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3 years ago

What is the average of the sixth even number, fifth and eighth odd number after 200?

Mathematics

2 answers:

pshichka [43]3 years ago

5 0

Answer:

212.

Step-by-step explanation:

5th odd number = 209 ( 201, 203, 205, 207, 209).

8th odd number = 215.

6th even number = 212.

The average = (209 + 215 + 212) / 3

= 212.

ohaa [14]3 years ago

3 0

Answer:

212 is the answer !

Step-by-step explanation:

Firstly, We'll have to write all the numbers till 220 after 200 that is :

201 , 202 , 203 , 204 , 205 , 206 , 207 , 208 , 209 , 210 , 211 ,212 , 213 , 214 , 215 , 216 , 217 , 218 , 219 , 220 .

Here we now know the the 6th even number is 212.

And the 5th odd number is 209.

And the 8th odd number is 215.

By using the formula we can find the average that is :

212+209+215/3 = 636/3 = 212

∴ Your answer is 212 !

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The sides OP and RO of triangle POR are produced to points S and T respectively. If ∠SPR = 145° and ∠POT = 115° , find ∠PRO

Margarita [4]

Answer:

$\angle PRQ = 80$

Step-by-step explanation:

Given

$\angle SPR = 145^o$

$\angle POT = 115^o$

See attachment

Required

Find $\angle PRO$

First, calculate $\angle RPO$

$\angle RPO + \angle SPR = 180$ --- angle on a straight line

So, we have:

$\angle RPO + 145 = 180$

Collect like terms

$\angle RPO = 180 - 145$

$\angle RPO = 35$

Next, calculate PQR

$\angle POR + \angle POT = 180$

So, we have:

$\angle POR + 115 = 180$

Collect like terms

$\angle POR = 180-115$

$\angle POR = 65$

So, PRO is calculated as:

$\angle PRO + \angle POR + \angle RPO = 180$ --- angles in a triangle

So, we have:

$\angle PRO + 65 + 35= 180$

$\angle PRO + 100= 180$

Collect like terms

$\angle PRO = 180-100$

$\angle PRO = 80$

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3 years ago