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love history [14]
3 years ago
8

Solve for X: Show me the steps: -3x = 2x + 19

Mathematics
1 answer:
jenyasd209 [6]3 years ago
3 0

\text{Hello there!}\\\\\text{Solve for x:}\\\\-3x = 2x + 19\\\\\text{Subtract 2x from both sides}\\\\-5x=19\\\\\text{Divide both sides by -5}\\\\x= -19/5\,\,\text{or}\,\,x= -3.8

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PLEASE HELP ASAP!? Which equations in point-slope form are equations of the line that pass through the points (4, 5) and (−3, −1
faust18 [17]
I am not sure about point slope, but I can find an equation in slope-intercept form and convert it, so
y=mx+b, m=slope
slope=(y1-y2)/(x1-x2)
we have points
(4,5)
(-3,-1)
(x,y)
x1=4
y1=5
x2=-3
y2=-1
subsitute
(5-(-1))/(4-(-3))=(5+1)/(4+3)=6/7
y=6/7+b
sybsitute and solve for b
(4,5)
x=4
y=5
5=6/7(4)+b
5=24/7+b
5=35/7
subtract 24/7 from both sides
11/7=b
y=6/7x+11/7
convert to the point slope form and find equivilent fraction
since the question asks for 2 answers that are correct and only 2 of the equations have slope of 6/7 I can guess that the answers are B and C
7 0
2 years ago
Read 2 more answers
The score on a trivia game is obtained by subtracting the number of incorrect answers from twice the number of correct answers.
guajiro [1.7K]

Answer: the player answered 30 questions correctly.

Step-by-step explanation:

Let x represent the number of questions that the player answered correctly.

Let y represent the number of questions that the player answered incorrectly.

The number of questions that the player answered is 40. It means that

x + y = 40- - - - - - - - - - -1

The score on the trivia game is obtained by subtracting the number of incorrect answers from twice the number of correct answers. If the player obtained a score of 50, It means that

2x - y = 50

y = 2x - 50

Substituting y = 2x - 50 into equation 1, it becomes

x + 2x - 50 = 40

3x - 50 = 40

3x = 40 + 50 = 90

x = 90/3

x = 30

5 0
3 years ago
1Joe gets a job picking fruit. Joe is paid $5 for every bushel of apples he
steposvetlana [31]

Answer:

B

Step-by-step explanation:

The number of bushels of apples he picks (B) would be times by 5 as he would earn that much per bushel to get his pay (P)

7 0
3 years ago
If 15/x is equal to 75/100 what is x
Hatshy [7]
15/x=75/100
15/x=3/4
times 4x both sides
4*15=3x
60=3x
divide both sides by 3
20=x
7 0
3 years ago
Read 2 more answers
Which expression is<br> equivalent to -3(4 - 6x)?<br><br><br> show steps please
Ket [755]

Answer:

-3(4 - 6x)

-12 +18x

=18x - 12

Step-by-step explanation:

You multiple the negative 3 with positive 4 to get negative 12.

An you also multiple the negative 3 with negative 6x (a negative multiple a negative changes into positive) giving you 18x as your answer

5 0
3 years ago
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