Answers

Answer 1
Answer:
That's a handsome list of numbers you've got there.

Do you have a question to ask ?

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How to solve 30b=$41.10

Answers

When you're looking for the answer, you simply divide both sides by 30.
30b/30= b
$41.10/30= $1.37
When you've got any answers like this, you always have to try and get b alone, and you may also have to add digits, or divide, it varies from each equation.
Hope this helps :) 

divide both sides by 30 and you'll get the value for b.

Solve for y:-

10 + y = 28

Thanks!

Answers

To solve for y we have to use the INVERSE OPERATION of addition which is subtraction. Lets do it:-

10 + y = 28
y = ?
28 - 10 = y
28 - 10 = 18
y = 18

CHECK OUR WORK:-

10 + y = 28
y = 18
10 + 18 = ?
10 + 18 = 28
We were RIGHT!!!!

So, y = 18.

Hope I helped ya!! xD
Use the inverse operation to solve for x. 

10 + y = 28

10 + y = 28

y = 28 - 10

Answer:  y = 18

How do you make 135/104 a proper fraction?

Answers

Hello There! =)

(135)/(104) = 1(31)/(104)

David drove 135 miles in 3 hours. What is the unit rate?

Answers

The answer is 45 miles per hour. The unit rate (r) is the number of miles (d) divided by the number of hours (t): r = d/t. We know that d = 135 miles and t = 3 hours. So, the unit rate is r = 135 miles/3 hours. r = 135/3 miles per hour. r = 45 miles per hour. The unit rate is 45 miles per hour.Hope this helps. Let me know if you need additional help!

Answer:

45 mph

Step-by-step explanation:

If a bird flies 4 hours, it can travel 15 miles. How many minutes doe sit take that bird to fly 90 miles? (PLEASE SHOW STEPS!)

Answers

240 minutes would be 4 hours. 15 miles times 6 is 90 miles. so you take 240 and times it by 6. which equals, 1440. so it would take 1440 minutes to fly 90 miles. hope this helps!
First figure out how many times 15 can go into 90. 
90/15=6
So you now know that it takes him 6 times the amount of time. So you would multiply 4 and 6
4*6=24
It will take the bird 24 hours to travel 90 miles.
Hope this helps. 

There are approximately 7.5x10^18 grains of sand on earth.There are approximately 7x10 ^27 atoms in an average human body.Are there more grains of sand on earth or atoms in an average human body ?How do you know?

Answers

Answer:

Step-by-step explanation:

There are approximately 7.5 × 10¹⁸ grains of sand on earth.

There are approximately 7 × 10²⁷ atoms in an average human body.

A. There are more atoms in an average human body. When comparing the order of magnitude of each number 27 it greater than 18.

7 × 10²⁷ > 7.5 × 10¹⁸

B.  Now we will calculate how many times more atoms are in a human body compared to grains of sand on earth.

(7* 10^(27))/(7.5* 10^(18))

= (7)/(7.5)* (10^(27))/(10^(18))

≈ 1 × 10²⁷⁻¹⁸

≈ 1 × 10⁹

≈ 10⁹

There are approximately 1,000,000,000 atoms more in a human body compared to the grains of sand on earth.

There are more atoms in a human body because 7.5*10^18 is less than 7*10^27.