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
vivado [14]
3 years ago
6

Eric starts with 10 milligrams of a radioactive substance. The amount of the substance decreases by 12 each week for a number of

weeks, w. He writes the expression 10(12)w to find the amount of radioactive substance remaining after w weeks. Andrea starts with 1 milligram of a radioactive substance. The amount of the substance decreases by 20% each week for a number of weeks, w. She writes the expression (1−0.2)w to find the amount of radioactive substance remaining after w weeks. Use the drop-down menus to explain what each part of Eric’s and Andrea’s expressions mean.
Mathematics
2 answers:
Nady [450]3 years ago
7 0

Answer:

In Pic

Brainliest?

Step-by-step explanation:

Vesna [10]3 years ago
6 0

Answer: Mark as brainliest "If" help

Step-by-step explanation: Hope It helps,,

You might be interested in
The amount of interest accrued on<br> a $7,000 loan with 6% interest after t years.
Misha Larkins [42]

Answer:

$420t

Step-by-step explanation:

Given data

Principal= $7000

Rate= 6%

Time= t years

The expression for the amount is

Simple interest= PRT/100

Sustitute

Simple interest= 7000*6*t/100

Simple interest= 42000t/100

Simple interest= 420t

Hence the amount after t years is $420t

6 0
3 years ago
Solve for w.<br><br> 5w + 9z = 2z + 3w
DIA [1.3K]
When solving for a variable, you get the variable you're trying to solve for on one side and everything to the opposite of that variable.

We have the equation <span>5w + 9z = 2z + 3w.

Usually the variable we're solving for we want on the left. But it's fine to have it on the right side, too.

Let's subtract 9z from the left-hand side. That way, the 5w will be alone on the left-hand side.

And remember, anything we do on one side we do to the other side.

</span><span>5w + 9z - 9z = 2z + 3w - 9z
</span><span>5w = -7z + 3w

The 3w term on the right-hand side needs to be removed. So, subtract each side by 3w.

5w - 3w = -7z + 3w - 3w
2w = -7z

Now, we need to divide each side by 2 to see what the w variable is equal to.

2w / 2 = -7z / 2
w = -7z / 2 or w = -3.5z

So, w is equal to -3.5z.

</span>
7 0
3 years ago
Read 2 more answers
A party rental company has chairs and tables for rent. The total cost to rent
dlinn [17]
I do not have any idea and any operation did you do it wrong or something because I do not get it
6 0
3 years ago
Please help......................................
morpeh [17]

given:

she had: $35.13

+ her mom gave her: $7.50

+ she was paid $10.35

- add all of these up for total.

35.13 + 7.50 + 10.35

= $52.98

<em>look back at the answer i posted before for explanations. the answer for this would be 4/14, which is simplified to 2/7.</em>

<em />

7 0
2 years ago
You buy a game for $40, and the sales tax is $2. What percent of the game price are you paying in sales tax?
Andreas93 [3]
To get the answer we can use proportion
40$ ------------- 100%
2$ ---------------- x
crossmultiply now
40x=2*100           /:40
x=200:40
x=5% - its the answer
6 0
3 years ago
Read 2 more answers
Other questions:
  • The Allied Taxi Company charges $2.50 to pick up a passenger and then adds $1.95 per mile. Isaac was charged $27.46 to go from o
    14·1 answer
  • At Greg's Gas Station premium gasoline costs $0.14 more per gallon than regular gasoline . If Mr. Adams spent $36.25 on 12.5 gal
    13·1 answer
  • What is the horizontal distance that your bridge must span to clear the ravine?
    5·2 answers
  • There are 12 go-carts and each of the go-carts has 4 tires. If the owner of the go-carts buys 12 spare tires, how many tires are
    11·2 answers
  • If f(n) = 4n + 7 and g(n) = 2n + 3, find (g - f)(n).
    6·1 answer
  • Help!...................
    11·1 answer
  • A composite shape is shown
    14·2 answers
  • 1. How many tiles would be in Figure 5?*
    8·1 answer
  • An artist is constructing a piece of art in the shape of rectangle. The artist wants to use string to tightly tie each vertex of
    15·1 answer
  • AABC goes through a sequence of transformations to form ABC. The sequence of transformations involved is a followed by a
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!