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3 years ago

I don’t know what to do

Mathematics

2 answers:

barxatty [35]3 years ago

8 0

12.60 because 20% of 15 is 3 subtract 3 from 15 it is 12 and 5% of 12 is .60

sergey [27]3 years ago

4 0

20% of 15 is 12$, and tax is 5% so it comes out to 12.60$
The answer is B

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Question 1 of 25

lozanna [386]

Answer:

Step-by-step explanation:

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3 years ago

A kite is stuck in a 36-ft tree. If the angle of elevation from the kite and the ground is 12, find the length of the kite.

yanalaym [24]

Answer:

173.15 ft.

Step-by-step explanation:

Please find the attachment.

Let L be the length of kite.

We have been given that a kite is stuck in 36-ft tree. The angle of elevation from the kite and the ground is 12.

We can see from our attachment that kite and tree form a right triangle. height of tree is opposite of angle of elevation and length of kite is hypotenuse.

Since we know that Sine relates the opposite and hypotenuse of a right triangle, so we will use sine to find the length of kite.

$sin(12)=\frac{36}{L}$

$L=\frac{36}{sin(12)}$

$L=\frac{36}{0.207911690818}$

$L=173.1504364105882792\approx 173.15$

Therefore, the length of kite is 173.15 ft.

4 0

3 years ago

Which choices are equivalent to the expression below?<br> Check all that apply.

gavmur [86]

There’s no answer choices..

5 0

3 years ago

The ratio of the length of Adam's banner to the length of Sam's banner is 5:9. Sam's banner is 40 inches longer than Adam's bann

goblinko [34]

Answer:

Step-by-step explanation:

5:9

x:40

what is the realationship between 9 and 40? -9x5=40

so 5x5=25 so x=25

5:9x5:5=25:40

7 0

3 years ago

Kate can mow lawns at a constant rate of 4/5 lawns per hour. How many lawns can Kate mow in 20 hours?

weqwewe [10]

Answer:

16 lawns

Step-by-step explanation:

set up a proportion:

(4/5 ÷ 1) = (x÷20)

cross-multiply:

5x = 80

x = 16

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3 years ago