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egoroff_w [7]
3 years ago
8

Estimate the sum of 21+17.

Mathematics
2 answers:
goldfiish [28.3K]3 years ago
8 0
40 Is The Sum Of 21+17.
sergejj [24]3 years ago
4 0
When estimating sums, you need to round to get to the answer.

So in the problem:

21+17 = ?

I round 21 to 20.

I round 17 to 20.

So know, the problem is:

20+20

The answer to 20 + 20 equals 40.

The answer is 40.

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A scale for a drawing is 5 centimeters= 1 meter. What is the scale in terms of centimeter to centimeters
umka2103 [35]

The scale in cm to cm is:

1 cm = 20 cm

Step-by-step explanation:

Scales are used to draw maps and blueprints of large objects on paper.

Given scale is:

5 centimeters = 1 meter

WE have to find the centimeter to centimeter scale. In order to do so, we have to convert the meters into centimeters

As there are 100 centimeters in a meter

So,

the scale will be:

5 cm = 100 cm

Simplifying:

The scale in cm to cm is:

1 cm = 20 cm

Keywords: Scale, factors

Learn more about scales at:

  • brainly.com/question/8806598
  • brainly.com/question/8955867

#LearnwithBrainly

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2 years ago
Which ratio expresses the scale used to create this drawing? The school has dimensions of 18 feet by 18 feet.
Papessa [141]
Answer A 1 square/2 feet=9 squares/18 feet
8 0
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Write two equivalent fraction 2/6
NeX [460]
Two fractions equivalent to 2/6 are...

1/3 and 4/12


Hope this helps!! :)
7 0
3 years ago
Please help!!!<br> 20 points
mrs_skeptik [129]

Answer:

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Step-by-step explanation:

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Determine if the following sequence is an Arithmetic Sequence. If it is, what would be the 31st term? NOTE: an=a1+(n-1)d
Ivan
<h3>Key points :-</h3>

᪥ The formula to find the 31st term is : \sf \: a_{n} =  a_{1} + (n - 1) \times d

᪥ In the formula, \sf \: a_{1} represents the first term of the sequence.

᪥ \sf\:n is the number of terms, In our case n is 31.

᪥ \sf\:d is the common difference between the terms, In our case d is 4.

\green{ \rule{300pt}{3pt}}

<em>Detailed Solution is attached</em>᭄

3 0
1 year ago
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