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3 years ago

Charlie runs laps around a track. The table shows how long it takes him to run different

2 answers:

7 0

It would take 54 minutes because your multiply the number of laps by 6 to get the amount of minutes. 9x6 = 54. Can I get brainliest

sineoko [7]3 years ago

3 0

It would take 54 minutes

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Help please i suck at geometry

Tems11 [23]

Answer:

Step-by-step explanation:

10 and 8 are equal

11 and 15 are equal

due to the fact that the angles 10 and 11 but also 8 and 15 are supplementary, we know that they add up to be 180 degrees

180-42=138 degrees

and this means that angle 8 will also be 138 because of what we established earlier

5 0

3 years ago

The lay in Burlington collected $3 930 in overdue fees last year. This year, the library

almond37 [142]

Answer:

We conclude that the percent of decrease = 20%

Step-by-step explanation:

Given

Original amount = $3930

Amount of decrease = $3930 - $3144 = $786

Using the formula

Percent of decrease = ( amount of decrease / orignal amount × 100 ) %

= ( 786 / 3930 × 100 ) %

= ( 0.2 × 100 ) %

= 20%

Therefore, we conclude that the percent of decrease = 20%

4 0

3 years ago

Find the area of an octagon whose perimeter is 120 cm.

stira [4]

Answer:

The area of an octagon whose perimeter is 120 cm is 1086.4 $cm^{2}$

Step-by-step explanation:

An octagon is a polygon with eight sides. If the lengths of all the sides and the measurement of all the angles are equal, the octagon is called a regular octagon.

There is a predefined set of formulas for the calculation of perimeter, and area of a regular octagon.

The perimeter of an Octagon is given by

$P=8a$

and the area of an Octagon is given by

$A=2a^{2}(1+\sqrt{2})$

We know that the perimeter is 120 cm, solving for side length (a) in the perimeter formula we get

$120=8a\\\frac{8a}{8}=\frac{120}{8}\\a=15$

Now, we calculate the area

$A=2a^{2}(1+\sqrt{2})\\A=2(15)^{2}(1+\sqrt{2})\\A=450\left(1+\sqrt{2}\right)\\A\approx 1086.4 \:cm^{2}$

5 0

3 years ago

Select all the numbers that belong to the special sequence of square numbers.

ipn [44]

answer:

169

81 =9²

169=13²

7 0

3 years ago

L. Extend Your Thinking Dave is packin

zlopas [31]

Dave can put 5 of each fruit into each box without exceeding 5 kilograms.

5 0

3 years ago