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Natasha2012 [34]
3 years ago
11

Please try to answer quickly :) thanks

Mathematics
1 answer:
andrezito [222]3 years ago
6 0
Im pretty sure that it is the first answer
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Andrew
PilotLPTM [1.2K]
Let's say Bailey takes "b" days to paint it.

and Andrew takes "a" days to paint the same house.

now, Andrew is 6 times faster than Bailey, therefore, if Andrew takes "a" days to do it, Bailey takes then "6a" days, or b = 6a.

now, the year they worked together, they finished it in 7 days.

so, after 1 day then, they have only done 1/7 of the whole work.

and Andrew for one day, has done 1/a of the house, whilst Bailey has done 1/b of the house or 1/(6a).

\bf \stackrel{\textit{Andrew's rate}}{\cfrac{1}{a}}+\stackrel{\textit{Bailey's rate}}{\cfrac{1}{b}}=\stackrel{\textit{1 day of work}}{\cfrac{1}{7}}
\\\\\\
\cfrac{1}{a}+\cfrac{1}{6a}=\cfrac{1}{7}\impliedby 
\begin{array}{llll}
\textit{let's multiply all by }\stackrel{LCD}{42a}\textit{ to toss the}\\
denominators
\end{array}

\bf 42a\left( \cfrac{1}{a}+\cfrac{1}{6a} \right)=42a\left( \cfrac{1}{7} \right)\implies 42+7=6a\implies \cfrac{49}{6}=a
\\\\\\
\stackrel{days}{8\frac{1}{6}}=a
\\\\\\
\textit{how many days will it take Bailey then?}\quad b=6a
\\\\\\
b=6\cdot \cfrac{49}{6}\implies b=\stackrel{days}{49}
6 0
3 years ago
On a certain hot​ summer's day, 696 people used the public swimming pool. The daily prices are $1.75 for children and $2.00 for
mart [117]

Answer:

i dont know

Step-by-step explanation:

5 0
2 years ago
A cone and a cylinder have equal volume and bases of the same diameter if the height of the cone is 36 CM what is the height of
Oliga [24]
About 34 CM Height

Step By Step explanation
5 0
3 years ago
Pls help I’ve been stuck on this forever!!
andrew-mc [135]

Answer:

triangles always add up to 180 degrees on the interior and because it has equal sides and angles, the triangle is equalateral.

4 0
2 years ago
The area of a triangle is 36 sq. inches. If the base of the triangle is 6 inches, what is its height?
tresset_1 [31]
According to your question the height for the triangle is 12inch
3 0
3 years ago
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