Answer:
21 is 20% of 105
Step-by-step explanation:
20% * x = 21
20/100 * x = 21
x = 21 * 100/20
x = 105
If you are using a calculator, simply enter 21×100÷20, which will give you the answer.
Answer:
the perimeter of the square is 4√2
Step-by-step explanation:
With this being a square, we know that the distance from (0, 1) to (1, 0) is
√[ (1)² + (-1)² ], or √2.
There are four line segments, all of length √2, so the perimeter of the square is 4√2.
Line them up
3x3= 9, 3x2= 6, 3x5= 15
Add a 0 under the 9, 7x3= 21, leave the 1 and carry the 2, 7x2= 14+2= 16 leave the 6 and carry the 1, 7x5= 35+1= 36
9+0= 9, 6+1= 7, 5+6= 11 leave 1 carry 1, 1+6= 7+1= 8, 0+3= 3
523
x 73
———
1,569
+ 36,610
———
38,179
The equation would be : 10y + 3x = 50
Hope this helps :)
Four spaces down: -4
Two spaces right: +2
So it will be (-4, 2)
