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
Montano1993 [528]
3 years ago
7

5(3x + 4 – x) A. 14x + 4 B. 10x + 20 C. 10x + 4 D. 14x + 20

Mathematics
2 answers:
prohojiy [21]3 years ago
7 0
5(3x + 4 - x)
Distribute.
15x + 20 - x
Add like terms.
14x + 20
Answer is D.
Hope I helped:)
Brrunno [24]3 years ago
4 0
Letter B is the answer, if you distribute and the you combine like terms, you get 10x+20
You might be interested in
Tina is finding the quotient of. Is she correct? If not, what changes should be made?
Mice21 [21]

For this case, we must find the quotient of

(15x ^ 3 + 12x ^ 2-9x) divided by3x, to verify if Tina was correct.

So:

\frac {15x ^ 3 + 12x ^ 2-9x} {3x} =\\\frac {15x ^ 3} {3x} + \frac {12x ^ 2} {3x} - \frac {9x} {3x} =\\5x ^ 2 + 4x-3

So, Tina was wrong, she had to divide by 3x.

Answer:

Option B


5 0
3 years ago
What is the value of x in the equation 3x-4y=65 when y =4
Dovator [93]
3x - 4(4) = 65

First, simplify 4 × 4 to get 16. / Your problem should look like: 3x - 16 = 65
Second, add 16 to both sides. / Your problem should look like: 3x = 65 + 16
Third, simplify 65 + 16 to 81. / Your problem should look like: 3x = 81
Fourth, divide both sides by 3. / Your problem should look like: x = \frac{81}{3}
Fifth, simplify \frac{81}{3} to 27. / Your problem should look like: x = 27

Answer: x = 27

5 0
3 years ago
The radius of a cylinder is 5" and the lateral area is 70 pi sq. In. Find the length in altitude
aev [14]
We are to solve for the value of the altitude of the given cylinder which has a radius of 5 feet and a lateral area of 70pi ft². To solve this we should recall that the formula in solving the lateral area of a cylinder is Lateral Area = 2pi*r*h. The solution is shown below:
r is equal to 5 ft
lateral area = 70pi
Solving for h, we have:
70pi = 2pi*5*h
70pi / 2pi = 5h
35 = 5h
divide both sides by 5, we have:
35/5 = 5h/5
7 = h

The answer for the length of the altitude is 7 feet.
8 0
3 years ago
Eliana drove her car and used 9 liters of fuel. She wants to know how many kilometers she can drive on 22 liters of fuel. She as
denpristay [2]

Answer:

9 liters of fuel covered   81 km

1 liter of fuel would have covered  81/9  km  = 9 km

22 liters of fuel would then cover   =   22 * 9  =  198 km.

Step-by-step explanation:

5 0
3 years ago
Theresa Morgan, a chemist, has a 30% hydrochloric acid solution and a 50% hydrochloric acid solution. How many liters of each sh
Bogdan [553]
Let x represent the number of liters of 50% acid Theresa puts into the mix. The the number of liters of 30% acid will be (420-x). The total amount of acid in the final solution will be ...
  0.50x + 0.30(420-x) = 0.45(420)
  0.20x + 126 = 189 . . . . . . . . . . . . . . . simplify
  0.20x = 63 . . . . . . . . . . . . . . . . . . . . . subtract 126
  x = 63/0.20 = 315 . . . . . . . . . . . . . . . liters of 50% solution
  (420-x) = 420-315 = 105 . . . . . . . . . liters of 30% solution

Theresa should mix ...
  105 liters of 30% solution
  315 liters of 50% solution
7 0
4 years ago
Other questions:
  • Phil baked two kinds of pies. Each pie pan was the same size. He served 1/2 of the blueberry pie. He served 1/4 of the apple pie
    8·2 answers
  • How do i find x? im doing question number 2
    10·1 answer
  • What is the retail price of a couch at a furniture store that has a wholesale price of $115 and is marked up by 75 percent? $86.
    14·2 answers
  • In the figure below, segment AC is congruent to segment AB: Which statement is used to prove that angle ABD is congruent to angl
    9·1 answer
  • If you are at school, then you are working hard.
    13·1 answer
  • drew bought a chemistry book for $30. later that book was marked down by 20%. what was the cost of the book with the discount?
    13·1 answer
  • If the nth term of a sequence is<br> 28-3n what is the 7th term?
    5·2 answers
  • What is 1+1??????????
    13·1 answer
  • Find the solution to the system. Write your solution as an ordered pair (x,y) with no spaces, no solution, or infinitely many. 3
    15·1 answer
  • At the last basketball game ,12 out of the first 48 people who entered the stands were wearing a coat. if this sample is represe
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!