All categories

3 years ago

I NEED HELP 11POINTS

Mathematics

1 answer:

baherus [9]3 years ago

8 0

Answer:

500=2.5x+200

x=the amount of desserts.

500-200=2.5x

300=2.5x

x=120

Step-by-step explanation:

You might be interested in

The question is down below

GaryK [48]

180 = x + x+2 + x+1

180=3x+3

177= 3x

x = 59

Angle A = 59 +2 = 61 degrees

7 0

3 years ago

Read 2 more answers

Partitioning- finding the endpoint

ElenaW [278]

Values of x and y will be 12 and 5 respectively.

It's given in the question,

Three points Q, R and S are collinear.
Coordinates of Q → (2, 0)
Coordinates of R → (8, 3)
Coordinates of S → (x, y)
QR : RS = 3 : 2

Since, expression for the coordinates of a point (h, k) which divides the segment joining points $(x_1,y_1)$ and $(x_2,y_2)$ in the ratio of m : n is given by,

h = $\frac{mx_2+nx_1}{m+n}$

k = $\frac{my_2+my_1}{m+n}$

Since, R is a point on segment QS dividing in the ratio of 3 : 2, coordinates of R will be,

$8=\frac{3x+2\times 2}{3+2}$

$8=\frac{3x+4}{5}$

$3x+4=40$

$3x=36$

$x=12$

Similarly, $3=\frac{3y+2\times 0}{3+2}$

$3=\frac{3y}{5}$

$3y=15$

$y=5$

Therefore, values of x and y will be 12 and 5 respectively.

Learn more,

brainly.com/question/8061114

5 0

3 years ago

Kerry purchased a used car for 14,4000. And had to pay 8% sales tax how much did she pay

saul85 [17]

Answer:

Kerry should pay = 155520

Step-by-step explanation:

Total amount paid = 14,4000 + 8% of 14,4000

It is given that,

Kerry purchased a used car for 14,4000. And had to pay 8% sales tax

8% of 14,4000 = (8*144000)/100 = 11520

<u>To find total amount paid</u>

Total amount paid = 14,4000 + 8% of 14,4000

= 14,4000 + 11520 =155520

Therefore Kerry should pay = 155520

4 0

4 years ago

Sales at a fast-food restaurant average $6,000 per day. The restaurant decided to introduce an advertising campaign to increase

Akimi4 [234]

Answer:

The value of the test statistic is 2.8.

Step-by-step explanation:

The test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value expected value for the population mean, $\sigma$ is the standard deviation and n is the size of the sample.

Sales at a fast-food restaurant average $6,000 per day

This means that $\mu = 6000$

Sample of 49

This means that $n = 49$

The sample showed average daily sales of $6,400.

This means that $X = 6400$

Population standard deviation is about $1,000.

This means that $\sigma = 1000$

The value of the test statistic is

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{6400 - 6000}{\frac{1000}{\sqrt{49}}}$

$z = 2.8$

The value of the test statistic is 2.8.

7 0

3 years ago

The points (4,r) and (8,-5) lie on a line with slope -1. Find the missing coordinate rp

seropon [69]

$\bf (\stackrel{x_1}{4}~,~\stackrel{y_1}{r})\qquad (\stackrel{x_2}{8}~,~\stackrel{y_2}{-5}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-5-r}{8-4}~~=~~\stackrel{\stackrel{m}{\downarrow }}{-1}\implies \cfrac{-5-r}{4}=-1 \\\\\\ -5-r=-4\implies -r=1\implies r=-1$

6 0

3 years ago