Write the model of a 50 gram substance that decays at a rate of 3% yearly

Answer:

16,800 in^3

Step-by-step explanation:

Volume of a box = length x width x height

or base area x height

672 x 25 = 16,800 in^3

Answer:

$100.80

Step-by-step explanation:

Total money = 28.80 (Jasmine) + 2.5 x 28.80 (Sister)

Total money = 28.80 + 72 = $100.80

Answer:

$100.80

Step-by-step explanation:

y=28.80+(28.80x2.5)

y=28.80+72

y=100.80

hope this helps :)

Answer:

B

Step-by-step explanation:

Use Desmos graphing calculator

Answer:

x = -2y^2

Explanation Part 1:

It's not vertical, and thus it's not a standard (y = ax^2 + b) parabola.

This must mean it's either x = 2y^2 or x = -2y^2

Explanation Part 2:

You can test values into either one to check if it works

Take (-2, 1) for example, doesn't have to be a precise coordinate pair:

First Equation

x = 2y^2

-2 = 2(1)^2

-2 = 2(1)

-2 = 2

DOESN'T WORK!

Second Equation

x = -2y^2

-2 = -2(-1)^2

-2 = -2(1)

-2 = -2

IT WORKS!

Answer: 5..6 in.

Step-by-step explanation:

Given

Hypotenuse of isosceles triangle is 8 inches

In isosceles triangle two sides are equal

Suppose the other side is x

Using Pythagoras we can write

[tex]\Rightarrow x^2+x^2=8^2\\\Rightarrow 2x^2=64\\\Rightarrow x^2=32\\\Rightarrow x=4\sqrt{2}\approx 5.6\ in.[/tex]

Therefore, the lengths of the legs is 5.6 inches

Answer:

29(!£6287&7&(&

Step-by-step explanation:

That's it ty

Answer:

-176

Step-by-step explanation:

Let x = -8

f(-8) = 11 (-8-24) / 2

         Simplify the parentheses

f(-8) = 11 ( -32)/2

        = 11 (-16)

        = 176

Answer:

290 gramas

Step-by-step explanation:

Podemos interpretar a questão acima matematicamente como:

3 pacotes = 870 gramas

1 pacote = x

Multiplicação cruzada

3x = 1 × 870 gramas

Divida os dois lados por 3

3x / 3 = 1 × 870 gramas / 3

x = 290 gramas

Portanto, cada pacote conteria 290 gramas de carne moída

Answer: The answer is 12/25

Step-by-step explanation:

Answer:

1 1/8

Step-by-step explanation:

Answer:

3.14159369398579323..... and so on

Answer:

I think it is 50%

Step-by-step explanation:

Correct me if I am wrong

Answer: 3/2

Step-by-step explanation:

Answer:

25

Step-by-step explanation:

We already have our first value 36 and the second value 144. Let's assume the unknown value is Y which answer we will find out.

As we have all the required values we need, Now we can put them in a simple mathematical formula as below:

STEP 1 Y =  36/ 144

By multiplying both numerator and denominator by 100 we will get:

STEP 2 Y =  36/ 144  ×  100/ 100 =  25/ 100

STEP 3 Y = 25

Finally, we have found the value of Y which is 25 and that is our answer.

If you want to use a calculator to find 36 is what percent of 144, simply enter 36 ÷ 144 × 100 and you will get your answer which is 25

Answer: 7

Step-by-step explanation:

i think it right could be wrong tho

Answer:

Solution given:

length[a]=3cm

base(b)=7cm

hypotenuse [c]=?

we have

by using Pythagoras law

a²+b²=c²

3²+7²=c²

c=√58=7.61m

the length of the hypotenuse is 7.61m.

Answer:

12   50/50 chance

Step-by-step explanation:

Answer:

C. if 10x is the door she have to knock so the -30 is how much she will earn during the week and if she doesn't knock any then she will lose the whole $30 dollars . sorry i can't explain myself good but i think it is so

Answer: B and C (took the test)

Step-by-step explanation:

B. Her expenses are $30 per week

C. If she does not knock on any doors at all during the week, she will lose $30.

Answer:

6

Step-by-step explanation: you just divide -5 by -30 to get 6

Answer:

30/5 is 6

Step-by-step explanation:

you have to divide to get x alone

0.65 represent the percent of battery life remaining decreases by 65% each hour. Option D is correct.

A mathematical statement consisting of an equal symbol between two algebraic expressions with the same value is known as an equation.

The fact that the exponential growth function's equation is provided by;

y=a(1+r)ˣ

Given expression;

y = 100(0.65)ˣ

Y represents the percent of battery life

The number of hours x

The battery life percentage declines by 65 percent per hour, or 0.65.

Hence option D is correct.

To learn more, about equations, refer;

https://brainly.com/question/10413253

#SPJ1

Answer:

Step-by-step explanation:

Try dividing the first equation by 3.  The result will be identical to the second equation.  Thus, we have two lines that coincide, and therefore there are an infinite number of solutions.

Answer:

I think the answer is 48

Step-by-step explanation:

2^3 = 8

8 x 5 = 40

40 + 8 = 48

Answer:

19958

Step-by-step explanation:

20237-(-279)

20237+279

Answer:

the pickup truck went 45 mph

the bus went 30mph

Step-by-step explanation:

uh i just guessed tbh & got it right

Step-by-step Solution

Problem to solve: 6x−8y−5х+3y

solving method: simplifying

Combining like terms -8yand 3y

6x−5y−5

Final Answer:

6x−5y−5

Step-by-step explanation:

=>6x-5x-8y+3y first combine like terms together then add the like terms with x and substruct like terms with y

=>x-5y is the answer

Answer:

50

Step-by-step explanation:

because 89-49=49 49 rouded to the nearest ten is 50

Answer:

The right solution is:

(1) 138

(2) 22

Step-by-step explanation:

The given values are:

t = 6

c = 3

b = 5

(1)

The given expression is:

=  [tex]120+3t[/tex]

On putting the value of "t", we get

=  [tex]120+3(6)[/tex]

=  [tex]120+18[/tex]

=  [tex]138[/tex]

(2)

The given expression is:

=  [tex]4c+2b[/tex]

On putting the values, we get

=  [tex]4(3)+2(5)[/tex]

=  [tex]12+10[/tex]

=  [tex]22[/tex]

Answer:

The value of the tangent is [tex]-\frac{4}{5}[/tex].

Step-by-step explanation:

Let be [tex]A(x,y) = (-10, 8)[/tex] on the terminal side of an angle in standard position and let be [tex]O(x,y)[/tex] the origin of the angle and the origin of the Cartesian plane. By definition of tangent, we make use of the following expression:

[tex]\tan \theta = \frac{y_{A}-y_{O}}{x_{A}-x_{O}}[/tex] (1)

Where:

[tex]x_{A}, x_{O}[/tex] - x-Coordinates of point A and point O.

[tex]y_{A}, y_{O}[/tex] - y-Coordinates of point A and point O.

If we know that [tex]x_{A} = -10, x_{O} = 0[/tex], [tex]y_{A} = 8[/tex] and [tex]y_{O} = 0[/tex], then the value of the tangent is:

[tex]\tan \theta = \frac{y_{A}-y_{O}}{x_{A}-x_{O}}[/tex]

[tex]\tan \theta = \frac{8-0}{-10-0}[/tex]

[tex]\tan \theta = -\frac{4}{5}[/tex]

Answer:

5 years

Step-by-step explanation:

Given that

The current population is 45,000

The rate of interest in declining would be 4.5% per year

The expected population is 35,746

We need to find out the no of years

Since the rate of interest decrease by 4.5% per year so after decreasing it the percentage would be 0.955

Now

Year 1 = 45,000 × 0.955 = 42,975

Year 2 = 42,975 × 0.955 =  41,041.125

Year 3 = 41,041.125 × 0.955 = 39,194.27

Year 4 = 39,194.27 × 0.955 = 37,430.53

Year 5 = 37,430.53 × 0.955 = 35,746.16

Hence, the no of years would be 5