Select the correct answer.
A chemist has 50 grams of the isotope gold-196 which has a half-life of one week. This means that the amount of the sample decreases
by half each week. Determine the equation and the graph of its solution set to represent the amount of gold-196 over the course of
several weeks.

Select The Correct Answer.A Chemist Has 50 Grams Of The Isotope Gold-196 Which Has A Half-life Of One

Answers

Answer 1

Answer:

Step-by-step explanation:

Y=25{1/2) x

Answer 2

Answer:

The answer is W.

Step-by-step explanation:

Select The Correct Answer.A Chemist Has 50 Grams Of The Isotope Gold-196 Which Has A Half-life Of One
Select The Correct Answer.A Chemist Has 50 Grams Of The Isotope Gold-196 Which Has A Half-life Of One

Related Questions

Ann works in a supermarket for $10.00 per hour. If her pay is increased to $12.00, then what is her percent increase in pay? Show your work.

Answers

Answer:

20% increase in her pay

Step-by-step explanation:

It's 20% increased, because it increased by $2, $2 goes into $10 5 times, and if you were to put that into percentages 2 is a fifth of 10 so that would 20%, because 20 is a fifth of 100.

Answer:

It's 20% increased,  

Step-by-step explanation:

because it increased by $2, $2 goes into $10 5 times, and if you were to put that into percentages 2 is a fifth of 10 so that would 20%, because 20 is a fifth of 100.

A building in the shape of a cube has a width of 30 ft., a length of 30 ft., and a height of 30 ft. An architect wants to build a scale model of the building that is 10% smaller in volume. What is the height of the new building?

Answers

Answer:

Step-by-step explanation:

The height of the scale model is 13.92 feet. (Rounding to the nearest hundredth).

Step-by-step explanation:

These are the measurements of the real building:

Height = 30 feet

Width = 30 feet

Length = 30 feet

Volume of the real building = 30 * 30 * 30 = 27,000 cubic feet

These are the measurements of the scale model:

Volume of the scale model = 10% of 27,000 cubic feet

Volume of the scale model = 0.1 * 27,000 = 2,700 cubic feet

Height = ∛ 2,700 = 13.92 feet (Rounding to nearest hundredth)

Width =  ∛ 2,700 = 13.92 feet (Rounding to nearest hundredth)

Length =∛ 2,700 = 13.92 feet (Rounding to nearest hundredth)

The height of the scale model is 13.92 feet.

Answer:

28,96 ft (round to the nearest hundreds)

Step-by-step explanation:

1) find the volume of the first cube

V = side^3 = 30^3 = 27000 ft^3

2) find the 10% of 27000

27000 / 0,1 = 2700

3) find the volume of the second cube

V = 27000- 2700 = 24300 ft^3

4) find the height

height = ∛24300 = 28,96 ft (round to the nearest hundreds)

Is the answer right? I put no solution

Answers

When I loo at the picture it seems right to me it’s always smart to double check tho ?

Answer:

the answer is x € lR

Step-by-step explanation:

can i have brainliest please

1/2 divided by n = 1/8

Answers

1/2 divide by 4/1 = 1/8
when u divide u flip the second fraction around and multiply
1/2 x 1/4 = 1/8

Find the length of AB

Answers

Answer:

35.6 units

Step-by-step explanation:

By intersecting chords theorem:

10*x = 16*16

10x = 256

x = 256/10

x = 25.6

AB = 10 + x

AB = 10 + 25.6

AB = 35.6

The school store sells markers for $0.35 each and pencils for $0.15
each. Anthony spent $2.80 to buy a total of 12 markers and pencils. How
many markers did Anthony buy?
PLEASE HELP!

Answers

4 markers and 9 pencils

What is the factorization of the trinomial below?
x² - 6x + 5
A. (x+4)(x-2)
B. (X - 5)(x - 1)
C. (x+5)(x - 1)
D. (x-4)(x - 2)

Answers

Answer:

B)

Step-by-step explanation:

The total mass of Fatin and Hanim is 68 kg. Fatin is 6 kg lighter than Hanim. Find their respective masses.​

Answers

Answer:

Hatim=37kg, Fatin=31

Step-by-step explanation:

Hatim=x, Fatin=x-x

x+x-6=68

add 6 to both sides

x+x=74

2x=74

divide both sides by 2

x=37

put in 37 fo the values determined earlier

Hatim=37, Fatin=37-6

Hatim=37, Fatin=31

check by plugging in the values

37+31=68 (or 37+37-6=68, either one works)

Given the figure below, find the values of x and z.

Answers

Answer:

x= 2

z = 106

Step-by-step explanation:

By the definition of vertically opposite angles,

(10x + 54)° = 74° [Pair of opposite angles made by two intersecting lines]

10x = 74 - 54

10x = 20

x = 2

z° + 74° = 180° [Pair of supplementary angles]

z = 180 - 74

z = 106

Find the size of the angle a.

a=

Answers

a=72

Step-by-step explanation:

2a+a+2a=360 (being complete turn )5a=360a=360/5a=72

Eva buys a piece of red fabric that is 5.6 meters long and a piece of yellow fabric that is 2.8 meters long. How long are the two pieces of fabric together in millimeters?

Answers

Answer:

Total length of fabric pieces is 8400 mm.

Step-by-step explanation:

Eva buys a piece of red fabric of length = 5.6 meters

Since, 1 meter = 1000 mm

Therefor, 5.6 meter = 5.6 × 1000

                                 = 5600 mm

Similarly, length of yellow fabric piece = 2.8 meters

                                                                ≈ 2.8 × 1000 mm

                                                                ≈ 2800 mm

If these pieces are joined together, total length of the fabric pieces

= 5600 + 2800

= 8400 mm

Therefore, total length of fabric pieces is 8400 mm.

Answer:

above is right

Step-by-step explanation:

A golf driving range charges a flat fee of $20 to practice and then $5.75 for a buckets of balls. Write an equation that models the charges (C) in terms of the number of bucket of balls (b) that you use

Answers

Answer:

A

Step-by-step explanation:

Flat fee is $20 [initial cost]

Each bucket of ball is $5.75

b is the number of buckets and c is the total cost

To get total cost, we add the flat fee with the bucket fee. Bucket fee is $5.75 multiplied by the number of buckets, which is b.

So, we have:

cost = $20 + $5.75b

In equation it is:    

Choice A is right.

Geometry: CC 2015 > Chapter 9: Chapter 9 Test > Chapter Test 9

Answers

Answer:

ohk where is test

Step-by-step explanation:

and question

Yoshi earns a commission of eight dollars on sales of $200 the amount of commission yes she earns is directly proportional to the sales what is the constant of proportionality of Yoshi sales commission

Answers

Answer:

k = constant of proportionality = 1/25

Step-by-step explanation:

Let

Amount of commission = x

Sales = y

Amount of commission she earns is directly proportional to the sales

x = k * y

Where,

k = constant of proportionality

what is the constant of proportionality of Yoshi sales commission

x = k * y

x = $8

y = $200

x = k * y

8 = k * 200

8 = 200k

k = 8/200

k = 1/25

k = constant of proportionality = 1/25

Bob has a coin cup with four $1 tokens and two $5 tokens in it. He also has two $10 tokens and one $25 token in his pocket. He
randomly draws a token from the cup, and then randomly draws a token from his pocket. What is the probability that he will draw
$30 in tokens?
A. 1/3
B. 1/9
C. 2/9
D. 4/9

Answers

Answer:

;-;

There is no 30$ tokens

Step-by-step explanation:

i guess its A or b

like the heck

Answer:

n[$1]=4

n[$5]=2

n[$10]=2

n[$15]=1

n[total]=9

getting 10=2/9

Which of the following examples has a unit rate of 30 meters per second? Select all that apply. A) 90 meters in 5 seconds B) 90 meters in 3 seconds C) 120 meters in 6 seconds D) 150 meters in 5 seconds E) 240 meters in 6 seconds

Answers

The following examples have a unit rate of 30 meters per second:

B) 90 meters in 3 seconds.

D) 150 meters in 5 seconds.

What is division?

The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.

Given:

We have the unit rate of 30 meters per second.

A) 90 meters in 5 seconds.

The unit rate = 90/5 meters per second.

The unit rate = 18 meters per second.

B) 90 meters in 3 seconds.

The unit rate = 30 meters per second.

C) 120 meters in 6 seconds.

The unit rate = 20 meters per second.

D) 150 meters in 5 seconds.

The unit rate = 30 meters per second.

E) 240 meters in 6 seconds.

The unit rate = 40 meters per second.

Therefore, B and D have the unit rate of 30 meter per second.

To learn more about the division;

https://brainly.com/question/13263114

#SPJ1

Annie's homemade chili recipe calls for 2 pounds of ground beef for every 5 cans of beans. How many pounds of ground beef does she need for 1 can of beans? *

Answers

Answer:

2/5  or 0.4 pound for 1 can

Step-by-step explanation:

Divide the number of pound by the number of cans to know how much pound per can  2/5 = 0.4

       OR  

5 cans ------------2 pounds

1 can------------------x

Cross multiplication

5x = 2

x= 2/5

3/5 + 3 1/2
Imma Need some help

Answers

Answer:

[tex]4\frac{1}{10}[/tex]

Step-by-step explanation:

Multiply 3/5 by 2 and multiply 1/2 by 5 to have equal denominators of 10.

6/10 + 3 5/10

Now just add them together to get 3 11/10.

Then finally simplify.

3 11/10 ---> 4 1/10

For what value of n does (1/36)n=216

Answers

Answer:

(1/36)^n=216

(1/2^2 * 3^2)^n=216

n=-3/2

Step-by-step explanation:

I'm smart

The mean (average) number of albums released by the four artists is 7 albums. Calculate the mean absolute deviation (MAD) of the data shown in the display below.

Answers

Answer:

I'm sorry I dint understand the question very well

The product of two numbers is 323 and the difference between them is 2. What are the two numbers?

Answers

Answer:

17 and 19

Step-by-step explanation:

17 * x = 323

x = 323 / 17

x = Second number = 19.

Step-by-step explanation:

323

2

=16×2=32

=3×1=3

=3

=16

=16,3

que es el volumen (en matematicas)

Answers

Answer:

En matemáticas, el volumen se puede definir como el espacio tridimensional encerrado por un límite u ocupado por un objeto. Aquí, los bloques y los libros ocupan espacio. ... El volumen de un objeto se mide en unidades cúbicas como centímetros cúbicos, pulgada cúbica, pie cúbico, metro cúbico.

Step-by-step explanation:

espero que esto ayude.

Solve: 5x2 + 25x = 0. (2 points)

Answers

Answer:

=−5

Step-by-step explanation:

I NEED HELP ASAP WITH EXPLANATION PLEASE!!!!!!!!!$!_!$!

which equation can you use to solve for m?

1) 5m = 105

2) 5m + 105 = 90

3) 5m + 105 = 180

4) 5m + 105 = 360​

Answers

Answer:

(3) 5m+ 105 = 180

Step-by-step explanation:

180 - 105 = 5m

Gabrielle was out at a restaurant for dinner when the bill came. His dinner came to $20. After adding in a tip, before tax, he paid $23. Find the percent tip

Answers

Answer:

75%

Step-by-step explanation:

Answer:

75%      I had this yesterday

Step-by-step explanation:

Please help me out I will give brainliest to the first correct answer

Answers

Answer:

the answer is D

y=2.5x +3

Answer:

The best answer would be D

Step-by-step explanation:

It is $2.50 per pound of berries

it is also $3 to enter the farm

Please help! And serious answers please

Answers

Answer:

I think  it is 10

Step-by-step explanation:

Well, there are 2 segment of 4 and 1 segment of 3, meaning it is about 10 away. (rounding to the nearest tenth)

what is 7 divided by 80?

Answers

Answer:

7 divided by 80 is 0.0875 .

Answer:

0.0875 as a decemial or 7/80 as a fraction

Step-by-step explanation:

Isaac chose A as the correct answer. How did he get that answer?

Answers

Step-by-step explanation:

Simplify the expression

Is the following a true or false statement about this rectangle? I have 2 pairs of sides of equal length.

Answers

Answer:

A rectangle has two pairs of opposite sides parallel, and four right angles. It is also a parallelogram, since it has two pairs of parallel sides. ... It is also a rectangle and a parallelogram. A rhombus is defined as a parallelogram with four equal sides.

Step-by-step explanation:

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