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mestny [16]
3 years ago
10

The tree in Juan's backyard is 7.7 m high. How high is it in centimeters?

Mathematics
2 answers:
Gala2k [10]3 years ago
5 0
<h3>Given:</h3>

The tree in Juan's backyard is 7.7 m high.

<h3>To Find:</h3>

How high is it in cm.

<h3>Conversion:</h3>

1 m = 100 cm

7 m = 7 × 100 = 700 cm

<h3>Solution:</h3>

7.7 m = ( 700 + 70 ) cm = 770 cm

<h2>Answer:</h2>

770 cm

Therefore, it is 770 cm high.

Digiron [165]3 years ago
3 0

Answer:

770 cm :)

Step-by-step explanation:

1m is 100cm so just multiply 7.7 by 100

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Draw 2 squares. The first one should have an area of 12 square units.The second one should have an area that is DOUBLE that of t
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Step-by-step explanation:

Given the information:

  • 1st square:  12 square units
  • 2nd square: DOUBLE that of the first square = 2*12 = 24 square units

From that, we can determine the length of the side in each square:

1/ x^{2} = 12

<=> x = 2\sqrt{3}

2/ a^{2} = 24

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6 0
3 years ago
jason runs 440 yards in 75 seconds.At this rate how many minutes does it take him to run a mile? (1 mile = 1,760 yards)​
Zepler [3.9K]

Answer: 5 minutes

Step-by-step explanation:

We know that 1760 yards are in a mile. We can convert the given info into a proportion. 440/75 = 1760/x, where x is the number of seconds it takes to run a mile. Cross-multiply to get 440x = 75*1760. Divide both sides by 440 to get x = 75*4 = 300 seconds. The problem asks for how many minutes so you have to convert 300 seconds to minutes. To do this, we have to divide 300 by 60 to get 5 minutes.

7 0
3 years ago
It is given that y varies inversely as x^2. If x is decreased by 50%, find the percentage change in y.
vova2212 [387]

Answer:

300%

Step-by-step explanation:

Given

y\ \alpha\ \frac{1}{x^2}

Required

Find the percentage change in y when x decreased by 50%

First, convert to equation

y\ = \ \frac{k}{x^2}

Where k is the constant of proportionality

When x decreased by 50%

Y = \frac{k}{(x - 0.5x)^2}

Y = \frac{k}{(0.5x)^2}

Y = \frac{k}{0.25x^2}

Expand

Y = \frac{1}{0.25} * \frac{k}{x^2}

Substitute \frac{k}{x^2} for y

Y = \frac{1}{0.25} * y

Y = 4 * y

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The percentage change is then calculated as:

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\%Change = \frac{4y - y}{y} * 100\%

\%Change = \frac{3y}{y} * 100\%

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\%Change = 300\%

<em>The percentage in y is 300%</em>

7 0
3 years ago
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6 0
3 years ago
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SSSSS [86.1K]
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5/25

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3 years ago
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