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const2013 [10]
4 years ago
13

#24 please help I’m very confused on how to do this

Mathematics
1 answer:
Amanda [17]4 years ago
4 0
(55 km/h) * (1 mi)/(1.609344 km) ≈ 34.2 mi/h

_____
You can do units conversions pretty easily by multiplying by a conversion factor whose value is 1. That is, since
.. 1 mi = 1.609344 km
dividing by the left side we have
.. (1 mi)/(1.609344 km) = 1
This factor has the convenience that it will cancel km and give mi when multiplied by some number off km. That is what we did above. (The "per hour" just went along for the ride. It did not get involved in the units conversion.)
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Consider a circle with a diameter of 5 centimeters. Which equation shows how the relationship between the circumference and the
mrs_skeptik [129]

Answer:

The equation which shows how the relationship between the circumference and the diameter of this circle is equivalent to π is π =  \frac{C}{5} ⇒ answer C

Step-by-step explanation:

In any circle there is a constant ratio between the circumference of the circle and its diameter

This constant ratio is called π

∵ The formula of the circumference of a circle is C = π d,

    where d is the diameter of the circle

- Divide both sides by d

∴ \frac{C}{d} = π

- Switch the two sides

∴ π =  \frac{C}{d}

∵ The diameter of the circle is 5 centimeters

∴ π =  \frac{C}{5}

The equation which shows how the relationship between the circumference and the diameter of this circle is equivalent to π is π =  \frac{C}{5}

5 0
3 years ago
Miss Smith needed 2 1/5 pounds of corn Mesa in order to make tamales. when she went to the grocery store she found a package of
Diano4ka-milaya [45]

Answer:

1 3/5

Step-by-step explanation:

4 0
3 years ago
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antoniya [11.8K]
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The permeters of the triangles shown are equal. Find the side lengths of each triangle
Zielflug [23.3K]

Answer:

AB = 51

BC = 50

AC = 42

PQ = 42

QR = 42

PR = 59

Step-by-step explanation:

Perimeter of ∆ ABC = Perimeter of ∆ PQR

3x + 9 + 3x + 8 + 3x = 3x + 3x + 4x + 3

9x + 17 = 10x + 3

17 - 3 = 10x - 9x

14 = x

.: x = 14

AB = 3x +9 = 3×14+9 = 42+9 = 51

BC = 3x +8 = 3×14+8 = 42+8 = 50

AC = 3x = 3×14 = 42

PQ = 3x = 3×14 = 42

QR = 3x = 3×14 = 42

PR = 4x +3 = 4×14+3 = 56+3 = 59

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3 years ago
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The little square means 90° and a straight line means 180° so 180 minus 68° minus 90° is 22° which leaves,
1) 112° and since you can flip 68° exacly the same on both sides it is a vertical angle which means
3)68.
4) 90°
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