# 300 reduced by twice my age is 192

QUESTION POSTED AT 15/01/2020 - 03:11 AM

QUESTION POSTED AT 15/01/2020 - 03:11 AM

I think its done like this:

300 minus 192 is 108

108 is twice your age

108 divided by 2 is 54

Answer is: 54 years old

300 minus 192 is 108

108 is twice your age

108 divided by 2 is 54

Answer is: 54 years old

8100/6 = 5400/x

cross multiply

8100x = 32400

x = 32400/8100

x = 4......4 years old

cross multiply

8100x = 32400

x = 32400/8100

x = 4......4 years old

ANSWERED AT 29/01/2020 - 05:38 PM

QUESTION POSTED AT 29/01/2020 - 05:38 PM

A. variable is an unknown number substituted in by a letter, such as h or s

coefficient is the number multiplied by the variable.....7n....coefficient is 7

constant is just a number with no variables attached.

7.50h + 0.20s + 40.....coefficient is 7.50 or 0.20....variable is h or s....constant is 40

B. 7.50h + 0.20s + 40 = her pay for the week

she works 25 hrs....so sub in 25 for h....she sells 300....so sub in 300 for s. ---- 7.50(25) + 0.20(300) + 40 = 287.50 <== her weekly pay

C. if she made 9 per hr instead of 7.50, the coefficient would change.

It would be 9.00h + 0.20s + 40

coefficient is the number multiplied by the variable.....7n....coefficient is 7

constant is just a number with no variables attached.

7.50h + 0.20s + 40.....coefficient is 7.50 or 0.20....variable is h or s....constant is 40

B. 7.50h + 0.20s + 40 = her pay for the week

she works 25 hrs....so sub in 25 for h....she sells 300....so sub in 300 for s. ---- 7.50(25) + 0.20(300) + 40 = 287.50 <== her weekly pay

C. if she made 9 per hr instead of 7.50, the coefficient would change.

It would be 9.00h + 0.20s + 40

ANSWERED AT 29/01/2020 - 05:24 PM

QUESTION POSTED AT 29/01/2020 - 05:24 PM

1: 1,000,000

Then you mark points 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 on the y-axis.

The origin is 0

1 is equivalent to 1,000,000

2 is 2,000,000

3 is 3,000,000 ...

and so on, until 10 which is 10,000,000

Then you mark points 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 on the y-axis.

The origin is 0

1 is equivalent to 1,000,000

2 is 2,000,000

3 is 3,000,000 ...

and so on, until 10 which is 10,000,000

ANSWERED AT 29/01/2020 - 05:21 PM

QUESTION POSTED AT 29/01/2020 - 05:21 PM

The * correct answer* is:

P(x) = 13x² – 10x + 350; 1,102 fish

**Explanation**:

I plotted this data in a graphing calculator. The screenshot is attached. You can see the curve of the parabola in the graph. I then ran the quadratic regression; again, the screenshot is attached. It lists the values of a, b and c for the equation y = ax²+bx+c.

ANSWERED AT 29/01/2020 - 04:37 PM

QUESTION POSTED AT 29/01/2020 - 04:37 PM

A ) The rate at which rumor spreads speed up over time. If t increases, also N(t) increases, because 300 is divided by the smaller number.( Correct )B ) 1 = 300 / ( 1 + 299 · e^(-0.36 · 0 ) ) 1 = 300 / ( 1 + 299 · 1 ) 1 = 300 / 3001 = 1 ( Correct )C ) 100 = 300 / ( 1 + 299 · e^(-0.36 · 14 ) )100 = 300 / ( 1 + 299 · 1/154.47 )100 = 300 / 2.93565100 ≈ 102.192 ( Correct ) - approx. 14 minutes

D ) N = 300 / ( 1 + 299 · e^(-∞) )N = 300 / ( 1 + 299 · 0 ) N = 300 / 1 = 300299 people are enclosed space ( Not correct )Answer:True statements are:**A )** , **B ) and C ) .**

D ) N = 300 / ( 1 + 299 · e^(-∞) )N = 300 / ( 1 + 299 · 0 ) N = 300 / 1 = 300299 people are enclosed space ( Not correct )Answer:True statements are:

ANSWERED AT 29/01/2020 - 04:36 PM

QUESTION POSTED AT 29/01/2020 - 04:36 PM

To answer the question, I assume that the investment has a simple interest. The interest is calculated by the equation,

i = P x r x t

Substitute the given values,

i = ($300) x 0.07 x 2

The value of i is $42. Thus, the answer is letter B. $42.00.

i = P x r x t

Substitute the given values,

i = ($300) x 0.07 x 2

The value of i is $42. Thus, the answer is letter B. $42.00.

ANSWERED AT 29/01/2020 - 04:36 PM

QUESTION POSTED AT 29/01/2020 - 04:36 PM

The volume (V) of the cone is one-third of the product of its height (h) and area (A).

V = A x h = πr²h

Now, if the radius is quadrupled and the height is reduced to 1/5, the equation will be,

V2 = π(4r)²(1/5 h) = π(3.2)r²h

Thus, the second volume would be 3.2 time the first volume.

V = A x h = πr²h

Now, if the radius is quadrupled and the height is reduced to 1/5, the equation will be,

V2 = π(4r)²(1/5 h) = π(3.2)r²h

Thus, the second volume would be 3.2 time the first volume.

ANSWERED AT 29/01/2020 - 04:29 PM

QUESTION POSTED AT 29/01/2020 - 04:29 PM

You are 9 years old and your sister is 13.

ANSWERED AT 29/01/2020 - 04:27 PM

QUESTION POSTED AT 29/01/2020 - 04:27 PM

The normal conditions of helium is 300 k and 1 atm. The conditions that deviate from the ideal behavior do not follow the ideal gas law equation PV = nRT. Among these conditions, the one that did not abide to the ideal gas equation is b. 300 K and 2 atm with the deviation on the pressure.

ANSWERED AT 29/01/2020 - 04:23 PM

QUESTION POSTED AT 29/01/2020 - 04:23 PM

Let x be the number of bracelets that Zoya needs to sell. The product of x and the price of each should be at least 300.

5x ≥ 300 ; x ≥ 60

The least number of bracelets should be 60. Since, there are 100 available bracelets, the final inequality is,

60 ≤ x ≤ 100

5x ≥ 300 ; x ≥ 60

The least number of bracelets should be 60. Since, there are 100 available bracelets, the final inequality is,

60 ≤ x ≤ 100

ANSWERED AT 29/01/2020 - 03:55 PM

QUESTION POSTED AT 29/01/2020 - 03:55 PM

**Answer:**

Options B, C and D.

**Step-by-step explanation:**

Considering the late middle ages to be the 14th and 15th centuries, the choices are as follows:

B - Famine and plague devastated Europe's population. The time was termed as black death period that killed nearly 25 million people in Europe.

C - Mongol rule weakened across their vast empire.

D - England and France fought a series of related conflicts which became known as the Hundred Years' War. This war lasted for 116 years.

ANSWERED AT 29/01/2020 - 03:50 PM

QUESTION POSTED AT 29/01/2020 - 03:50 PM

The given says the height distribution is normally distributed with the mean height equal to 68 inches. In this case, the bell-shaped curve has a vertical symmetry at 68 inches. This means, half of the mean exceeds 68 inches while the other half has height below 68 inches.

ANSWERED AT 29/01/2020 - 03:47 PM

QUESTION POSTED AT 29/01/2020 - 03:47 PM

You add 100km from the 10km which acts as a starting point;

10, 110, 210, 310, 410,

10, 110, 210, 310, 410,

ANSWERED AT 29/01/2020 - 03:42 PM

QUESTION POSTED AT 29/01/2020 - 03:42 PM

The distance traveled by the balloon in every minute makes an arithmetic sequence with a first term equal to 40 ft and common difference equal to 20. The nth term of an arithmetic sequence is calculated by,

an = a1 + (n - 1) x d

Substituting,

an = 40 + (15 - 1) x 20 = 320

Thus, the answer is letter B. 320 feet.

an = a1 + (n - 1) x d

Substituting,

an = 40 + (15 - 1) x 20 = 320

Thus, the answer is letter B. 320 feet.

ANSWERED AT 29/01/2020 - 03:39 PM

QUESTION POSTED AT 29/01/2020 - 03:39 PM

Human factors contributed to climate change through the usage of CFC's common in sprays, aerosols, refrigerant in air conditioners and other manufacturing industries that thins out the ozone layer thereby lessenign the protection from the sun rays. CO2 charged form The non-human factors are volcanic eruptions, solar output and heat generating natural processes. ways to reduce human impact are (1) reduce the use of sprays, aerosols esp. with CFCs; (2) become energy efficient and (3) reducing your wastes.

ANSWERED AT 29/01/2020 - 03:00 PM

QUESTION POSTED AT 29/01/2020 - 03:00 PM

Boy = 17 years.

Sister = 2*17 = 34 years.

When the boy is 23, that is 17 + 6 = 23, in 6 years time.

The sister will be: 34 + 6 = 40 years old.

Sister = 2*17 = 34 years.

When the boy is 23, that is 17 + 6 = 23, in 6 years time.

The sister will be: 34 + 6 = 40 years old.

ANSWERED AT 29/01/2020 - 02:58 PM

QUESTION POSTED AT 29/01/2020 - 02:58 PM

D = 3n

n = d - 10.....d = n + 10

n = d - 10.....d = n + 10

ANSWERED AT 29/01/2020 - 02:47 PM

QUESTION POSTED AT 29/01/2020 - 02:47 PM

Ed is 12 and Ted is 6. I believe that's the answer.

ANSWERED AT 29/01/2020 - 02:22 PM

QUESTION POSTED AT 29/01/2020 - 02:22 PM

**Answer: Present age of Beth is 24 years.**

**And Present age of Sally becomes 36 years.**

**Step-by-step explanation:**

Let the present age of Beth be 'x'.

Six years ago,

Age of Beth becomes (x-6) years

Age of Sally becomes

Sum of Sally and Beth's age = 60

According to question, it becomes

**So, Present age of Beth is 24 years.**

**And Present age of Sally becomes 60-24=36 years.**

ANSWERED AT 29/01/2020 - 02:22 PM

QUESTION POSTED AT 29/01/2020 - 02:22 PM

Let

**Step **

**Find **

Divide by numerator and denominator

**Step **

**Find **

Divide by numerator and denominator

**Step **

**Find **

Divide by numerator and denominator

In this problem

The geometric sequence formula is equal to

For

therefore

**the answer is**

**the common ratio for the geometric sequence above is **

ANSWERED AT 29/01/2020 - 01:54 PM

QUESTION POSTED AT 29/01/2020 - 01:54 PM

Pat must be 14. for if he is fifteen, double his age plus 5 years would be 35. but their ages must be lower, so pat must be 14.

ANSWERED AT 29/01/2020 - 01:35 PM

QUESTION POSTED AT 29/01/2020 - 01:35 PM

ANSWERED AT 29/01/2020 - 12:36 PM

QUESTION POSTED AT 29/01/2020 - 12:36 PM

**Answer:**

**d. **60 mph.

**Step-by-step explanation:**

Let x be the number of hours and y be the distance covered in miles.

We have been given that a car traveling on a highway is 60 miles away from home after 1 hour, and is 300 miles away from home after 5 hours.

Since distance covered by car depends on number of hours, so distance will be dependent variable, y.

Now we will use average rate of change formula to solve our given problem.

Substituting our given values in above formula we will get,

**Therefore, average rate of the car’s distance over time is 60 miles per hour and option 'd' is the correct choice.**

ANSWERED AT 29/01/2020 - 11:17 AM

QUESTION POSTED AT 29/01/2020 - 11:17 AM

**Answer:**

X>216.5 pounds

**Step-by-step explanation:**

Let X represent the weight of male Americans between the ages of 18 and 25.

X is normally distributed, with a mean of 164.5 lb and a standard deviation of 26 lb.

A person is obese if the z-score of his or her weight is greater than 2

Let us find out corresponding X score for z=2

Thus a person can be considered as obese if his weight exceeds 216.5 pounds.

ANSWERED AT 29/01/2020 - 11:16 AM

QUESTION POSTED AT 29/01/2020 - 11:16 AM

First, convert the weight of the child from pounds to kilograms using the conversion factor given. The operation gives an answer of 19.3431 kg. With this weight and the given average dosage, the child should be prescribed with 174.0879 mg oxcarbazepine. From the concentration given, the final answer is 2.90 mL.

ANSWERED AT 29/01/2020 - 11:14 AM

QUESTION POSTED AT 29/01/2020 - 11:14 AM

If there are 40 children aged twelve and under and x of them are under three years old, 40 - x aged three twelve years old. From the 92 people that where taken by the company on whale watching trips, 52 are over twelve years old. The equation that best show the total cost, C is

(40 - x)(36) + (52)(48) = C

Rearranging the equation gives,

x = 40 - ((C - 2496)/ 36)

(40 - x)(36) + (52)(48) = C

Rearranging the equation gives,

x = 40 - ((C - 2496)/ 36)

ANSWERED AT 29/01/2020 - 11:03 AM

QUESTION POSTED AT 29/01/2020 - 11:03 AM

You are given two points,

(5, 60) and (10, 40)

in order to get the equation, let's use the form slope-intercept form

m = (y1 - y2) / (x1 - x2)

m = (60 - 40) / (5 - 10)

m = 20/-5

m = -4

Get the x intercept

y = mx + b

60 = (-4)(5) + b

b = 60+20

b = 80

so the equation is

y = -4x + 80

f(x) = -4x + 80

ANSWERED AT 29/01/2020 - 11:02 AM

QUESTION POSTED AT 29/01/2020 - 11:02 AM

The formula for the volume of a box (assuming that it is in the shape of a **cube**) is __V=B^3__.

12=B^3

Now, do the cube root of 12 to find each dimension, all dimensions will be equal as it is a cube.

B= about 2.29 (when doing on a calculator keep full answer and do not round)

Now to find the volume of box B, multiply each dimension by 5

5(2.29...) times 5(2.29...) times 5(2.29...)

=1,500 m^3

Hope this helps!

ANSWERED AT 29/01/2020 - 10:48 AM

QUESTION POSTED AT 29/01/2020 - 10:48 AM

Y = 0.50x + 30

trees planted : (x) 100 150 200 250 300

amount earned :(y) 80 105 130 155 180

trees planted : (x) 100 150 200 250 300

amount earned :(y) 80 105 130 155 180

ANSWERED AT 29/01/2020 - 10:43 AM

QUESTION POSTED AT 29/01/2020 - 10:43 AM

Frosting : 2(20 3/8 + 10 2/5) = 2(163/8 + 52/5) = 2(815/40 + 416/40) = 2(1231/40) = 2462/40 = 61 22/40 = 61 11/20

sprinkles : 2(6 3/4 + 3 3/16) = 2(27/4 + 51/16) = 2(108/16 + 51/16) = 2(159/16) = 318/16 = 19 14/16 = 19 7/8

answer choice C

sprinkles : 2(6 3/4 + 3 3/16) = 2(27/4 + 51/16) = 2(108/16 + 51/16) = 2(159/16) = 318/16 = 19 14/16 = 19 7/8

answer choice C

ANSWERED AT 29/01/2020 - 10:38 AM

QUESTION POSTED AT 29/01/2020 - 10:38 AM