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2 years ago

Can someone help me out on this problem and show work

Mathematics

1 answer:

Colt1911 [192]2 years ago

6 0

ANSWER 81.92

200/250 = 4/5 = 0.8

250
200 | 250 x 0.8 = 200
160 | 200 x 0.8 = 160
128 | 160 x 0.8 = 128
102.4 | 128 x 0.8 = 102.4
81.92 | 102.4 x 0.8 = 81.92

HOPES THIS HELPS! PLEASE MARK ME BRAINLIEST PLS

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Jason a 4 lengths of rope. The lengths are 3 inches, 15 centimeters, 0.3 meters, and 0.5 feet. About how much rope does Jason ha

AnnZ [28]

Answer: 67.5 cm

Step-by-step explanation:

Jason has 4 lengths of ropes

first is $3\ in.\approx 7.5\ cm$

second is $15\ cm$

Third is $0.3\ m\approx 30\ cm\quad [\text{1 m = 100 cm}]$

fourth is $0.5\ ft\approx 6\ in.\approx 15\ cm\quad [\text{1 ft=12 in.}]$

the total length of rope is the sum of four lengths

$\Rightarrow 7.5+15+30+15=67.5\ cm$

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3 years ago

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3 years ago

The sum of the interior angles of a convex n-sided polygon can be found using the formula:

Maksim231197 [3]

It is: 180(n-2)

For example, the sum of the interior angles of a triangle is 180 degrees.

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The hexagon can be cut into four triangle so the sum of the interior angles of a hexagon is: 180*4=180*(6-2)

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4 years ago

Which ratio is greater 8/15 or 5/9

elena-14-01-66 [18.8K]

Answer:

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3 years ago

Read 2 more answers

Find the recurrence relation satisfied by rn, where rn is the number of regions that a plane is divided into by n lines, if no t

joja [24]

1. Take a look at the pictures attached.

2.

i) the first line divides the plane into 2 regions

ii) the second line adds 2 more regions so we have 4 in total.

iii) the third line adds 3 more regions, so 4+3=7 regions

iv) the fourth line adds 4 more regions.

so the $n^{th}$ line adds n more regions to the ones created by the previous n-1 lines.

3.

$r_1=2$

$r_2=2+2=4$

$r_3=4+3=7$

$r_4=7+4=11$

$r_n=r_n_-_1+n$

So the recurrence relation is

$r_1=2$
$r_n=r_n_-_1+n$

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3 years ago