-- 100% of the original number is ALL of it.
-- If it's increased by that amount, it becomes DOUBLE
(twice as much as) what it was originally.
Answer:
1) -9
2) 10
3) -2
4) 9
Step-by-step explanation:
Simple mathematics
Note: -(- is a plus symbol, it also makes a + symbol as well...
115 is the answer for the first problem.5031 is the answer for the second question.
![\bold{\huge{\underline{ Solution }}}](https://tex.z-dn.net/?f=%5Cbold%7B%5Chuge%7B%5Cunderline%7B%20Solution%20%7D%7D%7D)
<h3><u>Given </u><u>:</u><u>-</u></h3>
- We have given one rectangle whose 3 by 4th part is shaded and remaining part is non shaded.
<h3>
<u>To </u><u>Find </u><u>:</u><u>-</u><u> </u></h3>
- We have to find the area of shaded region of the given figure .
<h3>
<u>Let's </u><u>Begin </u><u>:</u><u>-</u><u> </u></h3>
<u>Here</u><u>, </u><u>We </u><u>have </u>
- The dimensions of large rectangle as 12 units and 8 units
- <u>That </u><u>is</u><u>, </u>
![\sf{ Length = 9 + 3 = 12 \: units}](https://tex.z-dn.net/?f=%5Csf%7B%20Length%20%3D%209%20%2B%203%20%3D%2012%20%5C%3A%20units%7D)
![\sf{ Breath = 4 + 4 = 8 \: units}](https://tex.z-dn.net/?f=%5Csf%7B%20Breath%20%3D%204%20%2B%204%20%20%3D%208%20%5C%3A%20units%7D)
- The dimensions of non shaded rectangles are 9 units and 4 units
<u>We </u><u>know </u><u>that</u><u>, </u>
Area of rectangle
![\bold{\red{ = Length {\times} Breath }}](https://tex.z-dn.net/?f=%5Cbold%7B%5Cred%7B%20%3D%20Length%20%7B%5Ctimes%7D%20Breath%20%7D%7D)
<u>Subsitute </u><u>the </u><u>required </u><u>values</u><u>, </u>
Area of large rectangle
![\sf{ = 12 {\times} 8 }](https://tex.z-dn.net/?f=%5Csf%7B%20%3D%2012%20%20%7B%5Ctimes%7D%208%20%7D)
![\sf{ = 96 \:units^{2}}](https://tex.z-dn.net/?f=%5Csf%7B%20%3D%2096%20%5C%3Aunits%5E%7B2%7D%7D)
Thus, The area of large rectangle is 96 units² .
<h3>
<u>Now</u><u>, </u></h3>
Area of non - shaded rectangle
![\sf{ = 9 {\times} 4 }](https://tex.z-dn.net/?f=%5Csf%7B%20%3D%209%20%7B%5Ctimes%7D%204%20%7D)
![\sf{ = 36\: units^{2}}](https://tex.z-dn.net/?f=%5Csf%7B%20%3D%2036%5C%3A%20units%5E%7B2%7D%7D)
Thus, The area of non shaded rectangle is 36 units² .
<h3>
<u>Therefore</u><u>, </u></h3>
Area of shaded region
= Area of large rectangle - Area of non shaded rectangle
<u>Subsitute </u><u>the </u><u>required </u><u>values</u><u>, </u>
![\sf{ = 96 - 36}](https://tex.z-dn.net/?f=%5Csf%7B%20%3D%2096%20-%20%2036%7D)
![\sf{ = 60\: units^{2}}](https://tex.z-dn.net/?f=%5Csf%7B%20%3D%2060%5C%3A%20units%5E%7B2%7D%7D)
Hence, The total area of shaded region is 60 sq.units.
Answer:
In simplest form it's 6/11.
Step-by-step explanation: Please brainliest?