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3 years ago

6

A fish tank has black and white fish in the ratio of 2 to 6. Which is another ratio that can describe the black to white fish.

2 answers:

ElenaW [278]3 years ago

5 0

It can also be 1 over 3, or 1:3
thanks are appreciated

Ede4ka [16]3 years ago

4 0

1:3 can be another ratio of black fish to white fish

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3 years ago

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:

$\angle PRO + 65 + 35= 180$

$\angle PRO + 100= 180$

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$\angle PRO = 180-100$

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3 0

2 years ago

is it always,sometimes, or never true that a scatter plot that shows a positive association suggest that the relationship is pro

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When a scatter plot shows a positive association means that there is a linear correlation with a positive slope between the two variables. This correlation can be weaker or stronger (depending on the value of the correlation).
If there is a linear correlation between the two variables, the relation is then a direct proportionality (with slope positive or negative).

Hence, it is always true that <span>a scatter plot that shows a positive association suggests that the relationship is proportional.</span>

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3 years ago