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AVprozaik [17]
1 year ago
10

Which are correct representations of the inequality –3(2x – 5) < 5(2 – x)? Select two options.

Mathematics
1 answer:
Natalija [7]1 year ago
4 0
The answer that you have is tricky but the answer is -5x
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Jackie’s test scores for the first semester are listed below.
jek_recluse [69]

Answer:

The answer is 91

Step-by-step explanation:

90 x 6 = 540

The numbers need to equal 540 all together to make an average of 90.

97 + 86 + 83 + 95 + 88 = 449

540 - 449 = 91

To check:

97 + 86 + 83 + 95 + 88 + 91 = 540

Therefore, the answer is 91

8 0
2 years ago
Which gives 55+100 as a product of GCF and a sum?
leonid [27]

Answer:

I think 155 is a answer and thanks for point

6 0
3 years ago
Determine whether parallelogram JKLM with vertices J(-1, -1), K(4, 4), L(9, -1) and M(4, -6) is a rhombus, square, rectangle or
ser-zykov [4K]
Its all rhombus , square and rectangle with all the sides √50
3 0
3 years ago
Read 2 more answers
There are 16 girls and 20 boys in the school band. Express an equivalent ratio of boys to total number of students in the school
Alex17521 [72]

Answer:

4:5

Step-by-step explanation:

half of 16 is 8, and half of 8 is 4

and half of 20 is 10, and half of 10 is 5

hope i helped man

8 0
3 years ago
A survey of shoppers is planned to determine what percentage use credit cards. prior surveys suggest​ 63% of shoppers use credit
Alona [7]
We would need a sample size of 560.

We first calculate the z-score associated. with this level of confidence:
Convert 95% to a decimal:  95% = 95/100 = 0.95
Subtract from 1:  1-0.95 = 0.05
Divide by 2:  0.05/2 = 0.025
Subtract from 1:  1-0.025 = 0.975

Using a z-table (http://www.z-table.com) we see that this is associated with a z-score of 1.96.

The margin of error, ME, is given by:
ME=z*\sqrt{\frac{\hat{p}(1-\hat{p})}{n}}

We want ME to be 4%; 4% = 4/100 = 0.04.  Substituting this into our equation, as well as our proportion and z-score,
0.04=1.96\sqrt{\frac{0.63(1-0.63)}{n}}&#10;\\&#10;\\\text{Dividing both sides by 1.96,}&#10;\\&#10;\\\frac{0.04}{1.96}=\sqrt{\frac{0.63(0.37)}{n}}&#10;\\&#10;\\\text{Squaring both sides,}&#10;\\&#10;\\(\frac{0.04}{1.96})^2=\frac{0.63(0.37)}{n}&#10;\\&#10;\\\text{Multiplying both sides by n,}&#10;\\&#10;\\n(\frac{0.04}{1.96})^2=0.63(0.37)&#10;\\&#10;\\n(\frac{0.04}{1.96})^2=0.2331&#10;\\&#10;\\\text{Isolating n,}&#10;\\&#10;\\n=\frac{0.2331}{(\frac{0.04}{1.96})^2}=559.67\approx560
3 0
3 years ago
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