When eight times an unknown number is decreased by 208 the result is four times the unknown number.

1 answer:

6 0

I think

This is your typical algebra question where you are looking for an unknown value given some information. The information can be set up as:
8 - x = 4*(x +3)

Distribute the 4:
8 - x = 4x + 12

Rearrange to get variables on one side:
8 - 12 = 4x + x

Simplifiy:
-4 = 5x

Isolate the variable:
-4/5 = x

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At a rate of 4% you paid $144 in interest over to year. What was the original amount of your loan

dem82 [27]

$\bf ~~~~~~ \textit{Simple Interest Earned}
\\\\
I = Prt\qquad 
\begin{cases}
I=\textit{interest earned}\to &\$144\\
P=\textit{original amount deposited}\\
r=rate\to 4\%\to \frac{4}{100}\to &0.04\\
t=years\to &1
\end{cases}
\\\\\\
144=P(0.04)(1)\implies \cfrac{144}{(0.04)(1)}=P\implies 3600=P$

8 0

3 years ago

Any smart people want to help me

Alexus [3.1K]

Answer:

$217.50

Step-by-step explanation:

$135 + (11*$7.50) = $217.50

3 0

3 years ago

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Please Help!!!<br> I know the answer but need work.

hammer [34]

How do you know the answer if you don't have the work?

2/3(x+1/8) =1/6(x)
2/3×x+2/3×1/8=1/6(x)
2/3(x)+1/12=1/6(x)
2/3(x)-2/3(x)+1/12=1/6(x)-2/3(x)
1/12=1/6(x)-2/3(x)
1/12=1/6(x)-4/6(x)
1/12=-3/6(x)
1/12÷-3/6=-3/6(x)÷-3/6
-1/6=x

3 0

2 years ago

Please help me answer this question.

Wittaler [7]

Answer:

I might be wrong though

7 0

2 years ago

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Least common multiple of 13 and 52?

Kruka [31]

2213 would be the correct answer