2 years ago

Use the model to solve for x.

Mathematics

1 answer:

Igoryamba2 years ago

6 0

Answer:

Shouldn't there be a picture if we're told to reference the model?

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PLS HELP GRADIENT FIRST TO ANSWER GETS BRAINLIEST

irinina [24]

Answer:

Step-by-step explanation:

5 0

1 year ago

Iliana was part of a group that was working on changing 0.4 repeated to a fraction. Each member of the group had a different ans

amm1812

$\bf 0.444444444\overline{4}\impliedby \textit{and keeps on going}\\\\
-------------------------------\\\\
\textit{let's say }\boxed{x=0.444444444\overline{4}}\quad \textit{ thus }10\cdot x=4.44444444\overline{4}
\\\\\\
\textit{wait a minute! }4.44444444\overline{4}\textit{ is really just }4+0.444444444\overline{4}$

$\bf \textit{but we know }x=0.444444444\overline{4} \textit{ so then }4+0.444444444\overline{4}=\boxed{4+x}
\\\\\\
\textit{wait a second! }10\cdot x\implies 10x=4.444444444\overline{4}=4+x
\\\\\\
thus\qquad 10x=4+x\implies 10x-x=4\implies 9x=4\implies \boxed{x=\cfrac{4}{9}}$

you can check in your calculator.

anyhow, to get the "recurring decimal to fraction", you start by setting to some variable, "x" in this case, then move the repeating part to the left of the point by multiplying it by some power of 10, and then do the equating.

3 0

2 years ago

Read 2 more answers

Walter and Helen are asked to paint a house. Walter can paint the house by himself

Rudik [331]

Answer:

it will take 28 hour which is 1 day 4 hour

Step-by-step explanation:

if they work together thats mean we have to add. we have to add 12+16 which is equal to 28 hour.....

hope ot helps

4 0

2 years ago