1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
s2008m [1.1K]
3 years ago
12

Suppose a tank leaks toxic chemicals. The area affected is a circle centered on the tank. When the spill is first noticed, the c

ircle has a radius of 60 meters. A response team arrives 70 minutes later, by which time the affected area has grown to a circle with a radius of 80 meters.
Required:
How rapidly was the radius of the spill changing between the time the spill was noticed and the arrival of the response team?
Mathematics
1 answer:
cricket20 [7]3 years ago
8 0

Answer:

0.5 ft per min

Step-by-step explanation:

in 80 minutes the radius expanded by 40%

we can set up a proportion of percent change over minutes:

.4/80 = r/1

cross-multiply to get:

80r = .4

r = .005 or 1/2 of a foot per minute.

Hope It Helps :)

You might be interested in
Solve and then use estimation to make sure your answer is reasonable.
olga2289 [7]
Assuming that he read at the same speed last summer, 2,724 pages.
3 0
2 years ago
The quarterback for the Dallas Cowboys throws a pass and gains 11 yards on the first down but then
jok3333 [9.3K]
B. -1
11-12=-1
Hope this helps!
6 0
3 years ago
Hlpppp meee hshshdjdjdj​
lilavasa [31]

Answer:

its b

Step-by-step explanation:

3 0
3 years ago
Amy said 4/9 of her teammates got hits during a recent softball game. Which decimal represents this same amount?
trapecia [35]

Answer:

.....Your answer is D

...

.

6 0
3 years ago
I’m so confused please help I can’t afford another bad grade
iogann1982 [59]

Answer:

2

Step-by-step explanation:

x / (3y)

Let x = 18 and y = 3

18 / ( 3*3)

Determine the denominator first

18 / ( 9)

Divide

2

8 0
2 years ago
Other questions:
  • What is 79/200 written as a percent?
    12·1 answer
  • 16x+9=9y-2x how do i slove this?
    6·2 answers
  • A shelter house has a floor area of 400 squard feet. If 3 identical shelter house are bulit, what is the combined floor area of
    10·2 answers
  • Simplify
    14·1 answer
  • Please helpp with this!!
    8·1 answer
  • you can spend up to 35 dollars on a shopping trip. you want to buy a shirt that costs 14 dollars. write and solve an inequality
    7·1 answer
  • Simplify 3x+2x <br> BRAINLIEST
    5·2 answers
  • A cook needs 42 pieces of tomato for salads The cook has 4 tomatoes He cuts each tomato into 6 pieces
    12·1 answer
  • Oakwood Cinema has a theater screen with a diagonal length of 66 feet. The ratio of the length to width is 19:10. What are the a
    8·1 answer
  • Example 2.20
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!