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liubo4ka [24]
3 years ago
11

Round 99.20 to the nearest ten

Mathematics
2 answers:
rewona [7]3 years ago
7 0
I believe it would be 100 because the 9 in 99 would be the rounding spot and if you look to the right of it its another 9 which is greater than five so that would round up to 100
polet [3.4K]3 years ago
6 0
When your rounding anything above five goes up, while anything below five rounds down.

When your rounding you must look at the number to the right of the number your rounding to so you could figure out the answer.

Once you decide if the number is going up or down, eliminate the number you used to determine if you should add one or leave it the same.

Step one: Analyze the numbers, the ten in 99.20 would be 90, so you would look at the digit to the right of the 99.20 which would be 9 ones.

Step two: Check to see if the number is higher than 5 or lower than 5. 9 is higher than five, so it goes up.

Step three: Bump up the second 9 in 99.20, that would make the number 100.20.

Step four: Eliminate anything after the first 9 (In this case there isn't anything)

And your done! I hope this helped, if so please mark this the brainliest answer!
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3 years ago
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What is the general equation of a cosine function with an amplitude of 3, a period of 4 pi, and a horizontal shift of negative p
yanalaym [24]

The general equation of a cosine function with an amplitude of 3, a period of 4 π, and a horizontal shift of negative π is f(x) =3cos(0.5x+\pi ).

<h3>What is a function?</h3>

A function is a rule that relates two variables.

The parent function is:

f(x)=cosx

We know the period of the parent function is 2π and the amplitude is 1.

For an amplitude of 3, we need to multiply the parent function by 3.

So, the function with amplitude 3 will be given by:

f(x) =3cosx

For a period of 4π,  we need to make the argument of the parent function half.

So, f(x) = 3cos(0.5x)

A horizontal shift of negative π means, f(x) will become f(x+π)

So, f(x) =3cos(0.5x+\pi ).

Therefore, the general equation of a cosine function with an amplitude of 3, a period of 4 π, and a horizontal shift of negative π is f(x) =3cos(0.5x+\pi ).

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6 0
2 years ago
A machine paints 34o toy boats im 3/4 of an hour how many boats can he make per hour
leonid [27]
Here, we can set up a proportion:

34 ÷ 3/4 = ? ÷ 1
34*1 = 34
34÷3/4 = the time needed to build one toyboat

34/3/4 = 45.3333333333

45.3 repeating is not a whole number, so we need to approximate. 

45 is the closest whole number, 

So.. a machine can paint 45 toy boats per hour. 

I really hope that helped! :) 

7 0
2 years ago
Can someone do my hw for me
IrinaVladis [17]

Answer:

depends on what the homework is

6 0
2 years ago
daniiel is currently 26 years older than his son. in 6 years he will be three times older than his son. how old are both of them
Molodets [167]

Answer:

Daniiel is 33 years old.

The son is 7 years old.

Step-by-step explanation:

x+26=3x

The x represents the son.

To solve for x:

-26=x-3x

-26=-2x

x=13

Since the father will be 3 times his son's age in six years we subtract 6.

x=7

This means the son is 7 years old as of right now. To find the father's age you do 7+26=33

7 0
2 years ago
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