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: In a given week, a lawyer spends 20 hours preparing for a case, 6 hours actually in court, and 2…

A:

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: 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: with

A:

Q: A car is driving at 40 kilometers per hour. How far, in meters, does it travel in 2 seconds? meters…

A: We have given that Speed = 40 kilometer per hour  time = 2 second

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: 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: Each of Debra's notebooks is 2/5 inches wide. If she has 10 inches of space remaining on her…

A:

Q: A help desk can answer 200 calls per hour. Demandrate is 250 calls per hour. What is the cycle time…

A: Given that Number of calls answered is 200 calls per hour. Demand rate is 250 calls per hour. To…

Q: 5 years ago a dad was 6 years older than 3 times his son's age at that time.  In 4 years, he will…

A: Let the dad is x years old and son is y years old now. 5 years ago dad was (x-5) and son was (y-5)…

Q: What size would you see on the box for a new television whose screen measures 40 inches wide by 15…

A:

Q: A wooden plank has a length of 19ft and 8 inches. Two pieces of each of length 3ft and 7 inches,…

A: A wooden plank has a length of 19ft and 8 inches. Two pieces of each of length 3ft and 7 inches,four…

Q: A college student spends $3,500 on gas and insurance for their car in 1 year. If they drive 9,000…

A: The objective of this question is to find out the cost per mile for a college student who spends…

Q: Calculate the number of 2" x 2" tiles that it would take to cover the floor.

A: The area of the rectangle can be given by the formula A=l×w. Here, l is the length of the rectangle…

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.