What is the percent decrease from 95 to 19?

Mathematics

2 answers:

serious [3.7K]3 years ago

7 0

Answer:

-80 percent

Step-by-step explanation:

zzz [600]3 years ago

6 0

Answer:

80%

Step-by-step explanation:

19/95=0.20

100%-20%=80%

80%*95=76

95-76=19

You might be interested in

tara needs 216 blocks. each box had 10 bags. each bag has 10blocks how many boxes bags and single blocks does she need to make 2

Fed [463]

2 boxes, 1 bag, and 6 blocks

4 0

4 years ago

Read 2 more answers

Suppose a parabola has an axis of symmetry at x=-5, a maximum height of 9, and passes through the point (-7,1). Write the equati

Nutka1998 [239]

the parabola has maximum at 9, meaning is a vertical parabola and it opens downwards.

it has a symmetry at x = -5, namely its vertex's x-coordinate is -5.

check the picture below.

so then, we can pretty much tell its vertex is at (-5 , 9), and we also know it passes through (-7, 1)

$\bf ~~~~~~\textit{parabola vertex form} \\\\ \begin{array}{llll} y=a(x- h)^2+ k\qquad \leftarrow \textit{using this one}\\\\ x=a(y- k)^2+ h \end{array} \qquad\qquad vertex~~(\stackrel{}{ h},\stackrel{}{ k}) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \begin{cases} h=-5\\ k=9 \end{cases}\implies y=a[x-(-5)]^2+9\implies y=a(x+5)^2+9$

$\bf \textit{we also know that } \begin{cases} x=-7\\ y=1 \end{cases}\implies 1=a(-7+5)^2+9 \\\\\\ -8=a(-2)^2\implies -8=4a\implies \cfrac{-8}{4}=a\implies -2=a \\\\[-0.35em] ~\dotfill\\\\ ~\hfill y=-2(x+5)^2+9~\hfill$