80. Vacation Money Heather has saved $177 to take with her on the family vacation. She has 51 bills consisting of $1, $5, and $10 bills. If the number of $5 bills is three times the number of $10 bills, find how many of each bill she has.

Q: You have 10 liters of juice that is 40% juice and 60% water. You want the mixture to be 70% juice…

A: Given : You have 10 liters of juice that is 40%  juice and 60% water. You want the mixture to be…

Q: The number of males in the classroom is five more than three times the number of females. If the…

A: Let number of females in classroom be x Number of males = 3x+5

Q: Her father reflected on the season that she made 7 times as many 2-pointers as 3-pointers and twice…

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Q: 4c. Anthony has 46 pieces of gum and eats 2 pieces per day. Javier has 54 pieces of gum and eats 3…

A: 4 c) Let, Anthony and Xavier have the same amount of gum in x days. Since, Anthony takes 2 gums and…

Q: 4. Working alone, Jamie can mow her lawn in 75 minutes. If Bob helps here, then the two of them can…

A: Let Bob takes x hours to mow the lawn alone

Q: 7.) The ticket prices to a museum are $5.50 for adults and $3.00 for students. How much will it cost…

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Q: The school requires him to have four courses in Physical Education and pass an endurance test. The…

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Q: Brittany has $2.52 in coins. She has three quarters, six nickels, some dimes,and four more pennies…

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Q: 8. Kelly, Laura, and Tia sold boxes of cookies for a fundraiser. Kelly sold 15 boxes less than…

A: Let x be the number of boxes that laura soldSo, the boxes that kelly sold=x-15The boxes that tia…

Q: A 20% solution of fertilizer is to be mixed with a 80% solution of fertilizer in order to get 60…

A: Let x number of gallons of 20% mixed in solution  Let y number of gallons of 80% mixed in solution

Q: 2) Jacob and Ming each improved their yards by planting daylilies and ornamental grass. They bought…

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Q: You work 20 hours per week at a candy store and earn $8.50 per hour. You also earn $8.00 per hour…

A: Follow next step

Q: Maria has a 45-minute lunch break. During the break, she will walk 5 minutes to another floor, say…

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Q: Kelly runs a restaurant that sells two kinds of desserts. Kelly knows the restaurant must make at…

A: To solve the optimization problem as per the given data and constraints

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A: Let a= quantity of 30% of solution of fertile and b= quantity of 80% solution of fertile Now, given…

Q: 4) Jamila runs a grocery store that sells bulk coffee bean blends by the pound. She wishes to mix 40…

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Q: Chen's friend Alisa can ride 2 miles in 7 minutes. How long would it take for Alisa to ride 10 miles…

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Q: 33. Pedro wishes to give one rose to his mother on her birthday. On his way to his mother, he has to…

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Q: 7. The sum of digits of two-digit number is 12. When the digits are reversed, the number is…

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Q: 11.If one cup of soup costs 50 cents, which of the following represents the number of cups of soup…

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A: Steve the Storyteller had 5 times as many red balloons as black balloons.

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A:

Q: A scientist mixes water (containing no salt) with a solution that contains 20% salt. She wants to…

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A:

Q: Lucy is blocking off several rooms in a hotel for guests coming to her wedding. The hotel can…

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Q: Jack and Shelly have saved up a total of $29.00. Jack has saved 4 dollars more than 2323 as much as…

A: In the given question, concept of algebraic expression is used. Algebraic Expression When operations…

Q: 45. Mari has 42 coins consisting of nickels, dimes, and quarters. The total value of the coins is…

A:

Q: Carly and Johanna have made 80 sketches for an art show. Johanna has made five less than four times…

A: our objective is to find how many sketch made by Carly and how many sketch made by Johanna.

Q: 3. 7. A carpenter makes and sells rocking chairs. The material for each chair costs $22.50. The…

A: Disclaimer: Since you have posted multiple question, we will be answering only first question for…

Q: At a concession stand, seven hot dog(s) and four hamburger(s) cost $20.25; four hot dog(s) and seven…

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A: The solution for the above question is as shown below.

Q: Marylyn is planning on saving up to buy a fancy new fangled makeup mirror. The mirror Costs $294…

A: 294/30 = 9.8 weeks

Q: You have 10 liters of juice that is 40% juice and 60% water. You want the mixture to be 70% juice…

A:

Q: (a) If Maria makes 100 minutes of long distance calls for the month, which plan costs less? OPlan A…

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Q: Jessica's electricity bill costs $32.44 per month plus $1.34 per kilowatt hour. How many kilowatt…

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Q: You work two part-time jobs. One is at a delivery service where the pay is $12 per hour and the…

A: Here we use the concept how to solve the system of of linear equations.

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A: One team is  buffalo bills. Another team is  miami dolphins. Both the team together scored 66…

Q: Two families go to a hockey game. One family purchases two adult tickets and four youth tickets for…

A: We will form two with the given data.

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.