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4 years ago

B. 1/2 of 4/5 = ____ fifth(s)

Mathematics

1 answer:

MrRissso [65]4 years ago

5 0

Answer:

2 because of the way the question is written

2/5 if you get 2 wrong.

Step-by-step explanation:

1/2 * 4/5 of means multiply

numerator: 1*4 = 4

denominator = 2 * 5 = 10

Answer: 4 / 10 but this will reduce. Divide Top and Bottom by 2

4/2 = 2

10/2 = 5

Answer: 2/5

The way you should answer is 2 because the question gives you the fact that it is in 5ths. If you get it wrong then put in 2/5.

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3 years ago

Miranda earned $c for working 8 hours. Write an expression to show how much Miranda earned for each hour worked.

mixer [17]

Answer: $c divided by 8

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4 years ago

Please solve this question

andrey2020 [161]

Step-by-step explanation:

64^1/3 (64^1/3 - 16^2/3)

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3 years ago

The fifth term of an arithmetic sequence is 100, and the common difference is 4. Find the first three terms of the sequence.

Ronch [10]

$\bf a_n=a_1+(n-1)d\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term}\\
d=\textit{common difference}\\
--------------\\
a_5=100\\
n=5\\
d=4
\end{cases}
\\\\\\
a_5=a_1+(5-1)4\implies 100=a_1+(5-1)4
\\\\\\
\textit{solve for }a_1\textit{ to find the first term}$

then use the common difference "d", to get the 2nd and 3rd terms

-------------------------------------------------------------------------------------------

$\bf a_5=a_1+(5-1)4\implies 100=a_1+(5-1)4\implies 100=a_1+(4)4
\\\\\\
100=a_1+16\implies 100-16=a_1\\\\ 84=a_1\quad 
\begin{cases}
a_1=&84\\
a_2=84+4\to &88\\
a_3=88+4\to &92
\end{cases}$

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4 years ago

Please help if able!! 10 points up!

liraira [26]

Rule to convert from DMS (degrees minutes seconds) format to pure degrees:

x deg, y min, z sec = x+y/60+z/3600

Use that rule to get...

88 deg, 22 min, 45 sec = (88+22/60+45/3600) degrees

88 deg , 22 min, 45 sec = 88.3791667 degrees (approx)

Now use the tangent function on your calculator

tan(88.3791667) = 35.34015179

Answer is choice C. It's not a perfect match due to some rounding errors, but it's close enough.

5 0

4 years ago