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Nadusha1986 [10]

2 years ago

6

Ruby frosted 8 cookies in 20 minutes. At this rate how many cookies could she frost in 2 hours?

1 answer:

svlad2 [7]2 years ago

3 0

We know that an hour has 60 minutes. She took 20 minutes to do one batch so we can see how many batches she makes with dividing 60 by 20. This would give us 3 batches per hour. Now we know she makes 8 frosted cookies per 20 minutes so we multiply 8 by 6 (2 hours as 20 min) and it would give us 48 frosted cookies

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Write 265000 in standerd form

Elena-2011 [213]

Answer:

$2.65 \times {10}^{5}$

Step-by-step explanation:

$2.65 \times 10 ^{5} \\ 2.65 \times 100000 \\ = 265000$

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Answer:18.9 miles

1 inch=5.4

3.5 inches =3.5×5.4

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To the nearest tenth, which choice is the length of AC?

Alex787 [66]

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Step-by-step explanation:

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katovenus [111]

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The Eiffel Tower in Paris, France. Lizbeth is 5.5 feet tall. She looks up at an angle of elevation of 72° to see the top from 31

garri49 [273]

Answer:

The height of the Eiffel Tower will be 318 feet.

Step-by-step explanation:

Please check the attached graph.

From the diagram, it is clear that Lizbeth is 5.5 ft tall, seeing the top from 318 feet away, making an angle of elevation to be 72⁰.

The diagram makes a right-angled triangle.

Given the angle = Ф = 72⁰

Adjacent = a = 5.5 ft

Opposite = b = 318 ft

Hypotenuse = the height of the Eiffel Tower = c ?

Pythagorean Theorem:

For a right-angled triangle, with sides 'a' and 'b', the hypotenuse 'c' is defined as:

$c=\sqrt{a^2+b^2}$

$a=5.5$

$b=318$

$c=\sqrt{5.5^2+318^2}$

$c=318$ feet

Therefore, the height of the Eiffel Tower will be 318 feet.

3 0

1 year ago