Answer:
hypotenuse²=base²+height²
![\sqrt{85 } {}^{2} = 6 {}^{2} + x {}^{2} \\](https://tex.z-dn.net/?f=%20%5Csqrt%7B85%20%7D%20%7B%7D%5E%7B2%7D%20%20%20%3D%206%20%7B%7D%5E%7B2%7D%20%20%2B%20x%20%7B%7D%5E%7B2%7D%20%20%5C%5C%20)
<h2>85=36+x²</h2><h2>85-36=x²</h2><h2>49=x²</h2><h2>49½=x</h2><h2>x=7 </h2>
There were 45 markers originally in each box.
Step-by-step explanation:
Given,
Boxes ordered = 3 large boxes
Markers given to one teacher = 15
Markers given to 3 teachers = 15*3 = 45 markers
Remaining markers = 90
Let,
x be the original number of markers in 3 boxes.
Total markers - markers given to teachers = markers left
![x-45=90\\x=90+45\\x=135](https://tex.z-dn.net/?f=x-45%3D90%5C%5Cx%3D90%2B45%5C%5Cx%3D135)
There were 135 markers in 3 boxes.
3 boxes = 135 markers
1 box = ![\frac{135}{3}=45\ markers](https://tex.z-dn.net/?f=%5Cfrac%7B135%7D%7B3%7D%3D45%5C%20markers)
There were 45 markers originally in each box.
Keywords: multiplication, addition
Learn more about multiplication at:
#LearnwithBrainly
Answer:
0.8
Step-by-step explanation:
80 out of a 100 squares are shaded in.