MATHEMATICS MIDDLE SCHOOL

Find the sum of 136 + 212. Explain why you did or did not regroup.

Answers

Answer 1
Answer:

the sum is 348.

What is addition?

Addition is a way of combining things and counting them together as one large group. ... Addition in math is a process of combining two or more numbers.

Here, we have,

now, we get,

 136

+212

=348

I didn't regroup because 6+2, 3+1, and 1+2 don't have answers that contain two digits. Two digit number answers need to be regrouped.

Hence, the sum is 348.

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Answer 2
Answer:   136
+212
=348
I didn't regroup because 6+2, 3+1, and 1+2 don't have answers that contain two digits. Two digit number answers need to be regrouped.

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What is 33 in expanded form

Answers

33 expanded form = 30+3
30+3 is 33 in expanded form I am writing more cuz I need 20 characters

In 45 years, Gabriela will be 4 times as old as she is right now.
How old is she right now?

Answers

Gabriela is 15, because 15 plus 45 is 60, and 15 times four also equals 60 :) hope this helped!

She is 15 years old right now

In 25 minutes Li can run 10 laps around the track find the constant of proportionality

Answers

10/25 = 2/5

Divide by 5 to get simplest form

What is the supplement of a 76 degree angle?

Answers

The supplement is 104 degrees. Hope this helps ☻
the angle is 38 degrees.

What is the volume of the rectangular prism?183 in³

234 in³

540 in³

784 in³
rectangular prism with length labeled 18 in., width labeled 10 in. and height labeled 3 in.

Answers

The requried volume of the given rectangular prism is given as 540 in³. Option C is correct.

What is volume?

Volume is defined as the mass of the object per unit density while for geometry it is calculated as profilearea multiplied by the length at which that profile is extruded.

Here,
The volume of a rectangular prism is given as,
= length * width * height
= 18 * 10* 3
= 540 in³

Thus, the requried volume of the given rectangular prism is given as 540 in³. Option C is correct.

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formula is l x w x h
18x10x3=540
540in^3

Becky wants to fence in a rectangular play area for her dog. If she was 82 feet of fencing and wants the length of the play area to be 9 feet longer than its width then what should the dimensions of the play area be?

Answers

ok
fencing=perimiter
perimiter=L+L+W+W=2L+2W=2(L+W)
82=2(L+W)
divid eboth sides by 2 for ease of use
41=L+W


if she wants legnth to be 9 more than width, then
L=9+W
subsitute 9+W for L
41=9+W+W
41=9+2W
subtract 9
32=2W
divide 2
16=W

subsitute
L=9+W
L=9+16
L=25



the pen should be 25 feet by 16 feet
length= width+9    ----- Now we can substitute length with width!
Perimeter = 2(length) + 2(width)
Perimeter = 82
82= 2(w+9) + 2w
41 = w+ 9 + w
41-9 = 2w
32 = 2w
16= w    (now plug w into the equation for length)
length = 16 + 9 = 25

SOO... Dimensions = 16 x 25
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