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2 years ago

Determine the length of the model. -60 ft- 1 in. = 8 ft =

Mathematics

1 answer:

Stells [14]2 years ago

3 0

Length of the model = 11.6 inch

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Hiiiiiiiiiiiiii there

Ivenika [448]

Answer:

D. 18.18

Step-by-step explanation:

Based on the information given we would set up the ratio

$\frac{27.5}{25} = \frac{20}{x}$ We then cross multiply to get 20x25=27.5x

multiply

500=27.5x

divide to solve for x

x=18.18

width = 18.18

5 0

2 years ago

Figure out the combination.

ValentinkaMS [17]

sorry i don't understand

3 0

2 years ago

Read 2 more answers

Donald's Earnings, x (dollars) Fallons Earnings, y 38 45 43 50 48 55 53 60 58 65 Which equation best represents Fallon's earning

kherson [118]

Given:

The table of values for Fallon's earnings in terms of Donald's earnings.

To find:

The equation that best represents Fallon's earnings in terms of Donald's earnings.

Solution:

In the given table the x-values are increasing by 5 units and y values increasing by 5 units. It means the rate of change of y with respect to x is constant and the table represents a linear function.

If the graph of a linear function passes through two points, then the equation of linear function is

$y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)$

Consider any two points from the table. Let the two points are (38,45) and (43, 50). Then, the equation is

$y-45=\dfrac{50-45}{43-38}(x-38)$

$y-45=\dfrac{5}{5}(x-38)$

$y-45=1(x-38)$

$y-45=x-38$

Adding 45 on both sides, we get

$y=x-38+45$

$y=x+7$

Therefore, the correct option is A.

8 0

2 years ago

The pipe has a length 29cm, internal diameter 6.5cm and thickness 0.5cm. What is the Volume

Reptile [31]

Answer:

Length of pipe = 21 cm

Internal diameter = 4 cm

Internal radius = \frac{4}{2} = 2 cm24=2cm

Thickness = 0.5 cm

Outer radius = 2+0.5=2.5 cm

Volume of pipe =\pi R^2 h - \pi r^2 hπR2h−πr2h

Volume of pipe =\frac{22}{7} (2.5)^2 (21)-\frac{22}{7}(2)^2(21)=148.5 cm^3

=\frac{22}{7} (2.5)^2 (21)-\frac{22}{7}(2)^2(21)=148.5 cm^3722(2.5)2(21)−722(2)2(21)=148.5cm3

Hence The volume is 148.5 cubic cm.

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The thickness of a metal pipe is 1.5cm. The inner diameter is 21cm. What is the volume of metal required for a pipe of length 7cm

5 0

1 year ago

Toni decided to build a rectangular concrete patio 6 feet wide all around her pool.

antoniya [11.8K]

Answer:

648

Step-by-step explanation:

5 0

2 years ago