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kow [346]
3 years ago
8

8) y is inversely proportional to x?. When x = 4, y = 3. Find y when x = 5.

Mathematics
1 answer:
Anon25 [30]3 years ago
8 0

Answer:

\displaystyle y=2.4

Step-by-step explanation:

{\displaystyle y\propto \frac{1}{x} }

\displaystyle y=\frac{k}{x}

\displaystyle 3=\frac{k}{4}

\displaystyle 3 \times 4=k

\displaystyle k=12

\displaystyle y=\frac{12}{5}

\displaystyle y=2.4

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AleksandrR [38]
B. A worker with 40 hours of training is paid $1700 per month.
4 0
3 years ago
Andy is designing a dice tray in the shape of a rectangular prism to use during a role-playing game. The tray needs to be three
Dmitry_Shevchenko [17]

Answer:

3x^2 + 15x - 252 = 0

Step-by-step explanation:

The volume of the prism is 252 cubic centimeters.

The volume of a rectangular prism is gotten by the formula:

V = l * w * h

where l = length

w = width

h = height

The height of the prism is 3 cm.

Let x be the width of the prism.

The length of the prism is 5 cm longer than the width.That is:

l = 5 + x

The volume of the prism is therefore:

V = (5 + x) * x * 3

=> 252 = (5x + x^2) * 3\\\\252 = 15x + 3x^2\\\\=> 3x^2 + 15x - 252 = 0

This is the equation that models the volume of the tray in terms of x.

6 0
3 years ago
MATH QUESTION!! PLEASE HELP
svlad2 [7]

bro i literally had the same question about this

you in honors or something? sry i only got A

I might have B later on or something

Answer:

A.

41.125π ≈ 129

149.875π ≈ 471

Step-by-step explanation:

Surface area of smaller ganza:

3.5/2 = 1.75 x 1.75 = 3.0625 x 3.14 = 9.61625 x 2 = 19.2325

1.75 x 10 = 17.5 x 3.14 = 54.95 x 2 = 109.9 + 19.2 = 129 (Rounded)

Surface area of larger ganza:

5.5/2=2.75 x 2.75 = 7.5625 x 3.14 = 23.74625 x 2 = 47.4925

2.75 x 24.5 = 67.375 x 3.14 = 211.5575 x 2 = 423.115 + 47.4925 = 471 (Rounded)

π

129/3.14 = 41.125

471/3.14 = 149.875

4 0
2 years ago
Read 2 more answers
Complete the table of input/output pairs for each function
Nadusha1986 [10]
Answers:

Input 0 = Output 25

Input 1 = Output 23

Input 4 = Output 17

Input 7 = Output 11

Equations:

25 = 25 - (2*0)

23 = 25 - (2*1)

17 = 25 - (2*4)

11 = 25 - (2*7)


Don’t know if this is right or not, if it isn’t sorry!
4 0
3 years ago
A baseball player hits a pop fly ball toward left field where it is caught by a player at a height of 5 feet. The ball was hit a
MakcuM [25]

Answer:

The range of the function are the values of height which are from 3, 4, 5, ..., 50

Step-by-step explanation:

The given parameters are;

The height at which the ball is caught = 5 feet

The height at which the ball was hit = 3 feet

The maximum height reached by the ball = 50 feet

The height of the ball given as a function of time is f(t) s = u·t - 1/2·g·t²

Where;

s = 50 feet

g = 9.81 m/s²

Therefore, we have;

50 = u·t - 1/2 × 9.81 × t²

50 = u·t - 4.905 × t²

Therefore, the range are obtainable values for f(t) which range from 3 to 50.

5 0
3 years ago
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