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horsena [70]
3 years ago
9

Haily paid $13 for 1 and 3/7 kf of sliced salami. What was the cost per kilogram of salami?

Mathematics
1 answer:
nikdorinn [45]3 years ago
4 0

13 divided by 1 and 3/7=9 and 1/10

$9.10

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Solve. Write the solution in interval notation. -2x>-8 and -5x<20.
Novosadov [1.4K]

Answer:

The interval notation of the solution is (-4 , 4)

Step-by-step explanation:

* Let us explain a very important point in solving inequality

- When you multiply or divide an inequality by negative number we

   must reverse the symbol of the inequality

- Ex:

∵ 2 < 3

- If we multiply the both sides of the inequality by -1, then the

  inequality will be -2 < -3 and this is completely wrong, so we must

  reverse the symbol of the inequality

∴ -2 > -3

* Now let us solve the problem

∵ -2x > -8

- Divide both sides by -2 and remember to reverse the symbol of the

  inequality

∴ x < 4

∵ -5x < 20

- Divide both sides by -5 and remember to reverse the symbol of the

  inequality

∴ x > -4

- From both solutions

∴ -4 < x < 4

∴ The solution is {x : -4 < x < 4}

- Interval notation is a way of writing the solutions of inequalities

 ( , ) if x does not equal the end numbers

 [ , ] if x equals the end numbers

 [ , ) , ( , ] if x equals one of the two end numbers

* The interval notation of the solution is (-4 , 4)

4 0
3 years ago
15. Will my dot be colored in? 5 &gt;2 X a) Yes. b)no​
Arte-miy333 [17]

Answer:

yes

Step-by-step explanation:

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7 0
2 years ago
find the diameters of a circle with a circumference of 443 feet use 3.14 for n a. 70.5 b. 141 c.142 d.282
zvonat [6]
The formula for diameter is:

circumference/pi (3.14)

If the circumference is 443, we can divide that by pi.

443/3.14=141.01

The answer would then be choice b (141).

3 0
3 years ago
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Answer:

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Step-by-step explanation:

8 0
3 years ago
Where do you prefer to get
pochemuha

Answer:

i do not understand please explain further

5 0
3 years ago
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