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madam [21]
2 years ago
6

One more than the difference between 18 and seven times in number is -9

Mathematics
1 answer:
almond37 [142]2 years ago
7 0
18-7n+1= -9

You just have to ignore the first thing it asks for, and then write out what it's saying. Since it's asking for the difference, you have to subtract what it tells you to. In this case they are asking for you to subtract 7 times a number from 18 which is the same as writing 18-7n. Then, go back to the first thing it asks for and that wants you to add one. You now have this: 18-7n+1. Now all you have to do is set it equal to whatever it asks you for, which is -9. The final product should look like this:

18-7n+1= -9

I hope this helps and if you could let me know if I helped, that would be greatly appreciated!
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Joseph wants to buy a new tennis racquet which cost $200 from the factory. The sports shop marks up the price by 60%. Joseph bou
andriy [413]
Use multipliers:
The normal price the shop would sell the racquet for is:
1.6 * 200 = 320
'1.6' is the multiplier that I got using the percentage. Multiplying a value by 1.6 is the same as increasing the value by 60%. If you multiplied it by 0.1 (which is the same as dividing by 10), you would get just 10% of the value.
Back to the question, now we can use the multiplier 0.75 because we are are reducing the price by 25% (0.25 as a decimal), so:
320 * 0.75 = 240
And now we want just the profit so we take off how much it cost the shop to buy ($200): 240 - 200 = 40
5 0
3 years ago
What is the APY for 6.5% compounded daily
Jet001 [13]
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r = interest rate
n= number of times compounded

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4 0
3 years ago
Richard estimates that he can apply fertilizer to 4,486 square feet of grass in 3/4 hour. How many square feet of grass can Rich
Scrat [10]
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3 0
3 years ago
Which expression is equivalent to (4x^4/2x^3)
gavmur [86]

Answer:

2x

Step-by-step explanation:

Given

\frac{4x^4}{2x^3}

= \frac{4}{2} × \frac{x^4}{x^3}

= 2 × x^{(4-3)}

= 2x

3 0
3 years ago
What is the slope of the line that passes through the pairs of points (-6,8) (2'3)
Alecsey [184]
Im pretty sure the answer is D, because if i used the right formula,
\frac{y2 - y1}{x2 - x1}
you should get this in the formula
\frac{8 - 3}{2 - ( - 6)}
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a 2 subtracting a negative 6 makes it a positive, meaning your just adding 6 plus2, to get 8
6 0
3 years ago
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