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Katena32 [7]
3 years ago
8

A class is going on a field trip to see a movie. Each ticket is $8.00. The number of students, n, who will receive a $8.00 ticke

t is proportional to the total cost, C, of all the tickets. Which equation could be used to find the total cost of all the tickets
Mathematics
1 answer:
garik1379 [7]3 years ago
6 0
The equation would be 8n=c

Hope this helps!
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3 T-shirts cost $12. How<br> much will 50 T-shirts<br> cost?
LekaFEV [45]

Answer:

$200

Step-by-step explanation:

First, find the unit rate:

12/3= 4

Then multiply:

4*50= 200

Hope this helps!

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2 years ago
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Answer all three please having trouble
Alona [7]

Answer:

1) b 243

Sorry, I couldn't figure out the other two..

Step-by-step explanation:

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3 years ago
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-2/9 - (-1/3 divided 3/5)<br> PLEASE HURRYY
charle [14.2K]

Answer:

1/3

Step-by-step explanation:

-1/3 divided by 3/5 = -5/9

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2 years ago
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If (ax+2)(bx+7)=15x2+cx+14 for all values of x, and a+b=8, what are the 2 possible values fo c
dolphi86 [110]

Given:

(ax+2)(bx+7)=15x^2+cx+14

And

a+b=8

Required:

To find the two possible values of c.

Explanation:

Consider

\begin{gathered} (ax+2)(bx+7)=15x^2+cx+14 \\ abx^2+7ax+2bx+14=15x^2+cx+14 \end{gathered}

So

\begin{gathered} ab=15-----(1) \\ 7a+2b=c \end{gathered}

And also given

a+b=8---(2)

Now from (1) and (2), we get

\begin{gathered} a+\frac{15}{a}=8 \\  \\ a^2+15=8a \\  \\ a^2-8a+15=0 \end{gathered}a=3,5

Now put a in (1) we get

\begin{gathered} (3)b=15 \\ b=\frac{15}{3} \\ b=5 \\ OR \\ b=\frac{15}{5} \\ b=3 \end{gathered}

We can interpret that either of a or b are equal to 3 or 5.

When a=3 and b=5, we have

\begin{gathered} c=7(3)+2(5) \\ =21+10 \\ =31 \end{gathered}

When a=5 and b=3, we have

\begin{gathered} c=7(5)+2(3) \\ =35+6 \\ =41 \end{gathered}

Final Answer:

The option D is correct.

31 and 41

8 0
1 year ago
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