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
fiasKO [112]
3 years ago
14

An element with a mass of 890 grams decays by 19.7% per minute. To the nearest tenth of a minute, how long will it be until ther

e are 220 grams of the element remaining?
Mathematics
2 answers:
Schach [20]3 years ago
6 0

Answer:

3 minutes

Step-by-step explanation:

vlabodo [156]3 years ago
5 0

Answer:

6.4

Step-by-step explanation:

You might be interested in
The smallest of three consecutive integers is 24 less than the sum of the two larger integers. Find the three integers.
harkovskaia [24]

Answer:

21, 22, 23

Step-by-step explanation:

Construct equations representing each piece of information.

Three consecutive integers are three numbers in a row, for example, 1, 2 and 3.

Let's let

Integer 1 = X

Integer 2 = Y

Integer 3 = Z

X = (Y + Z) - 24

We also know that

Y = X + 1

and Z = X + 2

We can now sub this information into the first equation. We do this so that we can have only one variable in the equation.

X = (X+1) + (X+2) - 24

now solve for x,

X = 2X + 3 - 24

X = 2X - 21

-X = - 21

X = 21

So, the integers are 21, 22, 23

3 0
3 years ago
Please help! Brainliest answer! thank you!1
kobusy [5.1K]

Answer:

I think it's A

Step-by-step explanation:

because none of the others appear to be correct

5 0
3 years ago
Read 2 more answers
Mr. Hammond earns $13.75 per hours and worked 20.5 hours last week. How much did he earn last week?
IRISSAK [1]

Multiply total hours worked by pay rate:

20.5 x $13.75 = $281.88

8 0
3 years ago
it took 48 minutes to drive downtown. An app estimated it would be less than that. If the error was 20%, what was the apps estim
natulia [17]

Answer:

38.4

Step-by-step explanation:

it took 48 minutes and the app miss estimated by 9.6, which is 20% of 48. So subtract 9.6 from 48 and you will get 38.4

8 0
3 years ago
The table shows a bicycle rider moving at a constant rate of speed.
Mariana [72]
<h2><u>Answer:</u></h2><h2>\boxed{\boxed{\sf{Distance}}}</h2><h2 /><h2><u>Solution Steps:</u></h2>

______________________________

<h3>1.) Dependent Variable:</h3>
  • A dependent variable is almost always the (y) variable. This also means it depends on another variable. The way you can tell it's dependent for this problem is that the per the rule: distance = time. This means that the distance changes based on the time.
  • (y) depends on (x)

So your answer is Distance.

______________________________

7 0
2 years ago
Other questions:
  • Find the product: (74.862)(5.901
    10·1 answer
  • this week Shauna practiced her saxophone for 25 minutes less than 3 times the number of minutes she practiced last week. if she
    15·1 answer
  • Drag a statement or reason to each box to compete this proof.
    6·1 answer
  • What is the range of the function f(x) = |x| – 3? All real numbers b. All real numbers less than or equal to 3. C all real numbe
    9·1 answer
  • Does the graph below show a proportional<br> relationship? Why or why not?
    12·1 answer
  • Can someone help me?<br><br> 12 1/2 - (-4 1/2) =
    9·1 answer
  • What is the solution to the system of equations?
    10·1 answer
  • Gabriel is playing a board game. When it is his turn, he tosses a three-dimensional figure that has 6 square faces. What kind of
    13·1 answer
  • Yo is arjun du.mb <br> csCsscasxsCSc
    11·2 answers
  • Cos²(90° -X).tan(180°-X).cos(180°+X)/sin(180°-X)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!