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
hoa [83]
3 years ago
10

Help pls and tysm because I'm not strong in this area. ​

Mathematics
1 answer:
serious [3.7K]3 years ago
5 0
Alright, first thing's first, simplify the equation as much as you can. If you wanted, I suppose you could just multiply everything by 40, but that's super unconventional.

7x/8 - 3x/8 = 1/5 + 3/10

Simplify:
4x/8 = 1/5 + 3/10

Make sure that when subtracting or adding fractions that the denominators (The number on the bottom of the fraction) are equal.

In order to add 1/5 and 3/10 together, all we have to do is ensure that both denominators are equal.

To do this, simply multiply 1/5 by 2/2. The new fraction will be 2/10 (You can do this since it's the exact same fraction, 2/10 will simplify down to 1/5. The reason we did this was to make sure that the two fractions had equal denominators).

Our equation now looks like this:
4x/8 = 2/10 + 3/10

Add the fractions on the right:
4x/8 = 5/10

Huh, whaddya know? Both the fraction on the left and the right can be simplified into 1/2! (4/8 becomes 1/2, and 5/10 becomes 1/2)

1x/2 = 1/2
x/2 = 1/2

If you want to, I suppose you could cross multiply to check, but the answer's already pretty obvious.

x = 1

Good luck! If you need me to explain anything I did here, just ask :))
-T.B.
You might be interested in
The area of a square is 36 square cenitmeters what is the length of each side of the square​
Kipish [7]
My answer is 9
(Could be wrong)
5 0
3 years ago
Read 2 more answers
Peggy was taking a timed 20-question test. She was able to correctly answer 80% of the questions but had to skip the rest. How m
BartSMP [9]
She got 16 questions correct
6 0
3 years ago
Which property was used to simplify the expression?
Firdavs [7]

The expression is

  • 4(b+2)=4b+8

See

  • 4(b)+4(2)
  • 4b+8

Its distributive property which states that

  • a(b+c)=ab+ac

Option A

6 0
2 years ago
Solve for the values of x in the equation: <br> 2^(x) = 4x.
Eva8 [605]

There are two of them. 

I don't know a mechanical way to 'solve' for them.

One can be found by trial and error:

x=0 . . . . . 2^0 = 1 . . . . . 4(0) = 0 . . . . . no, that doesn't work
x=1 . . . . . 2^1 = 2 . . . . . 4(1) = 4 . . . . . no, that doesn't work
x=2 . . . . . 2^2 = 4 . . . . . 4(2) = 8 . . . . . no, that doesn't work
x=3 . . . . . 2^3 = 8 . . . . . 4(3) = 12 . . . . no, that doesn't work
<em>x=4</em> . . . . . 2^4 = <em><u>16</u></em> . . . . 4(4) = <em><u>16</u></em> . . . . Yes !  That works !       yay !

For the other one, I constructed tables of values for 2^x and (4x)
in a spread sheet, then graphed them, and looked for the point
where the graphs of the two expressions cross.

The point is near, but not exactly,         <em>x = 0.30990693...

</em>
If there's a way to find an analytical expression for the value, it must involve
some esoteric kind of math operations that I didn't learn in high school or
engineering school, and which has thus far eluded me during my lengthy
residency in the college of hard knocks.<em> </em> If anybody out there has it, I'm
waiting with all ears.<em>

</em>
7 0
2 years ago
Read 2 more answers
HELP<br> Given: ABCD is a parallelogram and AC bisects BD.<br> Prove: AC bisects
34kurt

2) ABCD is a rhombus (a parallelogram with perpendicular diagonals is a rhombus)

3) \overline{AC} bisects \angle BCD (diagonals of a rhombus bisect the angles from which they are drawn)

8 0
2 years ago
Other questions:
  • Cell phone company X charges $15 for 120 minutes.Cell phone Company Y charges $25.95 for 300minutes.Which company has the lowest
    13·1 answer
  • If ∠o = 125°, what does ∠z equal in this figure? <br><br>    A. 180°B. 35°C. 55°D. 125°
    11·1 answer
  • Paul can choose to be paid $50 for a job or he can be paid $12.50 per hour Under what circumstances should he choose the hourly
    11·1 answer
  • The standard form of the equation of a parabola is x = y2 - 4y + 20.
    5·2 answers
  • Help what’s is the Value of x !!!!!!!
    14·1 answer
  • two bags contain marbles. Bag A contains 112 marbles, and bag B contains 140 marbles.What percent fewer marbles does Bag A than
    8·2 answers
  • A bacteria culture begins with 13 bacteria that triple in amount at the end of every hour. How many bacteria exist in the cultur
    9·1 answer
  • I need help please I think the answer is 9 but I'm not sure​
    5·1 answer
  • X + 5 is a factor of f(x) = x ^ 3 - 2x ^ 2 - 23x + 60 to factor f(x) completely.
    10·1 answer
  • A grocery store has salmon fillets on sale for $8.30 per pound. Mrs.patrolia buys
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!