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Mathematics

1 answer:

aleksklad [387]3 years ago

6 0

Answer:

I think the answer is B because i counted all the beads the students had picked out and then put it as the denominato,r and then put the red colored beads as the numerator.

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!!!!!!!!!! 50 POINTS !!!!!!!!!!!! <br><br> PROBLEM IS ATTACHED.

4vir4ik [10]

$(3x-7b)+(2b+2x)= 12b\\ 3x-7b+2b+2x=12b \\ 3x+2x -7b+2b=12b \\ 5x-5b=12b \\ 5x-5b+5b=12b+5b \\ 5x = 17b \\ \\ \boxed {\bf { \frac{17}{5} b}}$

8 0

3 years ago

Read 2 more answers

Carlos is walking on a moving walkway. His speed is given by the function

oee [108]

Well, for 20 you just add them, to get $4x^2-x+3$ . For 21, you do a substraction: $2x^2+7x-11$ . It'd take him quite some time (does this one even have zeros? :)) )

8 0

3 years ago

Part1; The nth term of a geometric sequence is given by a_n = 4(0.75)^n-1, write the first five terms, and find the 5th partial

Lemur [1.5K]

Just take n=1,2,3,4,5 respectively to find out the first 5 terms.

First 5 terms = 4,3,2.25,1.69 respectively.

For the 5th partial sum, just add the first 5 terms.

5th partial sum = 10.34

....

First 4 terms : 5,8,11,14 respectively.

Now you need to find the other next 4 terms to find out the 8th partial sum.

17,20,23,26

8th partial sum = 124

Hope this helps:)

7 0

3 years ago

Indicate the equation of the given line in standard form. The line through (2, -1) and parallel to a line with slope of 3/4

Ket [755]

Well, for a line with a slope of 3/4, any other parallel line to it, will also have the same slope of 3/4

so if the line through (2, -1) is parallel to it, it has a slope of 3/4 as well

$\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
&({{ 2}}\quad ,&{{ -1}})\quad 

\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{3}{4}
\\\\\\
% point-slope intercept
y-{{ y_1}}={{ m}}(x-{{ x_1}})\qquad 
\begin{array}{llll}
\textit{plug in the values for }
\begin{cases}
y_1=-1\\
x_1=2\\
m=\frac{3}{4}
\end{cases}\\
\textit{and move everything}\\
\textit{to the left-hand-side}
\end{array}\\

\left. \qquad \right. \uparrow\\
\textit{point-slope form}$

7 0

4 years ago

A table costs $50 more than a chair. The cost of 6 chairs and 1 table is $750. The equation 6x + x + 50 = 750, where x is the co

never [62]

Answer:

The cost of a chair is $100

The cost of a table is $150

Step-by-step explanation:

6 0

3 years ago