3 years ago

Why must you flip the inequality symbol when you divide by a negative number?

1 answer:

8 0

That's a good question. When comparing negative numbers the lower one has a greater 'number part ( without the sign)' then the higher one.

For example -4 and -10:- 10 > 4 but -4 > -10.

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Really need help

Ket [755]

$3n - 80 = 5n + 8\\3n=5n + 88\\ -2n = 88\\\\ n = -44$

4 0

3 years ago

Of the students attending a rock concert, 80 of them were 8th graders. Of these 8th graders, 25% of them were wearing ear plugs.

zhuklara [117]

Answer:

15%

Step-by-step explanation:

If 10% of the 25% of 8th graders who were male, 15% would be females because 25-10= 15. So, 15% would be my answer.

6 0

2 years ago

What is 65/8 as a mixed number

Stolb23 [73]

$List\ of\ the\ multiples\ of\ 8:0;\ 8;\ 126;\ 24;\ 32;\ 40;\ 48;\ 56;\ \boxed{64}\\\\\frac{65}{8}=\frac{64+1}{8}=\frac{64}{8}+\frac{1}{8}=\boxed{8\frac{1}{8}}$

6 0

3 years ago

Read 2 more answers

spayn [35]

Answer:

1) y= -.5

2)y= 7

3)x= -2

4 0

3 years ago

Which of the following values is not a perfect square?<br> a.81<br> b.125<br> c.49<br> d.100

SashulF [63]

Answer: b. 125

Step-by-step explanation:

Find the square roots of each, and if the square root is a decimal, it is not a perfect square.

Square root of 81: 9

Square root of 49: 7

Square root of 100: 10

That leaves 125.

4 0

2 years ago

Read 2 more answers