Percent decrease = (original number - new number) / original number....* 100
= (45 - 27.5) / 45.....* 100
= 17.5 / 45....* 100
= 0.3888 * 100
= 38.9 % decrease <== thats rounded

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=8%20a%20b%20%5E%20%7B%202%20%7D%20%3A%206%20a%20%5E%20%7B%202%20%7D%20b" id="TexFormula1" titl

g100num [7]

$\boxed{\large{\bold{\blue{ANSWER~:) }}}}$

$8ab^{2}:6a^{2}b\\\\=\dfrac{8ab^{2}}{6a^2b}\\\\=\dfrac{2×4×a×b×b}{2×3×a×a×b}\\\\=\dfrac{4b}{3a}\\\\=4b:3a$

4 0

3 years ago

Please help i really need help <br> thanks

Grace [21]

Answer:

B. 31.62

Step-by-step explanation:

First, find the distance of the line using the distance formula, $d=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1} )^2 }$ . Plug the two points (-1,0) and (5,2) into the formula and solve. This gives you 6.32, then this is only one line of a pentagon, which has 5 sides, so you need to multiply. Since you are finding the perimeter, which is all of the sides added together, multiply the one side by 5. 6.32*5=31.62.

6 0

3 years ago