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3 years ago

Sold 72 books. if ratio of books to bookmarks is 9:2, how many bookmark was sold?

Mathematics

2 answers:

prohojiy [21]3 years ago

8 0

Answer:

Step-by-step explanation:

They sold 9 book marks for every 2 books (9:2 ratio).

72/9 = 2/x

Cross multiply. 72 * x = 72x

9 * 2 = 18

72 divided by 18 = 40

Monica [59]3 years ago

5 0

Answer:

16 bookmarks were sold

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bagirrra123 [75]

Answer:

$\tan(j) = \frac{35}{12} = 2 \times \frac{9}{12}$

Step-by-step explanation:

remember: tan(theta) = opposite/adjacent

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3 years ago

1. Triangle ABC with coordinate points A(-2,3); B(-1,0); C(5,-4) is rotated 90 degrees clockwise. What

Reil [10]

Answer: A'(3,2), B'(0,1) and C'(-4, -5).

Step-by-step explanation:

When we rotate (a,b) 90 degrees clockwise, the new point will be (b,-a).

i.e. rotation rule for 90 degrees clockwise : (x,y) → (y,-x)

Given: Triangle ABC with coordinate points A(-2,3); B(-1,0); C(5,-4) is rotated 90 degrees clockwise.

Then, the new image points for triangle A'B'C' will be :

A(-2,3) → A'(3,-(-2)) =A'(3,2)

B(-1,0)→ B'(0,-(-1)) = B'(0,1)

C(5,-4) → C'(-4, -5)

Hence, the new image points for triangle A'B'C' are A'(3,2), B'(0,1) and C'(-4, -5).

6 0

3 years ago

Omar has a new credit card. He earns

Mnenie [13.5K]

Answer:

$600

Step-by-step explanation:

Omar spent $600.

Essentially, we divide his total number of points:

1800

by the amount earned

300

we take that and multiply by 100 (our amount needed to be spent to earn points) and boom, problem solved.

4 0

2 years ago

Find the area of the unshaded square

kogti [31]

I think your diagram had an error because the instruction says that it is a SQUARE frame with sides that are 8 inches long.

Anyways, following the question, the area of the shaded parts should be:
2(8 x 2) + 2(8 - 2 - 2)(2)
= 32 + 16
= 48 sq in.

3 0

3 years ago

the volume of a rectangular prism is 4800cm3. the base is 12 cm long and 20 cm wide what is the height of the prism

Paul [167]

For prisms: V = Bh where B is the area of the Base of the prism and h is the height of the prism.

B = 12(20)
B = 240

Now let's substitute into:
V = Bh
4800 = 240h divide both sides by 240
20 = h

So the height of the prism is 20 cm

5 0

3 years ago

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