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3 years ago

Please help me doing this !!! Thank you si much

Mathematics

1 answer:

zysi [14]3 years ago

3 0

Answer:

-3/2

Step-by-step explanation:

This problem is the same thing doing it another way:

9 -5 3 -1 -3

--- x ---- = --- x ---- = ------

10 3 2 1 2

YAY! We are done!! :D

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4 years ago

What is the vertex of the graph of f(x) = |x – 13| + 11?

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Answer:

(13, 11)

Step-by-step explanation:

I graphed the line and the vertex is at 13, 11

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3 years ago

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if thats what B. is supposed to be

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3 years ago

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John took all his money from his savings account. He spent $110 on a radio and 4/11 of what was left on presents for his friend

svp [43]

Answer:

$1210

Step-by-step explanation:

Let x be total amount

First John spent $110 on a radio and 4/11 of what was left on presents for his friends so he was left with

$\frac{7}{11}(x-110)=\frac{7}{11}x-70$

Then he put 2/5 of his remaining money into a checking account

$\frac{3}{5}\left(\frac{7}{11}x-70\right)$

Rest he donated to charity

$420=\frac{3}{5}\left(\frac{7}{11}x-70\right)\\\Rightarrow \left(\frac{7}{11}x-70\right)=\frac{2100}{3}\\\Rightarrow \frac{7}{11}x-70=700\\\Rightarrow \frac{7}{11}x=770\\\Rightarrow x=1210$

Hence total amount of money John originally had was $1210

8 0

3 years ago