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vova2212 [387]
3 years ago
13

One student solved the inequality −4 > x/-7 and got 28 28. Are they both correct? Explain

Mathematics
1 answer:
dusya [7]3 years ago
8 0

Answer: solutions are the same, just written differently, inequality sign is reversed when multiplying by a negative. Yes, both students are correct.Jul 8, 2018

Step-by-step explanation:

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Please need help on this question.
Stella [2.4K]

Answer:

(4,5)

Step-by-step explanation:

8 0
3 years ago
Find the quantity represented by each percent. 120% of $590
Stella [2.4K]
120% of 590=1.20*590=708.
For x% of a number y, the answer is x/100*y.
5 0
3 years ago
Read 2 more answers
Solve the inequality. Graph the solution.<br><br> −6n&gt;54
AysviL [449]

Answer:

n<-9

us an open circle on -9 pointing to the left

hope this helps

have a good day :)

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
6r-r + 8(15-r)+23-6 is it equivalent to 3r+137
natita [175]

Answer:

No, it's not equivalent

Step-by-step explanation:

Try and solve the one with the bracket first. Expand 8(15-r) : 8x15 and 8x-r = 120 - 8r

Therefore, the equation can now be written as:

6r-r + 120-8r + 23-6

Rearrange the like terms together and solve the equation:

6r-r-8r + 120+23-6 = -3r + 137

7 0
3 years ago
Read 2 more answers
10. The continuously compounded annual return on a stock is normally distributed with a mean of 20% and standard deviation of 30
ehidna [41]

Answer: We should expect its actual return in any particular year to be between<u> -40%</u> and<u> 80%</u>.

Step-by-step explanation:

Given : The continuously compounded annual return on a stock is normally distributed with a mean 20% and standard deviation of 30%.

From normal z-table, the z-value corresponds to 95.44 confidence is 2.

Therefore , the interval limits for 95.44 confidence level will be :

Lower limit = Mean -2(Standard deviation) = 20% -2(30%)= 20%-60%=-40%

Upper limit =  Mean +2(Standard deviation)=20% +2(30%)= 20%+60%=80%

Hence, we should expect its actual return in any particular year to be between<u> -40%</u> and<u> 80%</u>.

7 0
3 years ago
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