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3 years ago

Is this table proportional? explain

Mathematics

2 answers:

igor_vitrenko [27]3 years ago

8 0

Answer:

No.

Step-by-step explanation:

This table is not proportional because the outputs do not get their answer using the same equation. The first to inputs and outputs ( $\frac{1}{2}$ and $\frac{1}{4}$ ; 1 and $\frac{1}{2}$ ) are proportional. You multiply the input (distance) by $\frac{1}{2}$ to get the output (hours). The final option of input and output ( $2\frac{1}{2}$ and $1\frac{1}{4}$ ) is not proportional.

Hope it helps!

MAVERICK [17]3 years ago

6 0

Answer:

yes because the hours to distance is moving at a constant rate and if you were to graph it, it would also go through the origin

Step-by-step explanation:

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50 37 ? start fraction, 37, divided by, 50, end fraction of a number is what percentage of that number?

nalin [4]

Answer:

$74\%$

Step-by-step explanation:

Let

n------> a number

we have

$\frac{37}{50}n$

n represent the 100%

by proportion

$\frac{100}{n}=\frac{x}{(37/50)n}\\ \\x=100*(37/50)\\ \\x=74\%$

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4 years ago

What's 0.14 - 0.91 ?

xxTIMURxx [149]

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4 years ago

What is the percent of change from 20 to 33?

Andrew [12]

Answer:

65%

Step-by-step explanation:

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3 years ago

Use the method of disk or washer to set up, but do not evaluate, an integral for a volume of the solid obtained by rotating the

Sedbober [7]

Answer:

V = π /2 volume units

Step-by-step explanation:

Volume of y = √x bounded by y = x and y = 1

y = √x

limits of integration ( see Annex )

By simple inspection limits of integration are x = 0 to x = 1

or y = √x and y = x

solving these two equations

x = 0 y = 0 x = 1 y = ± 1

V = ∫ π*f(x)²*dx

V = π * ∫₀¹ x*dx = π * x²/2 |₀¹

V = π * (1/2) - 0

V = π /2 volume units

3 0

3 years ago

Please someone solve this problem <br>I really need answers

yulyashka [42]

Answer:

x = 50°

y = 50°

z = 80°

Step-by-step explanation:

working out x:

angles on a straight line add up to 180°

x + 130° = 180°

subtract 130 on both sides

x = 180° - 130°

x = 50°

working out y:

two vertical lines means that both sides are equal, so both angles are also equal (it's an isosceles triangle). This means that y is the same angle as x = 50°

y = 50°

working out z:

the sum of a triangle add up to 180°

add up the angles of x and y and equate to 180°

50 + 50 + z = 180

100 + z = 180

subtract 100 on both sides

z = 180 - 100

z = 80°

8 0

2 years ago