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kirill [66]
2 years ago
8

Suppose you receive an allowance of $55 and your friend receives an allowance of $40 at the beginning of the month. If you spend

$6 a day and your friend spends $3 a day, after how many days will you and your friend have the same amount of money?
Mathematics
1 answer:
Licemer1 [7]2 years ago
4 0

Answer: 5 days

Step-by-step explanation:

so we need to find:

55 - 6a = 40 - 3a

with a being the days we need to find

-40 on each side

15 - 6a = -3a

+6a on each side

15 = 3a

divide each side by 3

5 = a

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The area of a circle is 153.86 square meters. What is the diameter of the circle? Use 3.14 for π.
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Answer:

Option (2). 14 m

Step-by-step explanation:

Formula to get the area of a circle 'A' = \pi r^{2}

where r = radius of the circle

Given in the question,

Area of the circle = 153.86 square meters

By putting the values in the formula,

153.86 = πr²

r = \sqrt{\frac{153.86}{\pi } }

r = \sqrt{49}

r = 7 meters

Diameter of circle = 2 × (radius of the circle)

                              = 2 × 7

                              = 14 meters

Therefore, diameter of the circle is 14 meters.

Option (2) is the answer.

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in the diagram, ab = 15 in., bc = 12 in., and cd = 13 in. if the circle is inscribed in the quadrilateral, find ad. a. 12 in. b.
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