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Ratling [72]
3 years ago
8

PLZ HELP I DONT UNDERSTAND A password for a security system must consist of a eater followed by two digits. How many possible pa

sswords are there?
Mathematics
1 answer:
Talja [164]3 years ago
4 0

Answer:

7020

Step-by-step explanation:

The letter could be any 1 of the 26 and it could be placed in any 1 of 3 places so this makes 26*3 = 78 possibilities.

For each of these  there is any one of  permutations of 2 digits from 10

= 10P2 = 10! / 8! = 10*9 = 90.

So the answer is 78 * 90 =  7020.

Note I am assuming that the 2 digits picked are different - no duplicates.

please mark me brainliest!

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A clothing store offers a free T-shirt when a customer spends $75 or more. Lyndon has already spent $36. 95. Which statement bes
Allisa [31]

Lyndon should spend $38.05 or more to get a free T-shirt.

We have to find the statement best represents all of the amounts he can spend to get a free T-shirt

Suppose that the amount Lyndon get free T shirt is x.

Given that a clothing store offers a free T-shirt when a customer spends $75 or more.

Lyndon has already spent $36.95.

x+36.95\geq 75

To find the value of x,

Solve above inequality

x\geq 75-36.95

x\geq 38.05

Therefore,

Lyndon should spend $38.05 or more to get a free T-shirt

To learn more about the amounts he can spend to get a free visit:

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5 0
2 years ago
Almonds cost $15.50 for 6 pounds. Find the unit rate. Round to the nearest cent if necessary.
Salsk061 [2.6K]
15.50 for 6 lbs......15.50/6 =  $ 2.58 per lb
4 0
3 years ago
Convert 0.50 sen /g to RM/kg ​
IgorC [24]

the conversion is:

0.50 sen /g = 5 RM/kg

<h3>How to change the units?</h3>

First, we know that

1sen = 0.01RM

Then we can change:

0.50 sen /g = 0.50*(0.01 RM) /g = 0.005 RM/g

Now we use the relation:

1g = 0.001kg

So we can rewrite:

0.005 RM/g = 0.005 RM/(0.001kg) = 5 RM/kg

So the conversion is:

0.50 sen /g = 5 RM/kg

If you want to learn more about changes of units:

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7 0
1 year ago
Ntial)
luda_lava [24]
B is the correct answer
6 0
3 years ago
The cost of the tank and filter system is $280. The base of the tank is a square with a perimeter of 60 inches what is the side
Kaylis [27]

Answer:

The side length of of the base of the tank is 15 inches.

Step-by-step explanation:

We are given the following in the question:

Cost of the tank and filter system = $280

Perimeter of tank base = 60 inches

The perimeter of tank is in the shape of square.

We have to find the side length of the base of the tank.

Perimeter of tank base = Perimeter of square =

P = 4a\\\text{where a is the side of square}\\60 = 4a\\\Rightarrow a  = 15\text{ inches}

Thus, the side length of of the base of the tank is 15 inches.

4 0
3 years ago
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