Aruby throated hummingbird beat its wings about 53 times each second about how many times does a ruby throated hummingbird beat its wings in 5 seconds

265 - Normal

 (Will tell how to use the answers in the end)

270 - Estimated

Step-by-step explanation:

'About' (Estimation):

"Beats its wings 'ABOUT' 53 times each second"

First, we are starting with the estimations, 53 rounded to the nearest ten is 50.

" 'ABOUT' how many times does a ruby-throated hummingbird beats its wings in 5 seconds"

The nearest ten is 10.

(QR *Quick Reminder*: If the estimation is like '5' then it goes to the next/the greater number.

Example:

10 5 15

                     >

Addition:

Now that we have found the estimated amount of the seconds, we will add them together.

    50

+     5

    55

55 = Estimated is 60.

Let's multiply the normal numbers now!

    53

+     5

    58

58 = Estimated is 60.

Great! Now we got 55 and 53 (Can be 60 *55's and 58's estimate* if supposed to estimate)

Multiplication:

Now, we multiply!

Estimated Multiply:

  50

x  10

500

Normal Multiply:

        53

     x   5

     265

Estimated Normal Multiply:

 265

               So these can be your answer!

 270

How to use the answers: (answers are above)

265 - Normal:

Only use it when the directions don't say anything but to solve the problem.

270 - Estimate:

Only use it when the directions tell you to estimate.

265 and 270 - Both:

Only use it when the directions tell you to solve the problem and estimate.

(Quick Hint: In some of the question passages, they replace estimate with some other words that also talk about rounding.)

Hope this helped and have a great day!

step-by-step explanation:

if you was gonna solve for a, a is a   < -12