It was 30% off because the site had a discount plus her coupon
To find x, use the equation 2l+2w
In this case, your equation would look like
2(2x-2)+2(5x+4)= 48 cm
Hope this helps!
To determine if 7, 8 and 13 can make a triangle, let's use Pythagorean theorem!
Pythagorean theorem: a² + b² = c²
Now plugging in our numbers: 7² + 8² ≠ 13²
Sadly, these numbers don't work. Therefore we cannot classify the triangle.
Hope this helps!
519 km....ok, lets convert it to centimeters
there are 1000 meters in 1 km, so in 519 km, there are 519 * 1000 meters then.
there are 100 centimeters in 1 meter, so in (519 * 1000) meters, there are then (519 * 1000) * 100 centimeters.
that's how many centimeters Los Angeles is from San Francisco.
now, the slip rate is 2.1 cm per year.
how many times does 2.1 go into (519 * 1000 * 100)?
well, is just (519 * 1000 * 100) / 2.1.
that many years.