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Stells [14]
3 years ago
12

Solve the inequality -2(y + 5) + 20 > 6.

Mathematics
1 answer:
Sindrei [870]3 years ago
3 0

Answer:

y < 2

Step-by-step explanation:

Given

- 2(y + 5) + 20 > 6 ← distribute and simplify left side

- 2y - 10 + 20 > 6

- 2y + 10 > 6 ( subtract 10 from both sides )

- 2y > -4

Divide both sides by - 2, reversing the symbol as a result of dividing by a negative quantity.

y < 2

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Elina [12.6K]

Answer:

right

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Step-by-step explanation:

The first angle is a right angle.  The box in the corner indicates a 90 degree angle

The second angle is less than 90 degrees so it is an acute angle

The third angle is a straight line so it is a straight angle.

The fourth angle is wider than 90 degrees  it is an obtuse angle

4 0
3 years ago
Given: The coordinates of triangle PQR are P(0, 0), Q(2a, 0), and R(2b, 2c). Prove: The line containing the midpoints of two sid
dsp73

Answer:

The answer is (a, 0)

Step-by-step explanation:

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Read 2 more answers
A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is
Scorpion4ik [409]

Answer:

  • 26 ounces of 55% solution
  • 104 ounces of 80% solution

Step-by-step explanation:

Let x represent the quantity of 80% solution. Then 130-x is the amount of 55% solution. The total amount of salt in the mix is ...

  0.80x +0.55(130 -x) = 0.75·130

  0.25x = 0.20·130 . . . . . . . subtract 0.55(130)

  x = 0.20/0.25(130) = 104

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She should use 26 ounces of 55% solution and 104 ounces of 80% solution.

5 0
3 years ago
Describe a relationship in which it would be reasonable to have a negative number in the domain or
Aliun [14]

Answer:

Relationship between temperature at different times of the day during the Winter period in places like Alaska and Minnesota in the USA.

Step-by-step explanation:

An example of a relationship that would have a negative number in the domain or range would be the relationship between the temperature at different times of the day during the snow period in the winter. It's well known that in places like Alaska and Minnesota in the USA, that during the winter when there's very heavy snow, the average temperature is usually below 0°C. The temperature is the dependent variable and is most likely negative in those 2 states and thus the range would have negative numbers.

7 0
3 years ago
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Gala2k [10]

Answer:

180

Step-by-step explanation:

A 180 rotation will be

(x, y) -> (-x, -y)

4 0
3 years ago
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