During a research experiment, it was found that the number of bacteria in a culture grew at a rate proportional to its size. At 9 am there were 2,000 bacteria present in the culture. At noon, the...

During a research experiment, it was found that the number of bacteria in a culture grew at a rate proportional to its size. At 9 am there were 2,000 bacteria present in the culture. At noon, the...

answer needs to be rounded to the nearest tenth

I need the steps to finding the answer. its an algebraic question

Big Ideas Math saids that I am wrong even though I think I am right.

please help ive been doing rise over run but i think im missing something

story problem

Translate the phrase into a mathematical expression and then simplify. Use the variable x. The sum of eight times a number and four times the same number. Write the phrase as a mathematical...

Milan made $126 for 7 hours of work. At the same rate, how much would he make for 13 hours of work?

Doug travels 4 times as fast as Eric. Traveling in opposite directions, they are 420 miles apart after 6 hours. Find their rates of travel.

Answer choices are A)2.2 mph B)2.8 mph C)3.8 mph D)5.1 mph E)6.3 mph Simple looking question really has me stumped, and I need help on how to solve it.

At Rhonda's diner, five loaded baked potatoes and four cheeseburgers provide 4830 calories. One loaded baked potato and four cheeseburgers provide 2630 calories. Find the calorie content of each item...

You are watering a garden. The height h (in feet) of water spraying from the garden hose can be modeled bu h(x)=-0.1x2 + 0.7x +3, where x is the horizontal distance (in feet) from...

need help im lost in this problem

i think in word form its throwing me off please help

The sum of two numbers is 63. The sum of the smaller and 7 times the larger is 261. find the two numbers

A student incorrectly graphs the data and plots the volume on the y-axis and the mass on the x-axis. How will this affect the units for the slope of the line? What will the student need to do mathematically...

A tortoise is moving at a rate of 2 feet per minute, while a hare is running at a rate of 8 feet per minute. If the tortoise had a head start of 180 feet, how long will it take for the tortoise...

A chemist has three different acid solutions. The first acid solution contains 15% acid, the second contains 25%, and the third contains 70%. He wants to use all three solutions...

A Spanish class has a total of 37 students. The number of males is 9 more than the number of females. How many males and how many females are in the class?

A food truck sells 90 hot dogs each day when it charges $2.00 per hot dog. For a $0.50 decrease in price, the food truck sells 15 more hot dogs.