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Drupady [299]
2 years ago
7

Solve the following system of equations using substitution:

Mathematics
1 answer:
iragen [17]2 years ago
6 0

Answer:

x = -1

y = 2

Step-by-step explanation:

y = x+3

x+2y = 3

substitute y

x+2(x+3) = 3

simplify

3x+6 = 3

subtract 6 from both sides

3x = -3

x = -1

y = -1+3 = 2

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Please help me with this
DaniilM [7]

Answer:

false

Step-by-step explanation:

If it was at least 2, it would show x>= 2 which includes 2. However, that question doesn't include 2 so if it is true, it would have said "X is greater than 2"

4 0
3 years ago
Read 2 more answers
A, b, c, or d?? im so bad at this dont even try me
Vika [28.1K]

The median is 7. By definition of "median," half of the data values are below 7; half are above 7. Thus, the first statement is FALSE.

Spread: in the 2nd statement we are comparing the spread from lower quartile (4) to the median (7) and that from the median (7) to the upper quartile (9). In other words, we're comparing 3 to 2. This statement is TRUE.

The 3rd statement is the opp. of the 2nd statement, and thus is FALSE.

The 4th statement is FALSE. See my comments regarding the 1st statement.

8 0
3 years ago
Method to use f(x) =-2x-2
olga_2 [115]

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

8 0
2 years ago
Hannah was asked to make d the subject of the formula<br> d-7=4d+3/e<br> Finish her question.
tigry1 [53]

Answer:

d = \frac{-1}{e} - \frac{7}{3}

Step-by-step explanation:

In order to make d the subject of the formula, you need to isolate it.

- You started with d-7 = 4d + 3/e

- Move 4d to the left side by subtracting 4d from both sides to cancel it from the right so you have...

d - 7 = 4d + 3/e              This will leave you left with -3d - 7 = 3/e

-4d     -4d                          

- Then move over the -7 by adding 7 to both sides...

-3d - 7 = 3/e              This will leave you left with -3d = 3/e + 7

     +7          +7

- Finally to get d by itself divide both sides of the equation by -3 and you'll be left with...

d = \frac{3}{-3e} -\frac{7}{3}

- You can cancel out the 3 in the -3/3e and make it -1/e so your final answer will be

d = \frac{-1}{e} - \frac{7}{3}

5 0
3 years ago
Which of the following equations describes the line shown
Arisa [49]
(-4,4) , (2,1)
slope=(y2-y1)/(x2-x1)
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(y-y1)=m(x2-x1)
y-4=-1/2(x+4)
y-1=-1/2(x-2)

A,F
5 0
3 years ago
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