All categories

3 years ago

During a sale, a store offered a 40% discount on a tablet that originally sold for $760.

Mathematics

1 answer:

elena-s [515]3 years ago

7 0

Answer:

304

Step-by-step explanation: x/760 40/100=

760x40=30,400

30,400 divided by 100=304

You might be interested in

To measure the satisfaction of their customers Ali Baba restaurant sends out 1000 surveys to their customers. Out of the 823 sur

Dafna1 [17]

Answer:

Th proportion of satisfied customers is

$\hat{p}=0.77$

Step-by-step explanation:

Although 1,000 surveys were send, we may consider our sample is only made by the 823 surveys returned.

Out of the returned surveys (n=823), 635 people said they were satisfied with the restaurant.

Then, the p-hat (proportion of satisfied people) of this sample is calculated as:

$\hat{p}=x/N=635/823=0.77$

If we consider as the sample size all the surveys sent, and assuming the surveys not returned belong to non-satisfied customers, the proportion of satisfied clients is:

$\hat{p}=x/N=635/1,000=0.64$

3 0

3 years ago

..vertex: (4, -1)<br> f(3) = -6

s344n2d4d5 [400]

Answer:

$\huge\boxed{f(x)=-5(x-4)^2-1=-5x^2+40x-81}$

Step-by-step explanation:

The vertex form of an equation of a parabola:

$f(x)=a(x-h)^2+k$

$(h;\ k)$ - vertex

We have

vertex $(4;\ -1)\to h=4;\ k=-1$

$f(3)=-6$

Therefore we have:

$f(x)=a(x-4)^2+(-1)=a(x-4)^2-1$

Substitute $x=3$ and $f(3)=-6$

$a(3-4)^2-1=-6\qquad|\text{add 1 to both sides}\\\\a(-1)^2=-6+1\\\\a(1)=-5\\\\a=-5$

Finally:

$f(x)=-5(x-4)^2-1=-5(x^2-2(x)(4)+4^2)-1\\\\=-5(x^2-8x+16)-1=-5x^2+(-5)(-8x)+(-5)(16)-1\\\\=-5x^2+40x-80-1=-5x^2+40x-81$

4 0

3 years ago

Help me please :''(

ki77a [65]

1/4 2/5 83/100 100/100

4 0

3 years ago

5÷5+6÷6÷6÷6÷6÷6÷6÷6÷6÷6×6×7+7+8+9+3+5*6*6

Reil [10]

Answer:

208.00015

Step-by-step explanation:

Use a calculator. I'm sorry, there's no other way

4 0

3 years ago

Read 2 more answers

Which is the equation of a line that has a slope of 2 and contains the point (0,5)

riadik2000 [5.3K]

$\bf (\stackrel{x_1}{0}~,~\stackrel{y_1}{5})~\hspace{10em} slope = m\implies 2 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-5=2(x-0) \\\\\\ y-5=2x\implies y=2x+5$

7 0

3 years ago