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ICE Princess25 [194]
4 years ago
10

Calculate the speed of an airplane that moves 50 meters in one second in both cm/s and km/s

Mathematics
1 answer:
zaharov [31]4 years ago
4 0
This question is simply conversions

we know there are 100 cm in a m so..
50 × 100 = 5,000 cm/s

and we know there are 1,000 m in a know so..
50 ÷ 1,000 = 50/1,000 = 1/20 km/s
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SVEN [57.7K]

Answer:

5/8 = 20/32

Step-by-step explanation:

if you multiply the denominator and the numerator of 5/8 by 4 it will equal 20/32

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3 years ago
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Simplify to create an equivalent expression. \qquad{-5(3p+3)+9(-7+p)}−5(3p+3)+9(−7+p)minus, 5, (, 3, p, plus, 3, ), plus, 9, (,
Marizza181 [45]

Answer:

Option B: -6p-78

Step-by-step explanation:

The give expression is: -5(3p+3)+9(-7+p)

Expand the brackets and simplify

-(5*3p)-(5*3)-(9*7)+(9*p)\\\\= -15p-15-63+9p\\\\= -15p+9p-15-63\\\\= -6p-78

7 0
3 years ago
A maple tree loses 384 leaves during the first week of fall, and 3/2 as many each successive week. At the end of 7 weeks, all th
Ksenya-84 [330]

Answer:

12,354 leaves

Step-by-step explanation:

Leaves fallen from a maple tree = \sum_{n=0}^{6}  = 384(\frac{3}{2} )^{n}

At the end of 7 weeks

= 384 + 384(1.5) + 384(1.5)² + 384(1.5)³ + 384(1.5)⁴ + 384(1.5)⁵ + 384(1.5)⁶

= 12,354 leaves

12,354 leaves fell from the tree.

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3 years ago
Plzzzzzzzzz helppppppppp
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Here is the correct answer! Have a nice day/night!

5 0
3 years ago
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Which volume could belong to a cube with a side length that is an integer? Recall the formula Cube volume = s cubed. 18 cubic in
irina1246 [14]

We have been given 4 choices. We are asked to choose the volume that could belong to a cube with a side length that is an integer.

We know that volume of a cube is cube of each side length.

To solve our given problem, we will take cube root of each given value. The cube root of which value will be an integer that will be our correct choice.

A. s^3=18

\sqrt[3]{s^3}=\sqrt[3]{18}

s=2.62074

Since cube root of 18 is not an integer, therefore, 18 is not a correct choice.

B. s^3=36

\sqrt[3]{s^3}=\sqrt[3]{36}

s=3.301927

Since cube root of 36 is not an integer, therefore, 36 is not a correct choice.

C. s^3=64

\sqrt[3]{s^3}=\sqrt[3]{64}

s=4

Since cube root of 64 is 4 and 4 is an integer, therefore, 64 is the correct choice.

D. s^3=100

\sqrt[3]{s^3}=\sqrt[3]{100}

s=4.641588

Since cube root of 100 is not an integer, therefore, 100 is not a correct choice.

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3 years ago
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