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myrzilka [38]
3 years ago
9

What is rounding for math

Mathematics
2 answers:
Sedaia [141]3 years ago
5 0

Answer:

Step-by-step explanation:

Rounding means making a number simpler but keeping its value close to what it was. The result is less accurate, but easier to use. Example: 73 rounded to the nearest ten is 70, because 73 is closer to 70 than to 80. But 76 goes up to 80. There are many ways to round.

Elden [556K]3 years ago
4 0

Hey there!

Rounding is estimating a number to its closest value. Let's say for example the number 226. If you round 226 to the nearest ten, you would get 230. This is what rounding is.

Hope this helps!

\text{-TestedHyperr}

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toni can carry up to 20lbs in her backpack. her lunch weighs 0.75lbs, her gym clothes weigh 2.3lbs,and her books b weigh 3.4lbs
Oxana [17]

let her lunch = l, her gym clothes = g, her books = x

20 pounds is the amount she can carry

her lunch (1) weighs 0.75 lbs

her clothes (1) weighs 2.3 lbs

her books (x) = 3.4 lbs

Set the inequality

3.4x + 2.3 + 0.75 ≤ 20

Simplify

3.4x + 3.05 ≤ 20

3.4x + 3.05 (-3.05)  ≤ 20 (-3.05)

3.4x ≤ 16.95

3.4x/3.4 ≤ 16.95/3.4

x ≤ 4.99 (rounded)

x ≤ 4.99 can be one of your inequalities.

her books can weigh up to 4.99 pounds before her backpack breaks

hope this helps

8 0
3 years ago
. Find the perimeter of a regular pentagon with each side measuring 4.5 inches.
soldi70 [24.7K]

Answer: 22.5 inches

Step-by-step explanation:

  • the general formula for finding perimeter is p=s+s+s...
  • a pentagon contains 5 sides

p=s+s+s+s+s

  • note that this is a regular pentagon so it must contain 5 congruent sides
  • each side will be 4.5 inches
  • the formula can be changed to 5(s) and solved:

5(4.5 in)=p

∴ 22.5 inches = perimeter of the pentagon

5 0
2 years ago
Which is larger, 2/3 x 6 or 4/5 x 7?
Aneli [31]
2/3 × 6 is 6/3, which would simplify to 2. 4/5 × 7 is 28/5, which would simplify to 5 3/5. so 4/5×7 is larger
6 0
3 years ago
Please helpp me!!<br> (zoom in to see more clear)<br> please explain your reasoning!!!
Citrus2011 [14]

Answer:

Neither because reason is incorrect answer of Vicente is wrong and reason of Zwena is wrong.Though her answer is correct her reason is incorrect.

Step-by-step explanation:

expression 9x-2x+4x is done as

9x-2x+4x

9x+4x-2x

13x-2x

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5 0
3 years ago
Read 2 more answers
Which phrase best describes the correlation between the variables?
d1i1m1o1n [39]
I would go with C which Is strong Negative 
I picked C because its going down in a straight line 
5 0
3 years ago
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