A thief steals an ATM card and must randomly guess the correct four-digit pin code from a 9-key keypad. Repetition of digits is allowed. What is the probability of a correct guess on the first try? The number of possible codes is (Type an integer or fraction. Simplify your answer.) The probability that the correct code is given on the first try is (Type an integer or fraction. Simplify your answer.)

Q: The total seating capacity of an auditorium is 1 950. The first row has

A: Given, the total seating capacity of an auditorium is 1950. the first row has 7 seats and   each row…

Q: A rectangular piece of sheet metal has a length that is 6 inches less than three times the width. A…

A: Let, width of the original metal sheet is x inches.     Then, length of the sheet is 3x - 6 inches.…

Q: Two postal workers, Jerome Grant and Tim Bozik, can sort a stack of mail in 5 hours. Working alone,…

A:

Q: John can finish a job alone in 5 hours. Jack can finish the same job alone in 6 hours. How long does…

A: John can finish a job alone in 5 hours. Jack can finish the same job alone in 6 hours.

Q: The area of a rectangle is 18 square units. The rectangle has 3 rows of squares. How many squares…

A: We divide the rectangle in 6×3 units .

Q: a total of 25000is to be invested in stock and bonds. if the amount invested in bonds is four times…

A: Let's find amount invested in binds and stocks.

Q: A lady worked 48 hr one week and earned a $494 paycheck. She earns time and a half (1.5 times her…

A: Given information:

Q: If a garden snail can travel one mile in 33 hours, how manydays will it take for such a snail to…

A: If a garden snail can travel one mile in 33 hours then timeT taken to travel 6 miles will be…

Q: A company produces 128000 cases of soft drink annualy. It costs 1 dollar to store 1 case for 1 year…

A: Topic = Algebra

Q: A new trail is 8/10 miles long a park ranger divides the trail into 4 equal parts. How long is each…

A: We have to find the length of section of trail

Q: a certain car gets 35 miles per gallon and has a 15 gallon tank how many times would the tank have…

A: Total distance of drive = 2625 miles  Car   gets 35 miles/gallon No of gallons for total drive =…

Q: A bacteria culture initially contains 3000 bacteria and doubles every half hour. Find the size of…

A:

Q: with

A:

Q: Would 6 divided by 0 equal no solution?

A: Yes. Any number cannot be divided by zero.If we didvide any number by zero, then we get an undefined…

Q: Simon is a third of his dads age. In 12 years his dad will be twice as old as Simon. What are their…

A:

Q: A real estate company bought a parcel of land containing 282 acres and plans to divide it into lots…

A: Here, total area=282 acres One third of the land must be used for streets. Then, the area used for…

Q: One bag of potting soil contains 8 quarts of soil. How many clay pots can be filled from one bag of…

A: We have to find that how many clay pots can be filled from one bag of potting soil. Given - 1 bag of…

Q: A colony of 20,000 bacteria doubles in size every 55 hours. What will the population be 110 hours…

A: Solution of this question is

Q: In a test of Murphy’s law, pieces of toast were buttered on one side and then dropped. Murphy’s law…

A: The sampled number of toasts dropped, n=9821.The number of times toasts dropped butter-side down,…

Q: What is one less than twice a number

A:

Q: if sara can read 15 pages in 10 minutes, how long will it take her to read 45 pages?

A: if sara can read 15 pages in 10 minutes, how long will it take her to read 45 pages?

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.