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natima [27]
3 years ago
13

Hey besties I need help

Mathematics
2 answers:
larisa86 [58]3 years ago
8 0

Answer:

ok

Step-by-step explanation:

yes

jarptica [38.1K]3 years ago
7 0
3-4 No 5-7 Yes

Explanation:
If you substitute each number in for z and multiply by the coefficient, 8, you’ll find that 8*3=24, 8*4=32 which are both less than 40, not greater than or equal to as is asked for. On the other hand, you have 8*5=40, 8*6=48 and 8*7=56, all either equal to or greater than 40.
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If I buy a stereo for $245 and this includes GST of 10%, what is the pre-GST price?
Ivan

Answer:  $222.73

===========================================

Work Shown:

x = pre-GST price

10% of x = 0.10x = tax amount

x + 0.10x = 1.10x = post-GST price = 245

1.10x = 245

x = 245/1.10

x = 222.7272 approximately

x = 222.73 is the price before tax.

------------

Check:

10% of 222.73 = 0.10*222.73 = 22.273 = 22.27

The tax amount ($22.27) is added to the pre-GST price to get

22.27+222.73 = 245

which matches the post-GST price mentioned.

The answer is confirmed.

Or another way to confirm the answer is to calculate this

1.10*222.73 = 245.003 = 245

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2 years ago
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Answer:

Step-by-step explanation:

the original price was the one she started at

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Step-by-step explanation:

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PLSSS HELP IF YOU TURLY KNOW THISS
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