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mihalych1998 [28]

3 years ago

12

Over the course of the week, a teacher has no more than 8 student conferences. Write an inequality that represents this situatio

n. Let xx represent the number of student conferences that a teacher has during the week.

1 answer:

allochka39001 [22]3 years ago

4 0

X is less than or equal to 8

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4a/3-b/4=6<br> 5a/6+b=13<br> Solve linear system by elimination

kondor19780726 [428]

$\bf \cfrac{4a}{3}-\cfrac{b}{4}=6
\qquad \qquad 
\cfrac{5a}{6}+b=13
\\\\\\
\textit{let us remove the denominators off those folks}\\
\textit{by multiplying the first one by 12, both sides}\\
\textit{and the second one by 6, both sides, thus}
\\\\\\
12\left( \cfrac{4a}{3}-\cfrac{b}{4} \right)=12(6)\implies 16a-4b=72
\\\\\\
6\left( \cfrac{5a}{6}+b \right)=6(13)\implies 5a+6b=78$

$\bf \textit{now, let's do the elimination}
\\\\

\begin{array}{llll}
16a-4b=72&\boxed{\times 3}\implies &48a-\underline{12b}=216\\\\
5a+6b=78&\boxed{\times 2}\implies &10a+\underline{12b}=156\\
&&--------\\
&&58a+0\quad=372
\end{array}$

solve for "a", once you get "a", plug it back into either equation to get "b"

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3 years ago

Morgan likes to put the same number of trophies on each shelf of her trophy case. She has a total of 75 trophies, and each shelf

ololo11 [35]

Answer:

A=5

Step-by-step explanation:frac{15s}{15}=frac{75}{15}

divide both sides by 15

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3 years ago

Which kind of triangle is showing

Temka [501]

Answer:

it's an scalene triangle

having all the sides and angels different from each other

Step-by-step explanation:

brainliest plz

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3 years ago

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Andrew and Sam start counting from 150 to 200 including. Andrew counts by fives, and Sam counts by threes. What is the ratio of

Agata [3.3K]

Answer:

11/17

Step-by-step explanation:

The question says to find the ratio by which Andrew counts to the ratio Sam counts.

Andrew counts by 5s:

150,155,160,165,170,175,180,185,190,195,200. His total count is 11

Sam counts by 3s:

150,153,156,159,162,165,168,171,174,177,180,183,186,189,192,195,198. His total number of count is 17

The ratio of their count is 11:17

= 11/17

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3 years ago

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A=1/2(a+b)h<br> solve equation for b

siniylev [52]

B=(2a/h) - a is the answer.

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3 years ago