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A: Each level of the Richter scale is 10 times than the previous level. One earthquake measures 4.5 and…
Q: John invests a total of $20,000, part at 10% and part at 12%. His total for one year is $2160. How…
A: Let the amount John invests at 10% = xLet the amount John invests at 12%=yFormulating equations:
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A: Hope it is useful
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A:
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Q: When 400 mg of the painkiller ibuprofen is swallowed, the number of milligrams n in the bloodstream.…
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Q: Alan, Betty, and Carol invested in a corporation in the ratio of 6:7:8 respectively. If they…
A: Explanation and solutions is given below....
Q: It takes Diane 3 hours to process a job. At this rate, how many jobs can she process in t hours? t+3…
A: so , we will choice correct option.
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A: Let x be the unknown quantity of 50% silver. The silver concentrations will be 0.5x of actual…
Q: Pure water has a pH value of 7.0. How many times more acidic is milk, with a pH value of 6.4, than…
A: Given that: pH value of Pure water = 7.0 pH value of Milk = 6.4
Q: A number w increased by 3 is greater than – 18.
A:
Q: Jefferson High School is looking to expand its student parking lot by expanding the existing lot as…
A: Area of of school A=165*300=49500 sq ft
Q: population in 1994 was about 5.63 billion, growing at a rate of 2% annually; What is the population…
A: Please refer to the image below
Q: In a class experiment, a student needs 5 Liters of 6% solution. He found a 4% and a 10% solution in…
A: Let a=Volume in liters of 4% solutionand b=Volume in liters of 10% solution.Therefore, a+b=5⇒b=5-a
Q: Equal amounts are invested at 3%, 7%, and 9% annual interest. If the three investments yield a total…
A: Given, Equal amounts are invested at 3%, 7%, and 9% annual interest. The three investments yield a…
Q: PML- TRQ 35 M T 2r + 2 |14 7x – 9 L
A: In the figure, it is given that: △PML~△TRQ Also, PM=35LM=7x-9RQ=2x+2TR=14
Q: a small herd of cattle consumes fourteen bales of hay in 2 weeks. how many bales will this herd…
A: Given:Herd of cattle consumes fourteen bales of hay in 2 weeks.
Q: the number of accidents for 3 years recorded in a certain section of a highway is 350. If the…
A:
Q: Jay is mixing 30 ounces of a 5% glucose solution with a 9% glucose solution. This mixture produces…
A:
Q: Rhiana is 3 years younger than half of her sister Diana's age. If d is Diana's age, is Rhiana's age,…
A: We can find the age of Rhiana in terms of d in the following step
Q: You need 760 mL of a 40% alcohol solution. On hand, you have a 95% alcohol mixture. How much of the…
A: Let the amount of 95% alcohol mixture to be added= x ml Let the amount of pure water to be added= y…
Q: It took Shekinah four hours to install 64 square feet of tile in her kitchen, If she continues…
A:
Q: You need 1050 mL of a 30% alcohol solution. On hand, you have a 25% alcohol mixture. How much of the…
A:
Q: One earthquake has a manitude of 3.9 on the MMS. If a second earthquake has 600 times as much energy…
A: Use the formula for the magnitude of earthquake in energy form.
Q: 2.1X10° IS now many times the Valne Of H.2 4.2X102?
A: Construct the problem by putting x times.Then we solve the problem.
Q: Gabe amigo a nuclear physicist. needs 50 L of a 60% acid solution. he currently has 20% solution and…
A: Mixture problems:concentration of solution A: 0.2quantity of solution A: x litersconcentration of…
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A: Given: There are two types of solution One contain 80% antifreeze and other contain 20% antifreeze…
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A:
Q: Mrs. Jacobs is making several batches of cookies and is using 84 total ounces of chips. The cookies…
A: There are two kinds of cookies 1. Chocolate chips 2.Peanut butter chips. The number of chocolate…
Q: A small herd of cattle consumes fourteen bales of hay in two weeks. How many bales will this herd…
A: To determine: A small herd of cattle consumes fourteen bales of hay in two weeks. How many bales…
Q: You'need a 55% alcohol solution. On hand, you have a 120 mL of a 50% alcohol mixture. You also have…
A: Needed amount of alcohol solution =55%
Q: 7. S d.x 25x²+36
A:
Q: During a nationwide program to immunize the population against a new strain of the flu, public…
A: (ii) It is given that cost of inoculating x% of the susceptible population would be approximately…
Q: Sol Lushen, a chemistry student, has two solutions, solution A and solution B. Solution A contains…
A: Let the amount of solution A be x And the amount of solution B be y.
Q: Giren two feeds with one containing proterin and the ether containing 17% coude profein, how much…
A: Solve the given
Q: Micheal has completed 9 deliveries so far this week. He needs to make 60 deliveries for the week.…
A: Micheal needs to deliver 60 for a week.He delivered 9 for the week.
Q: Theophylline, an asthma medicine, is to be prepared from an elixir with a drug concentration of 5…
A:
Q: during a 5 day week jesse spent 225 minutes driving in the car at this rate how many minutes will…
A: Here the time Jess spent driving in a 5 day week is given. So considering time that the car is…
Q: A small store sells spearmint tea at $3.11 an ounce and peppermint tea at $5.21 per ounce. The store…
A: Given: A small store sells spearmint tea at $3.11 an ounce and peppermint tea at $5.21 per ounce.…
Q: The magnitude of earthquake A is 3.8. If earthquake B is 10,000 times as intense as earthquake A,…
A: The solution is given below :
Q: Two thirds of a cup of Healthy SnackOs provides your full daily value of vitamin B. You ate of a cup…
A: The expression, "two thirds of x" can be written as 2x3 . The expression, 1xy is same as yx .
Q: You need a 50% alcohol solution. On hand, you have a 500 mL of a 95% alcohol mixture. How much pure…
A:
Q: Approximately 50% of newborn babies weigh more than pounds. What percent of newborn babies weigh…
A: The mean is 7.5 and the standard deviation is 0.6.
Q: Keiko needs 100mL of a 5% acid solution for a science experiment. She has available a 1% solution…
A:
Q: For a particular brand of coffee beans, the cost is proportional to the weight of beans You…
A: Cost of 7 ounces = $3.99 Therefore cost of 1 ounce = ($3.99/7) Since $15 is spend to purchase the…
Q: d) studies more than 2 hours e) studies less than 2 hours f) studies more than 2 hours given that he…
A: Here as per POLICY I HAVE CALCULATED 3 SUBPART PLZ REPOST FOR REMAINING
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A: Let the value of Vanilla cake be x So the value of chocolate cake is 4x And the value of Cherry cake…
Q: During a nationwide program to immunize the population against a new strain of the flu, public…
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Q: S3.75 is made up of quarters and half dollars. If the number of quarters exceeds the number of…
A:
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- The mix Ricardo plans to use to make brownies says that each brownie will be 190 calories, and 76 calories are from fat. What percent of the total calories are from fat? Round the answer to the nearest whole percent.It takes Sam 4 hours to rake the front lawn while his brother, Dave, can rake the lawn in 2 hours. How long will it take them to rake the lawn working together?Ronald can shovel the driveway in 4 hours, but if his brother Donald helps it would take 2 hours. How long would it take Donald to shovel the driveway alone?
- Corey and Nicole are traveling to Japan and need to exchange $600 into Japanese yen. It each dollar is 94.1 yen, how many yen will they get?One gardener can mow a golf course in 4 hours, while another gardener can mow the same golf course in 6 hours. How long would it take if the two gardeners worked together to mow the golf course?If our phone with 10 gigabytes of free storage downloads a game that takes of 76 megabytes, how much free storage is left?
- A photographer is mixing 2 liters of a 10% acetic acid solution with a 5% solution to get a 7% solution. How many liters of 5% solution should be add?A toy maker finds that it costs C = 750 + 3.80x dollars to manufacture x toy trucks. If the budget allows $3600 in costs, how many trucks can be made?The sports store sold three times as many basketballs as footballs last month. If they sold 140 fewer footballs than basketballs, how many of each type of ball did they sell last month?
- With x people on board, a South African airline makes a profit of (960−3x) rands per person for a specific flight. A. How many people would the airline prefer to have on board?During a vacation together , Bob spent twice as much as Josh, who spent four times as much as Ralph . If Bob and Ralph together spent $ 180 , how much did Josh spend?n their most recent 8-mile training run, Pepe averaged a speed of 1212 of a mile in 4.5 minutes, while Paula averaged 3434 of a mile in 7.5 minutes.How many minutes did it take the faster runner to finish the 8 mile run?