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
Ksenya-84 [330]
3 years ago
10

How to answer this question??? thanks

Mathematics
1 answer:
vesna_86 [32]3 years ago
7 0
\dfrac{2m}{5}+3=7(4m-3)\ \ \ \ |use\ distributive\ property:a(b-c)=ab-ac\\\\\dfrac{2m}{5}+3=28m-21\ \ \ \ \ |multiply\ both\ sides\ by\ 5\\\\2m+15=140m-105\ \ \ \ |subtract\ 140m\ from\ both\ sides\\\\-138m+15=-105\ \ \ \ |subtract\ 15\ from\ both\ sides\\\\-138m=-120\ \ \ \ |divide\ both\ sides\ by\ (-138)\\\\m=\dfrac{120:6}{138:6}\\\\\boxed{m=\frac{20}{23}}
You might be interested in
How many times greater os 46 than 0.46?
Usimov [2.4K]
10,000 times greater.
7 0
3 years ago
Read 2 more answers
Just do b d f h and j​
Andrew [12]

Answer:

b) 1.383

d) 2733

f) 41.429

h) 6317

j) 87.889

Step-by-step explanation:

4 0
3 years ago
Somebody solve this plzz
mash [69]

Answer:

Not a function

Step-by-step explanation:

If you use the line/ pencil test ***I think that's what it's called...

you put a pencil flat on the graph and if it touches more than one point, it is not a function. This only works with some graphs.But it works with this one.  

8 0
3 years ago
two parallel lines are graphed on a coordinate plane.how many of the lines could represent proportional relationship?Explain.
soldi70 [24.7K]

It's not necessary that either one represents a proportional
relationship.  But if either one does, then the other one doesn't. 
They can't both represent such a relationship.

The graph of a proportional relationship must go through
the origin.  If one of a pair of parallel lines goes through
the origin, then the other one doesn't. (If two parallel lines
both went through the origin, then they would both be the
same line.)

7 0
3 years ago
Read 2 more answers
Solve by factoring:<br><br> 5x^2 + 19x + 12 = 0
Mariulka [41]

When solving polynomial equations, first set the equation

equal to zero, then check for a Greatest Common Factor.

Since there is no greatest common factor, this will make life a

little bit more difficult because we will have to factor the trinomial.

First, find all possible factors for constant term.

I have listed these in red below.

Make sure to reverse the factors since in each binomial,

the first term is different so we need to reverse the factors.

The factors of 5x² will just be 5x and z.

After finding factors for the constant and the leading

coefficient for your trinomial, we can eliminate some factors.

If you have an odd coefficient on the middle term,

you can eliminate any pairs of even factors.

So the group I crossed out in purple below will be eliminated.

Another strategy is to use factors a little closer together.

So I would go with the 4 and 3 group.

Surely enough, our trinomial does factor with the 4 and 3.

Now set the factored trinomial equal to 0.

Then use zero product property and you have your answer.

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is 39.5% written as a fraction in simplest form please help me please
    9·2 answers
  • A population of insects increases at a rate of 1.5% per day. About how long will it take the population to double?
    15·2 answers
  • Alvin is going to take a flight from Seattle, Washington, to Atlanta, Georgia.
    9·1 answer
  • You are planning to evaluate the mean of a single continuous variable from a study with a sample of n =10 using the t statistic.
    5·1 answer
  • F(x)=(x-2)(x+4) what is the y-intercept and x-intercept
    15·1 answer
  • The senior classes at High School A and High School B planned separate trips to the indoor climbing gym. The senior class at Hig
    10·1 answer
  • Solve the system by graphing y=-2x + 2<br> y=-2x - 2
    8·1 answer
  • A young sumo wrestler decided to go on a special high-protein diet to gain weight rapidly. When he started his diet, he weighed
    15·1 answer
  • Urgent! Math! Can somebody answer 1-3 for me, pls!
    13·1 answer
  • HELP GUYS ASAP THIS QUESTION IS DUE SOLVE
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!