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guajiro [1.7K]
3 years ago
10

In a Toy store, the ration of dolls to teddy bears is 9:3. If the store has 240 dolls, how many teddy bears are in the store

Mathematics
2 answers:
agasfer [191]3 years ago
8 0

Answer:

80

Step-by-step explanation:

It means that there are a third part of teddy bears, so

240 / 3 = 80

AleksAgata [21]3 years ago
5 0
9 bears : 3 dolls now multiply both sides by 80.
9x80 bears : 3x80 dolls Now simplify
720 bears : 240 dolls

The answer is 720 teddy bears
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X-intercept means y-coordinate of 0:

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Answer:

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Which is the best estimate of the correlation coefficient for the variables in the scatter plot?
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By using a scatter plot we can get the relationship of two variables or correlation.

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Now a correlation value lie between 0 to 1 if it is very close to 0 like 0.1 , 0.2 then we can say the correlation is weak psitively correlated. and if it will be close to 1 like 0.8 or 0.9 then the correlation will be strong.

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From the above scatter plot notice that it has a negative slope and we can draw a fair estimate line on this scatter plot. So, there is strong negative correlation.

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Answer:

<h3><u>Let's</u><u> </u><u>understand the concept</u><u>:</u><u>-</u></h3>

Here angle B is 90°

So \triangle ABC and \triangle ABD Are right angled triangle

So we use Pythagoras thereon for solution

<h3><u>Required Answer</u><u>:</u><u>-</u></h3>
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perpendicular=p=8cm

Hypontenuse =h =10cm

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According to Pythagoras thereon

{\boxed{\sf b^2=h^2-p^2}}

  • Substitutethe values

\longrightarrow\sf b^2=10^2-p^2

\longrightarrow\sf b={\sqrt {10^2-8^2}}

\longrightarrow\sf b={\sqrt{100-64}}

\longrightarrow\bf b={\sqrt {36}}

\longrightarrow\sf b=6

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\longrightarrowBD=9+6

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  • Now in \triangle ABD

Perpendicular=p=8cm

Base =b=15cm

  • We need to find Hypontenuse =AD(x)

According to Pythagoras thereon

{\boxed {\sf h^2=p^2+b^2}}

  • Substitute the values

\longrightarrow\sf h^2=8^2+15^2

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\longrightarrow\sf h={\sqrt {64+225}}

\longrightarrow\sf h={\sqrt {289}}

\longrightarrow\sf h=17cm

\therefore{\underline{\boxed{\bf x=17cm}}}

3 0
3 years ago
An 8-foot by 5-foot section of wall is to be covered by square tiles that measure 4 inches on each side. If the tiles are not cu
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Answer:

30 tiles

Step-by-step explanation:

SO we need to find the area of the wall so we do

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then we find that area in inches

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Now we find the area of the tiles

4*4=16

So now we divide to find how many tiles are needed

480/16=30

Our answer is 30

6 0
3 years ago
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