1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
shtirl [24]
3 years ago
8

What is 2a+50=5a-4? Thank you for your time.​

Mathematics
2 answers:
Savatey [412]3 years ago
7 0

Answer:

2a+50=5a-4

5a-2a=50+4

3a=54

a=18

kotykmax [81]3 years ago
7 0

Answer:

a=18

Step-by-step explanation:

2a+50=5a-4\\\mathrm{Subtract\:}50\mathrm{\:from\:both\:sides}\\2a+50-50=5a-4-50\\Simplify\\2a=5a-54\\\mathrm{Subtract\:}5a\mathrm{\:from\:both\:sides}\\2a-5a=5a-54-5a\\\mathrm{Simplify}\\-3a=-54\\\mathrm{Divide\:both\:sides\:by\:}-3\\\frac{-3a}{-3}=\frac{-54}{-3}\\Simplify\\\frac{-3a}{-3}=\frac{-54}{-3}\\\mathrm{Simplify\:}\frac{-3a}{-3}:\quad a\\\frac{-3a}{-3}\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{-b}=\frac{a}{b}\\=\frac{3a}{3}\\\mathrm{Divide\:the\:numbers:}\:\frac{3}{3}=1

=a\\\mathrm{Simplify\:}\frac{-54}{-3}:\quad 18\\\frac{-54}{-3}\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{-b}=\frac{a}{b}\\=\frac{54}{3}\\\mathrm{Divide\:the\:numbers:}\:\frac{54}{3}=18\\=18\\a=18

You might be interested in
Conrad had $110 to spend on 9 cheese pizzas for a party. After buying them, he had $8.75 left. How much did each pizza cost? Sho
Igoryamba
Subtract 110 and 8.75 and you get 101.25 then divide that by 9 and you get 11.25

3 0
3 years ago
Find the solution of the following system of equations -5+2y=9 3x+5y=7
Rudiy27

Answer:

x=-\frac{28}{3}\\\\y=7

Step-by-step explanation:

Given the system of equations:

\left \{ {{-5+2y=9} \atop {3x+5y=7}} \right.

You can pply Substitution method:

First you must solve for "y" from the first equation:

-5+2y=9\\\\2y=9+5\\\\2y=14\\\\y=\frac{14}{2}\\\\y=7

Therefore, the second and final step to solve the system of equations is to substitute the value of "y" into the second equation and solve for "x":

3x+5(7)=7\\3x=7-35\\\\x=-\frac{28}{3}

5 0
3 years ago
Use slopes and y-intercepts to determine if the lines 5x-5y=-2 and -x+2y=4
HACTEHA [7]

The given pair of lines are not perpendicular.

<h3>What is a line?</h3>

The line is a curve showing the shortest distance between 2 points.

5x - 5y = -2 - - - - - (1)
Transform the equation into standard form,
5x + 2 = 5y
y = 5x /5 + 2/5
y = x + 2/5


The slope of equation 1 is m_1 = 1  and intercept c = 2 / 5


Similarly
x + 2y = 4    - - - - - - - -(2)
Transform it into standard form
y = -x/2 + 4 /2
y = -x / 2 + 2


Slope of the equation 2  m_2= -1 / 2 and intercept c = 2
Slope of line 1 * slope of line 2 = 1 * -1/2 = -1/2


Since the lines are not perpendicular because the pair of lines does not satisfy the property of perpendicular lines i.e
m_1*m_2 = -1

Thus, the given pair of lines are not perpendicular.

Learn more about lines here:

brainly.com/question/2696693

#SPJ1  

6 0
1 year ago
What is the value of this expression (4.08)(0.7)?
elena-s [515]
<span> (4.08)(0.7) = 2.856

--------------------------------</span>
7 0
3 years ago
Read 2 more answers
Can someone explain to me step by step how to do -2.5 x -20.
zavuch27 [327]

Answer:

50

Step-by-step explanation:

-2.5 × -20

negative multiply negative equals positive

(-) × (-) = (+)

so, the answer would be positive.

-2.5 × -20

= <u>5</u><u>0</u>

8 0
3 years ago
Other questions:
  • Simplify the radical expression. Leave in radical form. Show your work<br><br> √75 + √3 √75 + √3
    10·2 answers
  • How to calculate the mode of this data?<br> 1.7 8.9 3 5.9 3.2 4.1 6.6 0.7
    5·1 answer
  • Find the slope between the two given points 31,2 and 31,9
    13·1 answer
  • PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!! I NEED TO FINISH THESE QUESTIONS BEFORE MIDNIGHT TONIGHT.
    11·1 answer
  • (a) Find the first 3 terms in ascending powers of x of the binomial expansion of (2+x/2)^6
    12·1 answer
  • 35. A pilot can travel 400 miles with the win
    14·1 answer
  • Which describes condensation?
    11·2 answers
  • Help please. time is really hard for me! Thanks
    11·2 answers
  • Hurryyyyy I’m giving brainliest <br><br> Solve for x.<br> 6x = 78
    8·1 answer
  • Maths help me maths giving 10 point​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!