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Anestetic [448]
2 years ago
12

Please Help, I need to get a good grade!

Mathematics
1 answer:
tiny-mole [99]2 years ago
7 0
First I subtracted all the terms in the second equation from the terms in the first one, eliminating all the x terms. that made finding y easy. Then I substituted the value for y into one of the equations to find x :)

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The data set shows the distance, in miles, to school for 10 students.
shepuryov [24]

Answer:

Step-by-step explanation:

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5 0
3 years ago
I don't get this please help me
sveta [45]
There are 28 squares in the box. Hope this helps you
4 0
3 years ago
Read 2 more answers
What is the solution set to the inequality 5(x - 2)(x + 4) > 0?
Butoxors [25]

Answer:

You selected the correct answer: {x | x <<em> </em>-4 or x > 2}

Step-by-step explanation:

5(x - 2)(x + 4) > 0

Use FOIL method to expand (x - 2)(x + 4):

5(x^{2} + 2x - 8) > 0

Distribute 5 into (x^{2} + 2x - 8)

5x^{2} + 10x - 40 > 0

Divide all terms by 5 from both sides of the inequality:

\frac{5x^{2}}{5}  + \frac{10x}{5}  - \frac{40}{5} > \frac{0}{5}

x^{2} + 2x - 8 > 0

Factor the trinomial:

(x + 4) ( x - 2)  > 0

x < -4 or x > -2

Therefore, the solution set to the inequality is {x | x < -4 or x > 2}

<em>Interval notation:  </em>(-∞, -4) ∪ (2, ∞)

8 0
2 years ago
Exam parallelogram ABCD segments CE and BE have lengths 15-X and 2r what is the value of x
natima [27]

Answer:

The whole triangle is 180° , and means + in math

15-x + 2x= 180

-x+2x=180-15

-x+2x=165

2x=165

2x/2=165+/2

=82.5

4 0
3 years ago
Two pairs of statements about Jeff's housing expenditures are given below. How can both pairs of statements be true?
Irina18 [472]

Explanation:

Pair 1 is true if Jeff's monthly income is $600/20% = $3,000.

Pair 2 is true if Jeff's monthly income is $1200/10% = $12,000.

Both pairs can be true if Jeff's monthly income increased by a factor of 4 in the 20 years from 1990 to 2010.

Obviously, Jeff spent more on housing in 2010. (Fortunately for Jeff, that larger expenditure was a smaller fraction of his income.)

5 0
3 years ago
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