3 years ago

2p - (p + 3) ÷ 3. For p = 6

Mathematics

2 answers:

Nimfa-mama [501]3 years ago

6 0

Answer:

Explanation:

2p - (p + 3) ÷ 3

Insert '6' For 'p'

2(6) - (6 + 3) ÷ 3

Parenthesis: 6 + 3 = 9

2(6) - 9 ÷ 3

Multiply: 2(6) = 12

12 - 9 ÷ 3

Divide: 9 ÷ 3 = 3

12 - 3

subtract: 12 - 3 = 9

- PNW

Scilla [17]3 years ago

4 0

Answer:

Step-by-step explanation:

We can plug the value p=6 into the equation.

2*6-(6+3)/3=

12-9/3=

12-3=

<em>I hope this helps! :)</em>

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A pole that is 3m tall casts a shadow that is 1.22m long. At the same time, a nearby building casts a shadow that is 38.5m long.

vichka [17]

Refer to the diagram shown below.

The height of the pole is CD (3 m), and its shadow is AB (1.22 m).
The height of the building is h m, and its shadow is AD (38.5 m).

The two triangles ΔABC and ΔADE are similar because of AAA.
Therefore
$\frac{DE}{BC} = \frac{AD}{AB} \\\\ \frac{h}{3} = \frac{38.5}{1.22}$

Cross multiply.
1.22 h = 3*38.5 = 115.5
h = 115.5/1.22 = 140.91 m

Answer: 141 m (nearest meter)