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3 years ago

20 POINTS

Mathematics

1 answer:

TiliK225 [7]3 years ago

3 0

Answer:

Step-by-step explanation:

There are 6 different shapes

You want the outcome to be a Nonagon

You put the outcome as a ratio 1/6

1/6=0.1666667

0.1666667*100=16.6667%

Chance of pulling out a nonagon

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Ok so I need help on how to understand unit rate cause I can't understand my teacher at all XD

Margarita [4]

Answer:

A unit rate is a rate where the second quantity is one unit , such as:

$34 per pound
25 miles per hour
1 minute = 60 seconds
1 hour = 60 minutes
Cost per litre.

Unit rate is used to compare quantities in which the second quantity is one.

5 0

3 years ago

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What is vaule of y when x=4'5

Degger [83]

Answer:

$y = 2.096$ or $y = \frac{2\sqrt5+6}{5}}$

Step-by-step explanation:

Given

$y = \frac{4}{x} + \sqrt x + 0.2 - 5x$

$x = \frac{4}{5}$

Required

Find y

$y = \frac{4}{x} + \sqrt x + 0.2 - 5x$

Substitute $x = \frac{4}{5}$

$y = \frac{4}{4/5} + \sqrt{4/5} + 0.2 - 5 * 4/5$

$y = 5 + \sqrt{4/5} + 0.2 - 4$

Collect like terms

$y = \sqrt{4/5} + 5 + 0.2 - 4$

$y = \sqrt{\frac{4}{5}} + 1.2$

Split the surd

$y = \frac{\sqrt4}{\sqrt5}} + 1.2$

$y = \frac{2}{\sqrt5}} + 1.2$

Rationalize

$y = \frac{2\sqrt5}{\sqrt5*\sqrt5}} + 1.2$

$y = \frac{2\sqrt5}{5}} + 1.2$

Take LCM and add

$y = \frac{2\sqrt5+1.2*5}{5}}$

$y = \frac{2\sqrt5+6}{5}}$

or solve as:

$y = \frac{2*2.24+6}{5}}$

$y = \frac{10.48}{5}$

$y = 2.096$

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3 years ago

Angela can complete 3 RCA problems in 2 minute.how many problems during 2 hours of tutoring?

Taya2010 [7]

Well how many minutes are in an hour? 60. 60/2 is 30, so she can complete 30 problems in an hour. Since it's 30 for one hour, that means she can solve 60 in 2 hours.

Don't forget to rate this answer the Brainliest!

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3 years ago

A cake recipe calls for 3 eggs. How many eggs will you need if you are baking 2 cakes?

MA_775_DIABLO [31]

Answer: You will need six eggs if one cake 3 then two will need 6

Step-by-step explanation: 2x3=6

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4 years ago

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I just need help on the question circled below. (I need the answer ASAP.)

77julia77 [94]

2.5+ 2.5= 5 miles i think

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3 years ago