Step-by-step explanation:

$15k × 8% = $1200 interest

$15k + $1200 = $16,200.00

$16500 ÷ 60months (5years) = $270/mth pymt

4 0
3 years ago
An ounce is equal to about 28 g. If 1 g of soil contains 2.5 billion bacteria, how many bacteria are in 1 oz of soil?
Nimfa-mama [501]

Answer:

About 700 billion bacteria

Step-by-step explanation:

Given

1oz \approx 28g

1g = 25\ billion\ bacteria

Required

Number of bacteria in 1 oz

1g = 25\ billion\ bacteria

Multiply both sides by 28

28 * 1g = 25\ billion\ bacteria * 28

28g = 700\ billion\ bacteria

Recall that

1oz \approx 28g

This means:

1oz \approx 700\ billion\ bacteria

5 0
3 years ago
If line b is perpendicular to line a, and line c is perpendicular to line a, what is the slope of line c ?
Shalnov [3]
To answer this question, we must find the slope of line b.
 We have then:
 b = (3 - (- 2)) / (2 - (- 3))
 b = 5/5
 b = 1
 Since the lines b and c are parallel, it follows that their slopes are equal.
 Then
 mc = b = 1
 Answer:
 
The slope of line c is:
 mc = 1
8 0
3 years ago
Read 2 more answers
You want to buy some rice. A 7-ounce package costs 2.59. A 12- ounce package costs $4.56. An 18-ounce package costs 6.30 which p
Reika [66]

Type 1 rice :

7-ounce package costs = 2.59.

Cost of 1-ounce of Type 1 rice= 2.59/7 = $0.37

Type 2 rice :

12-ounce package costs = $4.56  

Cost of 1-ounce Type 2 rice = 4.56/12 = $0.38

Type 3 rice :

18-ounce package costs  = $ 6.30

Cost of 1-ounce Type 3 rice = 6.30/18 = $0.35.

From the above calculations, we can see that the cost of 1-ounce Type 3 rice is lowest. Therefore, 18-ounce package is Best Buy.

6 0
3 years ago
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