Why is is important to convert rates to the same units before comparing them?

Answers

Answer 1
Answer: You have to convert rates to the same units before you compare them otherwise you are not comparing like with like. For example, if you compare 3kg with 3000g you may think the second is bigger, but when converted to the same rates they are actually identical.

Related Questions

Q:What is the indicated term of the arithmetic sequence? someone help!!!! a14 for 200,196,192... A: a. 148 b. 252 c. 144 d. 239
Which of the following represents the zeros of f(x) = 3x^3 − 10x^2 − 81x + 28?A) 7, -4, 1/3 B) 7, -4, -1/3 C) 7, 4, 1/3 D) 7, 4, -1/3
A plant can either have a smooth seed (p) or a rough seed (q). Rough seeds are recessive and smooth seeds are dominant. In a population of 100 plants, 32 of them have rough seeds.p^2 + 2pq + q^2 = 1 a) What is q^2? b) What is q? c) What is p? d) If there are 19 plants with rough seeds in a population of 100, what is the allele frequency for smooth seeds?
A line passes through (1,1) , (-2,4) , and (6,n) . Find the value of n.
What is the tenth term of the geometric sequence 3, 6, 12, 24, 48, … ?

Gracie Shay wants to buy a new Hummer in five years. Gracie estimates the cost of the Hummer will be $28,000. If she invests $12,000 now at a rate of 6% compounded semiannually, she:

Answers

Answer:

Option 4 is correct

Step-by-step explanation:

The complete question is as follows:

Gracie Shay wants to buy a new Hummer in 5 years. Gracie estimates the cost of the Hummer will be $28,000. If she invests $12,000 now, at a rate of 6 percent compounded semiannually, she:

1.Will have enough money

2.Will have exactly $16,000

3.Will have $18,000

4.Will have $16,126.80

5.None of these

Solution:-

- The plan is to buy a new Hummer that costs C = $28,000 in t = 5 years.

- She invests P = $12,000 now at an interest rate i = 6% compounded semi-annually.

- We will calculate the amount of money, (compound interest formula), that Gracie has at the end of 5 years:

                    A = P*( 1 + i )^n

- Where, A : Amount after n periods.

               n : Compounding period in years.

- The compounding period (n) is denoted as the number of time the interest in compounded over the time period t. Since the interest is compounded semi-annually then the compounding period would be:

               n = t* ( 2 periods / year )

               n = 5*2 = 10 periods.

- Now use the above "compounded interest" formula for i to be distributed for the whole year i.e half of 6%:

               A = (12,000)*( 1 + 6/200)^10

               A = 12,000*(1.03)^10

               A = $16126.99

Here is the solution of the given problem above.
Given that the estimated cost of the Hummer is $28,000, and that she invests $12,000 with a 6% rate compounded semiannually. Semiannually, that would be twice a year, so it is the rate every 6 months. Let's get the 6% of $12,000 and it would be $720. Therefore, she will pay a total of $13,440 in a year. Hope this answer helps.

All paper money in the United States is the same size no matter what the value is. Paper money has an area of about 15.86 square inches and a length of about 6.1 inches. What is the width of paper money?inches

Answers

Your answer is about 2.6 inches. I hope I did this right because I want to help

For what values of x is the expression below defined?o A. 3 x s 1O B. -3 x 1O C. 3 x S-1

Answers

remember
you when you put a negative inside the square root signs, it is complex and undifined

find which values you can use

x+3
what values make it 0? (the boundary between negative and possivie)
x+3=0
x=-3
has to be more than or equal to 0 (because √0=0)
x>-3

2nd one
1-x=0
1-x>0
add x both sides
1>x

so
x>-3 and 1>x
1>x and x>-3
1>x>-3
-3<x<1


B is answer

I NEED HELP PLEASE!Juanita and Lauren are painting a
circular mural on one wall of the
community center. The area of the
mural is 66 square meters.

what is the radius?
remember,a=pie r^2,use pie=22/7

Answers

Answer:

4.583 meters

Step-by-step explanation:

Divide 66 by pi

=21.01910828

I rounded to 21

Find the square root of 21

4.58257569...

I rounded again, to 3 decimal places

4.583

Hope it helps!

Answer:

√21  akasquare root of 21

Step-by-step explanation:

The person above pretty much explained it lol

What is the mixed number of 4/3

Answers

To find the mixed number:-

4/3 is an improper fraction.

How many times can 4 go into 3?

once, so the whole number is 1.

4-3 = 1

1 remainder, so 1 is the numerator.

1  1/3

Final answer:  1  1/3
4/3= 1 1/3

The final answer is 1 1/3~

What is the simplified form of the expression? (b/7)^2

Answers

Answer:

The simplified form is \cfrac{b^2}{49}.

Step-by-step explanation:

The goal of the exercise is to apply exponent properties. On this case we need to distribute the exponent to each expression of the fraction, that is to the numerator and to the denominator, using the distribution exponent property.

\[\left( \cfrac{a}{b}\right)^n= \cfrac{a^n}{b^n}\]

In a general way we can always distribute exponents over multiplication or division.

Simplifying using exponent distribution property.

Applying the property to the exercise give us

\left(\cfrac{b}{7}\right)^2 =\cfrac{b^2}{7^2}

Lastly we know that 7^2 =49 so we get

\left(\cfrac{b}{7}\right)^2 =\cfrac{b^2}{49}

And that is the simplified form of the given expression.

(b/7)^2=(b/7)(b/7)=(b^2)/(49)