Answer:
K
=
3
D
(
K
−
4
)
=
5
(
D
−
4
)
k-4=5d-20
5D-k=20-4
5D-3D=16
2D=15
D=8
therefor Daniel has to be 8
Answer: 6 inches
<u>Step-by-step explanation:</u>
Volume (V) = Area of the base (B) × height (h)
Both images have the same volume and the same height, therefore the Area of their bases must be equal to each other.
Area of the triangle
![A=\dfrac{1}{2}\cdot b \cdot h\\\\.\quad=\dfrac{1}{2}\cdot 8 \cdot 9\\\\.\quad= 36](https://tex.z-dn.net/?f=A%3D%5Cdfrac%7B1%7D%7B2%7D%5Ccdot%20b%20%5Ccdot%20h%5C%5C%5C%5C.%5Cquad%3D%5Cdfrac%7B1%7D%7B2%7D%5Ccdot%208%20%5Ccdot%209%5C%5C%5C%5C.%5Cquad%3D%2036)
Area of a square
A = s²
36 = s²
6 = s
D. You would subtract 5(Old) from 2(New) to receive -3 or 3. Then in a Poportional relationship. 3 over 5 (old) is equal to something over 100. You would multiply 5 by 20 to get 100. So, 3 multiplied by 20 is 60% decreased.