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2 years ago

What is the answer to 1/2 divided by 4/5

Mathematics

2 answers:

solniwko [45]2 years ago

8 0

Answer:

5/8

Step-by-step explanation:

1/2÷4/5

1/2*5/4

5/8

mrs_skeptik [129]2 years ago

4 0

Answer:

0.625

Step-by-step explanation:

1/2 divided by 4/5

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the pitch, or frequency, of a vibrating string varies directly with the square root of the tension. if a string vibrates at a fr

Naily [24]

$\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\begin{array}{llll}
\stackrel{frequency}{f}\textit{ of a vibrating string varies directly}\\
\qquad \qquad \textit{with the square root of the tension }\stackrel{tension}{t}
\end{array}$

$\bf f=k\sqrt{t}\quad \textit{we also know that }
\begin{cases}
f=300\\
t=8
\end{cases}\implies 300=k\sqrt{8}
\\\\\\
\cfrac{300}{\sqrt{8}}=k\implies \cfrac{300}{\sqrt{2^2\cdot 2}}=k\implies \cfrac{300}{2\sqrt{2}}=k\implies \cfrac{150}{\sqrt{2}}=k
\\\\\\
\textit{and we can \underline{rationalize} it to }\cfrac{150\sqrt{2}}{2}\implies 75\sqrt{2}=k$

$\bf thus\qquad f=\stackrel{k}{75\sqrt{2}}\sqrt{t}\implies \boxed{f=75\sqrt{2t}}\\\\
-------------------------------\\\\
\textit{now, when t = 72, what is \underline{f}?}\qquad f=75\sqrt{2(72)}$

5 0

3 years ago

Read 2 more answers

Ht) = -16t+32t+ 10.

KonstantinChe [14]

Answer:
16t + 10

Explanation:
Step 1 - Add like terms

-16t + 32t + 10
16t + 10

5 0

3 years ago

An angle measures 54° less than the measure of a supplementary angle. What is the measure of each angle?

Katen [24]

X+x+54=180
2x+54=180
2x=126
x=63
63+54=117
one angle is 63, the other is 117

8 0

2 years ago

Please Help!!! NOW!!! Need answer, and quick.

cluponka [151]

40 or 45 degrees I say dis cuz if u find da overall area then u can find the degrees

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2 years ago

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Indicate whether the statement below is true or false. A store is offering a 15% discount. Tom wants to know how much he will ha

eduard

Answer:

false

Step-by-step explanation:

I think it is backwards to figure a fifteen percent discount, you would make 15% into .15 and then multiply .15 times the original prioce to see the amount off.

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1 year ago