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Harlamova29_29 [7]
3 years ago
14

Explain how to estimate 586 - 321 two different ways

Mathematics
2 answers:
k0ka [10]3 years ago
6 0
My guess this is answer I hope it is right

DaniilM [7]3 years ago
4 0
One way is to round to the nearest ten first then subtract. 1
Another way is to round to the nearest hundred then subtract. 2
And one more way is to subtract then round to the nearest ten. 3
The last way is to subtract then round to the nearest hundred. 4

Example of #1 - 590-320 = 270
Example of #2 - 600-300 = 300
Example of #3 - 586-321 = 265 = 270
Example of #4 - 586-321 = 265 = 300

All of these should work it just depends on what your teacher wants. Choose any of the examples.

HOPE THIS HELPED :)
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There is a walking trail at the park. Four laps around the trail is a distance of 1 mile. How many laps does it take to walk 3/4
ira [324]

Pretty Sure it is 3 laps. because if it is 4 laps = 1 mile. then 1/4 = 1 lap 2/4= 2 laps 3/4 = 3 laps and then 4/4 = 4 laps = 1 mile.


Hope this helps :)

 

4 0
3 years ago
Read 2 more answers
Please show your work and explain it.
Maru [420]

Answer:

f(x)=\dfrac{x+2}{2(x-2)}

Step-by-step explanation:

Remember when you divide fractions, you need to get the reciprocal of the divisor and multiply. So your first simplification would be:

\dfrac{x^2+4x+4}{x^2-6x+8}\div\dfrac{6x+12}{3x-12}\\\\=\dfrac{x^2+4x+4}{x^2-6x+8}\times\dfrac{3x-12}{6x+12}\\\\=\dfrac{(x^2+4x+4)(3x-12)}{(x^2-6x+8)(6x+12)}

Next we factor what we can so we can further simplify the rest of the equation:

=\dfrac{(x^2+4x+4)(3x-12)}{(x^2-6x+8)(6x+12)}\\\\=\dfrac{(x+2)(x+2)(3x-12)}{(x^2-6x+8)(6(x+2))}\\\\

We can now cancel out (x+2)

=\dfrac{(x+2)(3x-12)}{(x^2-6x+8)(6)}

Next we factor out even more:

=\dfrac{(x+2)(3)(x-4)}{(x-2)(x-4)(6)}

We cancel out x-4 and reduce the 3 and 6 into simpler terms:

=\dfrac{(x+2)(1)}{(x-2)(2)}

And we can now simplify it to:

=\dfrac{x+2}{2(x-2)}

6 0
3 years ago
working together Alberto and Amanda can paint a fence in 4.12 hours. had she done it alone it would have taken Amanda 10 hours.
strojnjashka [21]

Answer:

  D)  7.01

Step-by-step explanation:

The rates of doing work, in terms of jobs per hour, will add when the two painters are working together. If A represents Alberto's time to do the job alone, we have ...

  1/4.12 = 1/10 + 1/A

(Jobs per hour is the inverse of hours per job.)

  A = 1/(1/4.12 -1/10) ≈ 7.0068 ≈ 7.01

It takes Alberto 7.01 hours to do the job alone.

6 0
3 years ago
What effect would a latitude of 60° have on the climate?
ohaa [14]

Answer:

1st one:

Temperatures Cool With Increasing Latitude

As latitude increases, the sun shines more obliquely and provides less warming energy.

Step-by-step explanation:

5 0
3 years ago
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Help please ASAP!!!! I NEED CORRECT ANSWERS ONLY FOR BRAINLIEST
Yuliya22 [10]
C. it's simple dude. you just plug in each matrix value into the given function and solve. the matrix in C matches the given formula.
7 0
3 years ago
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