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3 years ago

11

A group of 40 students went on a field trip. Exactly 8 students wore blue shirts. What percent of the students on the field trip

wore a blue shirt?

2 answers:

Komok [63]3 years ago

8 0

20% of the students wore blue shirts

IgorC [24]3 years ago

4 0

40 x 0.08 = 3.2

3.2% out of the 40 students wore blue shirts.

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10. I am a number between 7 000 000 and 8 000 000.

amm1812

Answer: 31

Step-by-step explanation:

6 0

3 years ago

If this particular arithmetic sequence, a7=34 and a15=74. What is the value of a21

Ilya [14]

This is an arithmetic sequence, meaning, to get the next term, you simply add some value to the current one, namely the "common difference" "d".

now, we know the 17th term is 34, let's go to the 15term then

34 + d
34 + d + d
34 + d + d + d
34 + d + d + d + d
34 + d + d + d + d + d
34 + d + d + d + d + d + d
34 + d + d + d + d + d + d + d
34 + d + d + d + d + d + d + d + d

now, notice, we got to the 15th term, which is 34 + d + d + d + d + d + d + d + d, or namely 34 + 8d, it just so happen we know is 74, therefore,

$\bf 34+8d=74\implies 8d=40\implies d=\cfrac{40}{8}\implies \boxed{d=5}$

ok, now that we know what the common difference is, let's find the first term in the sequence using the 7th term of 34,

$\bf n^{th}\textit{ term of an arithmetic sequence}\\\\
a_n=a_1+(n-1)d\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
d=\textit{common difference}\\
----------\\
n=7\\
d=5\\
a_7=34
\end{cases}
\\\\\\
a_7=a_1+(7-1)5\implies 34=a_1+(7-1)5
\\\\\\
34=a_1+30\implies \boxed{4=a_1}$

and now let's use those 2 found folks, to get the 21st term,

$\bf n^{th}\textit{ term of an arithmetic sequence}\\\\
a_n=a_1+(n-1)d\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
d=\textit{common difference}\\
----------\\
a_1=4\\
d=5\\
n=21
\end{cases}
\\\\\\
a_{21}=4+(21-1)5\implies a_{21}=4+100\implies a_{21}=104$

3 0

3 years ago

■.Given angle TUV and ray UW, if m/TUV = 89,

aniked [119]

The measure of m<WUV is 53 degrees

<h3>Lines and angles</h3>

Given the following parameters

m<TUW = 22 +7x,

m<WUV = 41+ 6x

m<TUV. = 89

The related expression is given as:

m<TUV + m<WUV = m<TUV.

Substitute

22+7x+41+6x = 89

63 + 13x = 89

13x = 89 - 63

13x = 26

x = 2

Determine the measure of m<WUV

m<WUV = 41 + 6(2)

m<WUV = 41 + 12

m<WUV =53 degrees

Hence the measure of m<WUV is 53 degrees

Learn more on line and angles here: brainly.com/question/25770607

#SPJ1

6 0

2 years ago

'calcula que signo tiene el producto de cien números enteros, sabiendo que 27 de ellos son positivos y que ninguno es cero''.

prisoha [69]

Answer:

si a

Step-by-step explanation:

4 0

3 years ago

A company weighs 1,096 boxes of cereal and finds that 12.5% of them weighed less than one pound. Which of

Mice21 [21]

Answer:

137 boxes

Step-by-step explanation:

1096 boxes * 0.125(12.5% of boxes weighing less than a pound) = 137 boxes

8 0

2 years ago