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
I am Lyosha [343]
3 years ago
13

How do you solve for L? L=5B L+7=3(B+7)

Mathematics
2 answers:
Mamont248 [21]3 years ago
7 0
Remember
a(b+c)=ab+ac
and you can do ANYTTHING to be
L=5B
divide both sides by 5
L/5=B
sub L/5 for B in other equation
L+7=3((L/5)+7)
distribute
L+7=(3L)/5+21
minus 7 both sides
L=(3L)/5+14
time boths sides by 5
5L=3L+70
minus 3L both sides
2L=70
divide 2
L=35

TEA [102]3 years ago
4 0
You first plug in 5B for L in the 2nd equation and you get 5B+7=3B+21 (distributive property). Then you simplify and you get B = 7. Then you plug 7 back in the first equation and get L = 35.
You might be interested in
PLZ IF UARE BIG BRAIN AT MATH I NEED HELP PLZ :(
adell [148]

Answer:

A and B is correct

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Consider the quadratic equation x^2=4x-5. How many solutions does the equation have
alexandr402 [8]
There is no solution

8 0
3 years ago
miss. Nikkel want to divide her class of 23 students into 4 equal teams.is this reasonable?why or why not
ella [17]
No, because if you divide 23 / 4, you get 5.75. You can't get 0.75th of a kid. So it is not reasonable, because it is a decimal, and not a whole number.

Hope this helped! ☺♥
6 0
3 years ago
Read 2 more answers
Explain Pe^(rt) How do I use this formula ?
Montano1993 [528]

Answer:

The equation for "continual" growth (or decay) is A = Pert, where "A", is the ending amount, "P" is the beginning amount (principal, in the case of money), "r" is the growth or decay rate (expressed as a decimal), and "t" is the time (in whatever unit was used on the growth/decay rate).

Step-by-step explanation:

<h2>  Don't sweat here is a video link too </h2>

                      Compounding Continuously Pert Formula

                                https://youtu.be/dFsBfi9W7sQ

8 0
2 years ago
75 is 10 more than my number 55 is 10 less than my number what is my number
slega [8]
40 I'm not quite sure but I think that might be the ANWSER!
6 0
3 years ago
Other questions:
  • Write equivalent expressions for x-7.x-2 and x7\x2
    9·1 answer
  • Multiplying a number by 2 and then dividing by 3 is the same as multiplying by what number?
    14·2 answers
  • The LCD of theses fractions? <br> y/x + y/3+ y+1/y<br><br> Answers:<br> 3x+y<br> x+3+y<br> 3x+y
    8·1 answer
  • How do you do this? Been working on it for along time
    10·2 answers
  • What is the value of b^2 - 4ac for the following equation?<br><br> 2x 2 - 2x - 1 = 0
    7·1 answer
  • Hollis house is located at (-1,4). She can walk in a straight line to get to Jedds house. A fast food resturant is located at (-
    12·1 answer
  • Y - 3 = -7/3( x - 6 )​
    12·1 answer
  • A radioactive substance decays exponentially. A scientist begins with 130 milligrams of a radioactive substance. After 24 hours,
    15·1 answer
  • A player scored 5 more points than Rodger.
    12·2 answers
  • Solve the Math problem
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!