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
Serga [27]
4 years ago
8

Hayley begins solving this problem by combining like terms. 3x + 5x = 10 Which problem requires the same strategy (combining lik

e terms)? A) 5x=20 B) 3(x + 5) = 20 C) x ÷ 4= 30 D) 3x - 2x = 10
Mathematics
2 answers:
Tamiku [17]4 years ago
6 0
D) 3x - 2x = 10 is the answer to this equation 
Alexxx [7]4 years ago
4 0

Answer:

D) 3x - 2x = 10

Explanation:

To combine like terms, you add or subtract terms that have the same variables and exponents.  In the problem we are given, 3x and 5x are like terms; we would add them together and then continue solving.

In choice A, there are no like terms to combine.

In choice B, we would use the distributive property; after that, there are no like terms to combine.

In choice C, we would cancel the 4; there are no like terms to combine.

Choice D has two like terms, 3x and 2x.  We would subtract them and then continue solving.

You might be interested in
A parabola passes through the points (–5, –10) and (5, –10), and the vertex is located at (0, 0). Find the equation of the parab
vitfil [10]
The equation of the parabola is -0.4x^2
8 0
3 years ago
Find the coordinates of the missing endpoint if M is the midpoint of DF <br> F(2,9) M(-1,6)
Hunter-Best [27]

Answer:

(-4,3)

Step-by-step explanation:

6 0
3 years ago
If 6 men can do a piece of work in 14 days, how many men are needed to do the work in 21days?
Ivenika [448]
Total work amount
6 men * 14 days
84 men days

If it is done within 21 days, need x men
84 men days = x men * 21 days
x = 84/21 men
x = 4 men
4 0
3 years ago
Find the value of x.<br><br><br> A. 4.3<br> B. 2.7<br> C. 11.6<br> D. 13.9
kakasveta [241]

Answer:

<h2><u>[D] 13.9</u></h2>

Explanation:

  • <em>Pythagorean theorem: a² + b² = c²</em>
  • <em>Solve for hypotenuse (side x) using: c = √a² + b²</em>

12.8² + 5.3² = 191.93

√191.93

= 13.8538803229

<em>Round the answer</em>

13.9

6 0
3 years ago
PLEASE HELP<br><br> Find the surface area of the triangular prism.
ASHA 777 [7]

Answer:

139

Step-by-step explanation:

First, find all the faces that you must find the areas of. In this case, you need to find the areas of two triangles and three rectangles.

In this triangular prism, the base is one triangle. If the area of the base is 7.75, we can assume that that holds true for both bases, and multiply 7.75 by 2 in order to find the area of both triangles.

Now find the area of each of the three rectangles by multiplying their individual heights and bases by each other. You should get 38, 47.5, and 38 as the areas of the rectangles.

Now add all the individual area's together. (They're bolded for clarity).

4 0
3 years ago
Other questions:
  • Evaluate 5/3
    6·2 answers
  • A vertical line passes through the point (–3, 5). Which point is also on this line?
    7·1 answer
  • Solve for n q= 2n+2w
    11·1 answer
  • Dedrick received $43 from his last birthday that he added to his piggy- bank already containing $52.60. He emptied it out so tha
    9·1 answer
  • Use the properties you learned to show why (a+b)+c is equivalent to b+(a+c)
    6·1 answer
  • Change the percent to a decimal. 0.4% =
    7·2 answers
  • PLEASEEEE ANSWER ASAP
    13·1 answer
  • A teacher can grade 25 papers in 4 hours. How many papers can he grade in 6 hours?
    15·2 answers
  • In an auditorium 1/6 of the students are 5th graders,1/3 are fourth graders, and 1/4 of the remaining students are second grader
    6·2 answers
  • Evaluate each expression.<br> 8/7 + 4/7
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!