If y = 5 when x = -3, find x when y = -1. %3D

Q: What is the percent change if the starting value is 25 and the final value is 30? Show all of your…

A: Percent problem....

Q: After 15 years, one fourth of the initial mass of radioactive substance has decayed. b) Evaluate the…

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Q: The population of a city was at 6,000 people in 2001. If the population grows at a rate of 1.7% each…

A: Given the population city was 6000 people in 2001. If population grows at a rate of 1.7% each year.…

Q: The population of bison in Canada was found to have a growth rate of  20%. If the If the population…

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Q: Number of bacteria in a rapidly growing culture was estimated to be 10,000 at noon, 40,000 after…

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Q: The half-life of a radioactive substance is 15 days. If we started with 20 g, how much of the…

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Q: The radioactive element polonium-210 has a half-life of 138 days. If you have 100 micrograms of…

A: The half-life equation for radioactive decay is:

Q: A radioactive substance has a half-life of 29 years. What percent remains 80 years after being to…

A: We will find the remains after 80 years in percentage.

Q: The half-life of Radium-226 is 1590 years. If a sample contains 500mg, how many mg will remain after…

A:

Q: A student has a semester GPA of 2.5 based on 15 credit hours.  This included an F in a 4 credit hour…

A: Introduction: Suppose for a particular student, the ith subject had ci credit hours, and the student…

Q: Complete the table shown to the right for the half adioactive substance.

A: topic:-calculus

Q: One type of strontium has a radioactive decay rate of 1.4% per day. If 30 pounds of this strontium…

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Q: Gary is getting a Wi-Fi hotspot that costs $35 and has a monthly data plan of $20/month. How much…

A: Given query is to find the the total cost of wifi over 2 years .

Q: A particular car model depreciates 11.8 percent anı Find the value of a $25400 car 5 years after its…

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Q: The half-life of carbon-14 is about 5730 years. a. Complete the table, which shows the amount of…

A: .

Q: If the price of gold decreases at a monthly rate of 1.8%, by what percentage does it decrease in a…

A: Consider the price of the gold is 100. Since after a period of 12 months the price of the gold…

Q: Find the population of fish at 10 years if p(0) = 1000

A: Given,  The rate of change of a fish population is  dpdt = e12t - 100  We have to find the…

Q: This year there were 3,000 new births in a county, but new births are expected to grow at a rate of…

A: This year there were 3,000 new births in a county, but new births are expected to grow at a rate of…

Q: A hospital prepares a 200 mg supply of molybdenum-99 which has a half-life of 66 hours. How much…

A:

Q: The half-life of Radium-226 is 1590 years. If a sample contains 400 mg, how many mg will remain…

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Q: The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be…

A: For the solution follow the next step.

Q: The half-life of a radioactive kind of uranium is 2 years. If you start with 5,712 grams of it, how…

A: According to question given that The half life of a radioactive kind of uranium is = 2 years A0=5712…

Q: How long will it take money to triple if it invested at the following rates 5.2% compund weekly…

A: Q

Q: A certain radioactive substance has a half-life of 38 hours. Find how long it takes for 90% of the…

A: A certain radioactive substance has a half-life of 38 hours. t1/2 = 38 hrs  We know that every…

Q: The gross domestic product, G, of Switzerland' was 685.4 billion dollars in 2013. Give a formula for…

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Q: According to Statistics Canada, in Grimshaw, Alberta, the population is declining Between 2001 and…

A: Solution

Q: In 2010, the population of Austin, Texas, was 790,390. In 2017, Austin's population was estimated to…

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Q: Find the half-life (in hours) of a radioactive substance that is reduced by 1515 percent in 6060…

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Q: Which job pays more after 7 years:  one that pays $46000 initially with a 9.6 % raise every year or…

A: Given:One that pays $46000 initially with a 9.6 % raise every year or one that pays $36000 with a…

Q: Two years ago, $5, 000.00 was placed into an investment in which the amount of money present, P,…

A: To find the amount of investment after 15 years from now.

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Q: The half-life of lodine-131 is 8 days. How many days will it take for 12 mg of lodine- 131 to be…

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Q: If the price of gold decrease at a monthly rate of 2.1%, by what percentage does it decrease in a…

A: If something is decreasing at 2.1% per month,then after 1 month we have 100%-2.1%=97.9%so after each…

Q: Jennifer Marlowe was making $43,276 in 1980. Use the CPI table to determine whát her salar would be…

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Q: If y varies inversely as x, what is the percent change in x when y is increased by 60%?

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Q: if the diameter of cross section of a wire is decreasing by 5% how much percent will be the length…

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Q: Find the half-life (in hours) of a radioactive substance that is reduced by 5 percent in 15 hours.

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Q: The population of Oregon was about 3,831,000 in 2010 and about 3,970,000 in 2014. Find the average…

A: The population of Oregon was about 3,831,000 in 2010 and about 3,970,000 in 2014.  The average rate…

Q: A certain battery has had a capa dropped to a capacity of 70 amp percent decrease in capacity.

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Q: José bought a motorboat for $ 27,000. Its useful life is 9 years and it has a residual value of $…

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Q: Find the half-life (in hours) of a radioactive substance that is reduced by 10 percent in 90 hours.

A: Half-life = 0.693/(Decay constant)

Q: Plot the dosage function for the first 80 seconds.

A: Use a graphing utility to plot the dosage function.

Q: The price of a particular model car is $13,857 today, and rises at a constant rate of $1203 per…

A: Calculate the rise in value of car in 4.7 years and then add it to the initial value of car.

Q: A boat is worth $7,000 when it is 5 years old and $2,000 when it is 10 years old. What is the rate…

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Q: Click cell J9, and insert a formula that calculates the percentage change in value by subtracting…

A: Change in value by subtracting the Issue Price from the Current Value is (I9-F9). Where 9 is row…

Q: If the price of gold decreases at a monthly rate of 2.6% by what percentage does it decrease in a…

A: We have to find given percentage decrease.

Q: A  machine is purchased for $6500.  It is expected to last 8 years and have a residual value of…

A: $725

Q: An unknown radioactive element decays into non-radioactive substances. In 700 days the radioactivity…

A: An unknown radioactive element decays into non radioactive substances. In 700 days, the…

Q: The population of deer in Culberson County, Texas, is declining at an estimated rate of 0.8% per…

A:

Q: How many months will it take $830 invested at 8.1% to earn $210 interest?

A: Given that:                         Principal amount, P = $830…