<span>1. Find all factor pairs of a number using a t-chart.
2.Find all the factor pairs of a number using area models.
3.Determine if a number is prime or composite using area models.
4.Find the greatest common factor of two numbers.
<span>5.Find the GCF of two numbers using the distributive property.</span></span>
Answer:
x = 40
Step-by-step explanation:
Here's a fun fact, all of those angles actually add up to 360 degrees!
How do we know this? Well if you were to draw a small arc between each of the lines, you would see that the arc would end up making a circle. And remember, circles have 360 degrees!
Now we can do some basic algebra. Add up all the angles and set that equal to 360.
(2x) + (x) + (3x + 20) + (2x+20) = 360.
8x + 40 = 360
8x = 320
x = 40
Hope this helped!
If my math is right the it’s 21.13
Work:
(17+18+18+19+20+21+21+21+22+22+22+22+
23+25+26)/15
4/8 = 1/2 so it is four eigths in one half. 4/8 simplified is 1/2
