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3 years ago

0.812 In to a fraction

Mathematics

2 answers:

slavikrds [6]3 years ago

8 0

Answer:812/1000

Step-by-step explanation:

Dmitry [639]3 years ago

5 0

812/1000 that is the answer

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A surf shop rents surfboards and charges x dollars for one rental day. it gives a discount for a weekly seven day rental and onl

Artyom0805 [142]

A. The shop charges $8.517 for a one-day rental

B. The shop charges $42.857 for a weekly rental.

Step-by-step explanation:

Step 1; The shop charges $x for a one-day rental and $5x for a weekly rental. Assume $x = a and $5x = b, from this we can write,

5a = b, take this as equation 1.

Step 2; The shop had a total sale of $600 by renting 20 boards for a one-day rental and 10 boards for a weekly rental. So,

20a + 10b = 600, take this as equation 2.

Substituting equation 1 in 2, we get

20a + 10 (5a) = 600,

20a + 50a = 600, a = 600 / 70,

a = $8.5714.

From equation 1, 5a = b,

5 × $8.5714 = b,

b = $42.857.

So for a one-day rental, the shop charges $8.5714 and for a weekly rental it charges $42.857.

6 0

3 years ago

(4)(5)(6) Geometry Check answers 4) octagon 5) 135 6) 720

allsm [11]

Problem 4

x = interior angle
y = exterior angle
x = 3y since "each interior angle...is three times the measure of each exterior angle"

The interior and exterior angles are supplementary, meaning,
x+y = 180
3y+y = 180
4y = 180
y = 180/4
y = 45

So we know that
n = 360/y
n = 360/45
n = 8

You are correct in saying that this is an octagon

===========================================================================================

Problem 5

x = measure of missing angles

Find the sum of the interior angles
S = 180*(n-2)
S = 180*(5-2)
S = 540
The five interior angles add up to 540 degrees

Add up the five angles, set equal to 540, then solve for x
90+90+90+x+x = 540
2x+270 = 540
2x+270-270 = 540-270
2x = 270
2x/2 = 270/2
x = 135

So you have the correct answer of choice C) 135 degrees

===========================================================================================

Problem 6

S = 180*(n-2)
S = 180*(6-2)
S = 180*4
S = 720

You have the correct answer. Nice work on all three correct answers.

5 0

3 years ago

I know this question is easy, but I don’t really know how to do it? Help? If possible put a quick explanation, it’s fine if not!

lorasvet [3.4K]

Answer:

She left $10.62 the total was $58.87

Hope this helps :)

3 0

3 years ago

The exponential modeled below represents the number of bacteria growing after a certain number or hours has passed.

lorasvet [3.4K]

Answer:

I would say D because if you count how much they go up it's close. but if you dont agree I could also assume B.

8 0

3 years ago

7) There are 5 white balls, 8 red balls, 7 yellow balls and 4 green

stiv31 [10]

Answer:

7. 1/3

8. 1/6

9. 13/24

10. 5/8

11. 17/24

12. 0

Step-by-step explanation:

First find the total number balls by summing the indiviudal number of balls:

Total = 5 + 8 + 7 + 4 = 24

Then, the find any probability divide the number of ways your selected situation can happen from the total:

$probability = \frac{number.of.possible.ways}{total.number.of.ways}$

A final step if you want is to reduce the fraction to its simplest value. For example,

$\frac{2}{4} =\frac{1}{2}$

7) 8/24 = 1/3

8) 4/24 = 1/6

9) (8+5)/24 = 13/24

10) (24 - 5 -4)/24 = 15/24 = 5/8

11) (24 - 7)/24 = 17/24

12) (0)/24 = 0

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6 0

3 years ago