Answer:
100
Step-by-step explanation:
In this problem 10 represents 9% of a number. So, to find 90% you must multiply 10 by 10. You do this because 9% times 10 equals 90%; therefore, 100 must be 90%.
This can also be proven through cross multiplication. To set up a proportion put the percent over the number like,
. Then cross multiply to get the equation,
. Finally, divide both sides to get x=100.
Jenny is 3 less than half of a, or 1/2a - 3. Fraz is twice a + 7, or 2a+7.
Answer:
The fundamental properties of rectangles are:
- A rectangle is a quadrilateral
- The opposite sides are parallel and equal to each other
- Each interior angle is equal to 90 degrees
- The sum of all the interior angles is equal to 360 degrees
- The diagonals bisect each other
- Both the diagonals have the same length
- A rectangle with side lengths a and b has the perimeter as 2a+2b units
- A rectangle with side lengths a and b has the area as: ab sin 90 = ab square units
- The sum of the interior angles is equal to 360 degrees
- A diagonal of a rectangle is a diameter of its circumcircle
- If a and b are the sides of a rectangle, then the length of each diagonal is:
![\begin{array}{l}d = \sqrt{a^{2}+b^{2}}\end{array}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7Bl%7Dd%20%3D%20%5Csqrt%7Ba%5E%7B2%7D%2Bb%5E%7B2%7D%7D%5Cend%7Barray%7D)
- The diagonals bisect each other at different angles. One is acute, and another one is an obtuse angle
- If the two diagonals bisect each other at right angles, then the rectangle is known as a square
- A cylinder is obtained when the rectangle is rotated along the line joining the midpoint of the longer parallel sides. In this case, the height of the cylinder is equal to the width of a rectangle. Also, the cylinder diameter is equivalent to the length of a rectangle
- A cylinder is obtained when the rectangle is rotated along the line joining the midpoint of the shorter parallel sides. In this case, the height of the cylinder is equal to the length of a rectangle. Similarly, the cylinder diameter is equivalent to the width of a rectangle
Step-by-step explanation:
Since you said, which of the following, I don't see any attachment. Yet, this is my best try at giving you an answer. Please mark my answer brainliest :)
Not sure if this is correct or not but my answer is 48
These were my steps:
2(6+(12divided(3+1)-1
2x6=12. 3+1=4 4-1=3
12divided by 3 =4
So now all we have are 12 from (6x2) and 4 from 12div. By3
Then we multiply 12 with the 4 which =48
Hope that helped and made sense.