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1 year ago

On a scale drawing, 9 inches represents 11 miles. How many inches represent 55 miles?

Mathematics

1 answer:

Elodia [21]1 year ago

6 0

Answer: you will get 45

Step-by-step explanation:

If you do 9x5=45 and 11x5=55

So the answer would be 45

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Calculate the value of (6.72 10^5)+ (3.2 x 10^4) Give your answer in standard form.

dangina [55]

Answer:

$7.04\cdot 10^{5}$ or 704,000

Step-by-step explanation:

Standard Form of Numbers

Any number that we can write as a decimal number between 1.0 and 10.0, multiplied by a power of 10, is said to be in Scientific Notation. Some authors consider standard form and scientific form as the same, but others state that standard form is the common form of expressing numbers, i.e., a sequence of digits, separated by thousands by a comma, and separated from the decimal part by a dot.

We'll give here both answers.

We have to calculate:

$6.72\cdot 10^{5}+3.2\cdot 10^{4}$

Since the numbers don't have the same exponent, we must make them equal. Let's make the second number have an exponent of 5, by dividing by 10:

$6.72\cdot 10^{5}+3.2\cdot 10^{4}=6.72\cdot 10^{5}+3.2/10\cdot 10^{5}$

$6.72\cdot 10^{5}+3.2\cdot 10^{4}=6.72\cdot 10^{5}+0.32\cdot 10^{5}$

Now we add:

$6.72\cdot 10^{5}+3.2\cdot 10^{4}=7.04\cdot 10^{5}$

It's correctly expressed in scientific notation. Now to convert to 'standard form', multiply by $10^5=100,000$ :

$6.72\cdot 10^{5}+3.2\cdot 10^{4}=7.04*100,000=704,000$

7 0

2 years ago

A train leaves the train station and travels at a speed of 45 miles per hour on the way to drop off cargo at a warehouse. When t

ruslelena [56]

Lo siento :( perdonameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee soy Principiante

6 0

3 years ago

Read 2 more answers

Nick was surveying his field and saw some cows and ducks. Nick counted a total of 80 heads and

Semenov [28]

Answer:

y= 43

x= 37

Step-by-step explanation:

Legs: (43 x 4) + (37 x 2) = 248

Heads: 43 + 37 = 80

4 0

1 year ago

Find the value of x in the diagram below.

bulgar [2K]

Answer:

Step-by-step explanation:

13x + 5x = 180

18x = 180

x = 10

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2 years ago

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What is the rat unit of 1700 and 40

notka56 [123]

Question: What is the rat unit of 1700 and 40=> Since you have not given me the unit of meaure to use in the said unit rate. I will no longer tackle something about it. I will only show you how it works.=> Let say 1 700 is the number we need to divide by 40.=> 40 is our divisor then=> 1 700 / 40 = 42.5 let say 1 700 is the amount you receive in 4o days Thus in everyday you receive 42.5 / day

3 0

2 years ago