For a hot air balloon to take off, the temperature of the air outside the balloon must be at least 15°F cooler than the temperature of the air inside of the balloon. In interval form, what is the temperature inside the balloon if it is 70°F outside?

Q: A ferry leaves a harbor and travels to a resort island at an average speed of 22 mph. On the return…

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Q: an item is advertised as 50% off the original price, and the sake price is $21.30. what was the…

A: Consider the provided question, Since, an item is advertised as 50% off the original price. And, the…

Q: From a table inside a room with current temperature of 35 degrees Celsius, a left over Fried Chicken…

A: For thsi problem we use the Newton's Law of cooling:T-Tr=(T0-Tr)e-ktNotice that hereT=temperature at…

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A: Total distance = 3458 miles Tailwind speed = 70 mph Plane still speed = 860 mph Let d be the…

Q: The Denver Post reported that, on average, a large shopping center had an incident of shoplifting…

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Q: A class average mark in an exam is 70. The average of students who scored below 60 is 50. The…

A: Let x students scored below 60 and y students scored 60 or more.  So, x+y=20  the total number of…

Q: Can you also provide how many tickets should be sold at $40?

A: Let's find tickets sold at $40.

Q: You are standing on the middle rung of a ladder. If you first move up 3 rungs, then move down 5…

A: Please refer the attached image for complete solution.

Q: A six foot tall man casts a shadow of 3.5 feet at the same time a tree casts a shadow of 21 feet.…

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Q: The loonie store sells candies for 30 cents each and gum for 60 cents each. If a customer bought 20…

A: Let the customer bought x candies and y gums A.T.Q x+y=20 ____________ (1) 30x+60y=900 ___________…

Q: In London today, four times the high temperature was more than twice the high temperature plus…

A:

Q: Trent worked for 20 consecutive days, earning an average wage of $ 120 per day. During the first 12…

A: Given: The average wage is $120 per day The first 12 days the average wage is $124 per day Last 7…

Q: In a class of 24 students, 23 exams are graded. The average for the class was 85. What would the…

A: Given, Class contain 24 in which 23 have already graded. The average of these 23 students was 85.

Q: A tortoise is walking in the desert. It walks for 93.75 meters at a speed of 3 meters per minute.…

A:

Q: A recipe for a pizza that serves 12 people calls for 2 cups of shredded cheese. If each bag pf…

A: Ans: Given , A recipe of pizza that serves 12 people calls for 2 cups of shredded cheese. If each…

Q: In 2014, a high school stage collapsed in Fullerton, California, when 250 students got on stage for…

A: Given that when 250 students got on stage , where 24 got injured. But the stage could support a…

Q: A deep sea diver begins at -57 feet below sea level. He travels at 5 feet a minute. How many minutes…

A: Given, a deep sea diver begins at -57 feet below sea level and he travels at 5 feet a minute. To get…

Q: rough opening for a window measures 36 3/8 inches. The window to be placed in the rough opening…

A:

Q: Alex is 9 feet away from his car when he begins walking directly away from his car at a constant…

A: Solution of above question is written below.

Q: In a garrison of 30 men there was food provision for 10 days if 20 more men arrived then find the…

A: Given in a garrison of 30 men there was food provision for 10 days. To find the number of days the…

Q: Supposed Stephanie drove 100 miles and then increased to speed by 30 mph for the following 200…

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Q: A ratio is equal to 5:7 ,if it's antecedent is 35 what is the consequent

A: TO CALCULATE ' CONSEQUENT ' GIVEN ANTECEDENT = 35 = a a : b = 5 :7 CONCEPT a = antecedent b =…

Q: The tank is filled two-thirds of the way. If it costs $0.04 per cubic ft. of water to fill the tank,…

A: We have to follow fellowing step: 1) calculate volume of the tank 2) calculate volume of water…

Q: A contest will have five cash prizes totaling $5000, and there will be a $100 difference between…

A: Given, a contest will have five cash prizes totaling ,  $5000,and there will be a %100 difference…

Q: A basketball player has made 12 of his last 20 free throws, which is a free throw percentage of 60%.…

A: Given,  The total number of throws the basketball player made = 20 Number of successful free throw =…

Q: Answer: 91- A basketball team scored a total of 1470 points over the course of its 21-game season,…

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Q: At a sale, a sofa is being sold for 67% of the regular price. The sale price is $402. What is the…

A: let regular price of sofa=$ x

Q: 4-Sally drove for 500 mi, the last 150 mi she decreased the speed by 35 mph. If her total driving…

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Q: The engine of an armored personnel carrier returning from an exercise, its temperature, which is 100…

A: Given :- The engine of an armored personnel carrier returning from an exercise, its temperature,…

Q: thermometer 18 degrees Fahrenheit is brought into a room where the temperature is 70 degrees…

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Q: To gain 25% after allowing a discount of 10% , the shopkeeper must mark the price of the article…

A: Given:Let x be actual price of articleDiscount of 10% of articleTo gain 25%Price price of…

Q: on the day when the temperature is 30 degree celsius, a cool drink is taken from refrigerator whose…

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Q: Amir who lived in Texas moved to Virginia. Because of this move his annual salary increased from…

A: Amir who lived in Texas moved to Virginia. Because of this move his annual salary increased from…

Q: For a school project, Ely will get 25 points for an oral presentation, with an additional 5 points…

A: Given ,  For a school project , Ely get 25 points on oral presentation , with an additional 5 points…

Q: A thermometer is taken from a room where the temperature is 23C to the outdoors, where the…

A: According to the given information, A thermometer is taken from a room where temperature is 23C to…

Q: A worker’s wage depends on the number of hours he works. If his wage for 5 hours is ₱300, how much…

A: Wage

Q: A mountain is 18,541 feet above sea level, and a valley is 342 feet below sea level. What is the…

A: 16 Given that a mountain is 18,541 feet above sea level and a valley is 342 feet below sea level. We…

Q: At a hot air balloon festival, Mohamed's balloon is at an altitude of 40 m and rises 10 m/min.…

A: Given that at a hot air balloon festival, Mohamed's balloon is at an altitude of 40 m and rises 10…

Q: Two crooks rob a bank and flee to the east at 51 mph. In 30 minutes, the police follow them in a…

A: Consider the equation for the speed, distance and time. Let the time when the police overtake the…

Q: A merchant increases the wholesale cost of a Maytag washing machine by 20% to determine the selling…

A:

Q: A roast turkey is taken from an oven when its temperature has reached 190 degrees Fahrenheit and is…

A: This is a problem with Newton's law of cooling.

Q: Darius left his house at 9:00 am and traveled at 60 miles per hour for 330 miles.  What time was it…

A: topic - algebraic operations

Q: The Clown fish at the zoo requires the 434 gallon tank to be 8% salt. After a period of time, some…

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Q: You come along just as a church lottery is closing; its prize is a quilt worth $100 to you, but…

A: If 1 ticket is bought, the chance to win $100 is 1/26, which is very less.If 100 or more tickets are…

Q: A 9​-foot-tall man is standing next to a building. The​ man's shadow is 6 feet long. At the same​…

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Q: The temperature of a metal ingot is 60°C above room temperature right now. Ten minutes ago, it was…

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Q: 2.) Holly wants to build a slide that is 24 feet long, but is not sure how high up she will need to…

A: Given that:                   Length of slide, s = 24ftDistance between slide and ladder, d = 8ft

Q: Monthly, Juan's net earnings are $8,000, and expenses are $7,000. If Juan saves the difference, how…

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Q: Krysten’s job requires that she work for 8 hours. This does not include the 45 minutes break that…

A: