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natali 33 [55]
3 years ago
6

How can I use two unit multipliers to convert 42 centimeters to feet?

Mathematics
2 answers:
eimsori [14]3 years ago
6 0

Answer:

1.38 ft

Step-by-step explanation:

42 cm x <u> 3.28 ft  </u>

              100 cm

= 1.38 ft

there are plenty of printable unit conversion on google

rodikova [14]3 years ago
4 0

Answer:

\Huge \boxed{\mathrm{1.38 \ ft}}

\rule[225]{225}{2}

Step-by-step explanation:

\sf 1 \ cm = \displaystyle \frac{1}{30.48} \ ft

To convert 42 cm to ft:

\Longrightarrow \sf \displaystyle \ \ 42 \times \frac{1}{30.48}

\Longrightarrow \sf \displaystyle \ \ \frac{42}{30.48}

\Longrightarrow \sf \displaystyle \ \  1.37795...

42 cm is approximately 1.38 ft.

\rule[225]{225}{2}

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The perimeter of an isosceles trapezoid is 28 in and the ratio of lengths of its bases is 5:3. Find the lengths of the sides of
Natalka [10]
The measurements are:
b₁ = 8.4 inches; b₂ = 14 inches; leg₁ = 2.8 inches; leg₂ = 2.8 inches

Let x = length of base and leg

The formula for perimeter of isosceles trapezoid is P = b₁ + b₂ + 2(leg)
Where: b = base

       P = b₁ + b₂ + 2(leg)
     28 = 3x + 5x + 2(x)
     28 = 8x + 2x
28/10 = 10x/10
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Now, substitute the values:
       P = b₁ + b₂ + 2(leg)
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     28 = 8.4 + 14 + 5.6
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Hence the measurements are:
b₁ = 8.4 inches; b₂ = 14 inches; leg₁ = 2.8 inches; leg₂ = 2.8 inches
8 0
3 years ago
The diameter of a tire is 2.5 ft. Use this measurement to answer parts a and b. Show all work to receive full credit
Alla [95]

Answer:

The answer is below

Step-by-step explanation:

The diameter of a tire is 2.5 ft. a. Find the circumference of the tire. b. About how many times will the tire have to rotate to travel 1 mile?

Solution:

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Circumference = 2π × radius; but diameter = 2 × radius. Hence:

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Given that diameter of the tire = 2.5 ft:

Circumference of the tire = π * diameter = 2.5 * π = 7.85 ft

b) since the circumference of the tire is 7.85 ft, it means that 1 revolution of the tire covers a distance of 7.85 ft.

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The number of rotation required to cover 1 mile (5280 ft) is:

number of rotation = \frac{5280\ ft}{7.85\ ft\ per\ rotation}=672\ rotations\\\\\\

4 0
3 years ago
Read 2 more answers
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asambeis [7]

Answer:

4

Step-by-step explanation:

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c = cups of cranberry juice.

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8 0
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Vaselesa [24]
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