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A freight train travels at 30 mph. If the freight train is 300 miles ahead of an express train traveling at 55 mph, how long will the express train take to overtake the freight train? If x represents the distance the train traveling 30 mph travels, then the train traveling 55 mph travels x miles x + 300 miles x - 300 miles
General
2 months ago
Almost a billion people on the planet don't have access to clean drinking water." if there were 7.2×109 people in the world in 2014, then approximately what percent of them lived without clean drinking water? round to the nearest tenth of a percent.
General
2 months ago
These are the fees for sending a package by Media Mail: $\bullet$ $\$2.41$ for the first pound $\bullet$ $\$0.41$ per additional pound for the next six pounds $\bullet$ $\$0.39$ per additional pound after that For example, a two-pound package costs $\$2.82$ to send by Media Mail. If a package full of books costs $\$7.99$ to send by Media Mail, how many pounds does the package weigh? Explain your work in complete sentences. Formatting tip: To write a dollar sign, use $\verb#\$#$. If you use just $, the homework system will think that is $\LaTeX$. Please review your solution for formatting problems.
General
2 months ago
The Blackbird Oil Company is considering the purchase of 20 new jumbo oil storage tanks. The standard model holds 12,000 gallons. Its dimensions are the size of the similarly shaped jumbo model, that is, the ratio of the dimensions is 4:5.How much more storage capacity would the twenty jumbo models give Blackbird Oil?
General
2 months ago
A certain four-cylinder combination lock has 50 numbers on it. to open it, you turn to a number on the first cylinder, then to a second number on the second cylinder, and then to a third number on the third cylinder and so on until a four-number lock combination has been affected. repetitions are allowed, and any of the 50 numbers can be used at each step to form the combination. (a) how many different lock combinations are there
General
2 months ago
A company uses a computer program to create coupon codes for customers to use on its website. The codes are made up from the symbols !, #, &, and *, as well as any letter from the alphabet.The company uses the program to make a code, one character at a time.What is the probability the first character is a symbol?Enter your answer as a decimal rounded to the nearest hundredth in the box.
General
2 months ago
A goldfish cost $12. An angelfish costs 75% less. Sam paid $198 for some goldfish and angelfish. 60% of the fish he bought were angelfish. How much more money did he spend on goldfish than angelfish?
General
2 months ago
Jane and mark each build ramps to jump their remote controlled cars. both ramps are right triangles when viewed from the side. the incline of jands ramp makes a 30 dregree angle with the ground and the length of the incline ramp is 14 inches. the incline of marks ramp makes a 45 degree angle with the ground and the length of the incline ramp is 10 inches.what is the horizontal length of the base of janes ramp
General
2 months ago
A worker at the zoo calculates the amount of fish, in pounds, needed in the weekly diet of an eagle and a bear.·The eagle eats 6 pounds of food each week, and 60% of that weight must be fish.·The bear eats 105 pounds of food each week, and 25% of that weight must be fish.PART AWhat is the total number of fish, in pounds, that the eagle and bear should eat each week? Round your answer to the nearest hundredth of a pound.PART BThe zoo increases the amount of food that the bear eats each week to 115 pounds. What is the percent increase in the amount of food that the bear eats each week? Round your answer to the nearest tenth of a percent.
General
2 months ago
How many positive integers less than 2018 are divisible by at least 3, 11, or 61?
General
2 months ago
John wants to build a corral next to his barn. He has 300 feet of fencing to enclose three sides of his rectangular yard. a. What is the largest area that can be enclosed? b. What dimensions will result in the largest yard?
General
2 months ago
Rudy collects baseball cards, and he currently has 300 cards. Starting tomorrow, he will purchase 1 pack of 15 baseball cards every day, and every pack he purchases will contain 1 card of a member of his brother???s favorite team. Every time Rudy purchases a pack of cards, he will immediately trade the card of the member of his brother???s favorite team to his brother for 3 cards of members of a different team. Which of these recursive formulas produces the sequence that represents the number of baseball cards that Rudy will have at the end of each day, starting today?
General
2 months ago
2. The triangles are similar. write a similarity statement for the triangles.A. Triangle JKL ~ Triangle NPMB. Triangle JKL~ Triagle PNMC. Triangle JKL~ Triangle MNPD. Triangle JKL~ Triangle PMN
General
2 months ago
Complete the expansion of (a + b)6 with a = 1 and b = 0.3.(dont add everything together)(1 + 0.3)^6 = (____)^6 + 6(____)^5(____) + 15(____)^4(____)^2 + 20(____)^3(____)3 + 15(____)^2(____)^4 + 6(___)(___)^5 + (____)^6
General
2 months ago
On level ground, a vertical rod 12 feet tall casts a shadow 4 feet long, and at the same time a nearby vertical flagpole casts a shadow 12 feet long. how many feet tall is the flagpole?
General
2 months ago
Each chef at "sushi emperor" prepares 151515 regular rolls and 202020 vegetarian rolls daily. on tuesday, each customer ate 222 regular rolls and 333 vegetarian rolls. by the end of the day, 444 regular rolls and 111 vegetarian roll remained uneaten. how many chefs and how many customers were in "sushi emperor" on tuesday?
General
2 months ago
Two squares are drawn. The larger Square has area of 400 in.². The area of the two squares have a ratio of 1 to 4. What is the side length S of the smaller square?
General
2 months ago
A map of a public park shows a circular pond. there is a bridge along a diameter of the pond that is 0.85 mi long. you walk across the bridge, while your friend walks halfway around the pond to meet you at the other side of the bridge. how much farther does your friend walk? round your answer to the nearest hundredth. use 3.14 for π.
General
2 months ago
A high fountain of water is in the center of a circular pool of water. you walk the circumference of the pool and measure it to be 190 meters. you then stand at the edge of the pool and use a protractor to gauge the angle of elevation of the top of the fountain. it is 55°. how high is the fountain?
General
2 months ago
the average number of minutes that it took jermaine to complete his homework assignments for a week in september was 27 minutes, with a mean absolute deviation of 4 minutes. with this informatiom, which statement is true. Pls someone help me
General
2 months ago
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