MATHEMATICS MIDDLE SCHOOL

Jada and Alexandra sell spices at the marketplace. They each charge a constant price per kilogram of spices.Jada has weekly expenses of $200. She covers her expenses and makes a profit of $280 for selling 80
kilograms of spices.
The graph of Alexandra's weekly profit (in dollars) as a function of the amount of spices sold (in kilograms) is
shown below.
Who has greater weekly expenses?

Answers

Answer 1
Answer:

Answer:

Alexandra has more weekly expenses.

Step-by-step explanation:

The question seems INCOMPLETE without the attachment.

I am attaching the needed graph for the reference.

The weekly expense of Jade = $200

The amount of spices sold by Jade = 80 kg

Now, total profit = $280

So, the Total Earning for 80 KG spices = Expenses of Jade + Profit

= $200 +  $280 = $480

⇒By selling 80 kg spices in market, Jade earned $480 in 1 week .....(1)

Now, Alexandra sold same amount of spices i.e 80 kg  in the market.

Now,as we can in the graph given:

X  axis : The Spices sold in KG

Y axis : The profit per week (in $)

So, as we can see from it, by selling 80 kg spices, the plot gives us the profit of $240.

⇒By selling 80 kg spices in market, Alexandra earned $240 profit in the same given 1 week .....(2)

by comparing (1) and (2)

Hence, we see that JADE EARNS MORE PROFIT by selling the same amount of spices in the market.

So, Alexandra has more weekly expenses.
Answer 2
Answer:

Answer:

1: alexandra
2: they charge the same price

Step-by-step explanation:

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The regular octagon ABCDEFGH rotates 135º clockwise about its center to form octagon A′B′C′D′E′F′G′H′. Point A′ of the image coincides with point of the preimage. Point B′ of the image coincides with point of the preimage.

Answers

Answer:

The point A′ of the image coincides with point D of the preimage. The point B′ of the image coincides with point E of the preimage.

Step-by-step explanation:

It is given that regular octagon ABCDEFGH rotates 135º clockwise about its center to form octagon A′B′C′D′E′F′G′H′.

It means the central angle divided in 8 equal parts. The central angle between two consecutive vertices is

(360)/(8)=45^(\circ)

The regular octagon ABCDEFGH rotates 135º clockwise.

A=F'

B=G'

C=H'

D=A'

E=B'

F=C'

G=D'

H=E'

Therefore the point A′ of the image coincides with point D of the preimage. The point B′ of the image coincides with point E of the preimage.

Answer:

Point A' will coincide D and B' will coincide with E.

Step-by-step explanation:

In the figure attached we have regular octagon ABCDEFGH. It's a regular octagon means all it's sides are equal and central angle of one sector out of 8 sectors formed will be = (360)/(8)=45

Now this octagon is rotated about it's center to form new octagon A'B'C'D'E'F'G'H'

Since angle of rotation is 135° clockwise which means octagon is rotated by 45×3 = 3×(central angle of one sector)

After rotation clockwise new image will coincide like this

A = F'

B = G'

C = H'

D = A'

E =  B'

F = C'

G = D'

H = E'

Now we can easily tell that point A' will coincide with the point D of preimage. Similarly point B' of the image will coincide with the point E.

In circle K , diameter CD is drawn and point E is located on the circle such that CE=16 and DE=30 .What is the length of the radius of circle K?

Answers

Answer:

The length of the radius of the circle K is 17\ units

Step-by-step explanation:

we know that

The triangle CDE is a right triangle with the 90 degree angle at point E

so

Applying the Pythagoras Theorem

Find the length of CD (diameter of the circle K)

CD^(2)=CE^(2)+DE^(2)

substitute the values

CD^(2)=16^(2)+30^(2)

CD^(2)=1,156

CD=34\ units

Find the radius

Remember that the radius is half the diameter

so

r=34/2=17\ units

Kelly read 40% of a novel, and she now has 108 pages left. How many pages does the novel have?

Answers

Answer:

The novel has 180 pages.

Step-by-step explanation:

108 pages is 60% of the novel.

108 / 3 = 36.

20% of the novel is 36 pages.

36 * 5 = 180 pages

How do I solve for d if d/M-3=R

Answers

Answer:

d = (R+3)(M)

Step-by-step explanation:

d/M - 3 = R

Add 3 both sides

d/M = R+3

Multiply M both sides

d = (R+3)(M)

Hope this helps!

Round 4398202 to nearest hundred

Answers

4398200

round 202 to 200 :)
If you need more help message me so you don't use your points!
Wouldn't be 4398200 because you are just rounding it to the bearest HUNDRED????

 For an average adult the surface area of the skin is about 19,000 square cm and the thickness of the skin ranges from about 0.5mm to 4mm. To put this in perspective, this page has anapproximate area of 630sq cm. How many A4 pages would cover an average adult?

Answers

That's not actually true for "this page", but I know what you mean.

19,000 / 630 = about 30 sheets of A4 paper to cover an average adult's body.

You may be on to a new fashion trend here.
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