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
sladkih [1.3K]
3 years ago
13

2. Solve each given equation and show your work. Tell whether each equation has one solution, an infinite number of solutions, o

r no solution. Explain your answers.
(a)2x+4(x-1)=2+4x
(b)25-x=15-(3x +10)
(c)4x=2x+2x+5(x-x)
Mathematics
2 answers:
katrin2010 [14]3 years ago
8 0
A is unsolvable because 4=0.
B can be solved.
C is infinite
Reil [10]3 years ago
4 0

A) there are infinite number of solutions because if you replace x with 1 and solve the equation 6 = 6

B) There would be no solutions. Say, x = 1 then if you solve the equation it would be 24=2

C)  There would be infinite number of solutions because when you replace x with 1 and sovle the equation you will get 4 = 4

You might be interested in
Which characteristics best describe a right scalene triangle? I. Two sides meet at a 90° angle. II. Two side lengths are equal.
Alisiya [41]

Answer:

1

1V

Step-by-step explanation:

8 0
2 years ago
John took 3 exams so far this semester. He scored 45, 65 and 80 on those 3 exams . What score does he need on the fourth exam to
Olegator [25]

Answer:

He \: needs \: to \: score \: 90 \: or \: more

Step-by-step explanation:

\frac{x + 45 + 65 + 80}{4}  \geqslant 70\Leftrightarrow x + 190 \geqslant 280\Leftrightarrow x \geqslant 90

3 0
3 years ago
Enter an equation that can be used to solve this problem, where x represents the number of hours that Roberto had been traveling
nalin [4]
45mph x35 mph = 1 hour
6 0
3 years ago
Simplify -3 to the exponent of 4
WITCHER [35]
<h2><u>Answer</u>:</h2>

81

<h2><u>Step-by-step explanation</u>:</h2>

( - 3)^{4}  \\  \\   - 3 \times  - 3 \times  - 3 \times  - 3 \\  \\ 9 \times 9 \\  \\ 81

Hence answer is 81.

8 0
2 years ago
A tank can be filled by one pump in 50 minutes and by another in 60 minutes. A third pump can drain the tank in 75 minutes. If a
Deffense [45]

let's label each pump A, B, and C, just for convenience. A fills the tank by 1/50 every minute, B fills the tank by 1/60 every minute, and C drains it by 1/75 every minute. Now we can put them all into one function: t(1/50 + 1/60 - 1/75) = 1, where t = our time in minutes and 1 = the tank being full.

next, we solve for t: t = 300/7 minutes, or approximately 42.86 minutes.

4 0
3 years ago
Other questions:
  • Find the value of each variable
    10·2 answers
  • Really need help...
    12·1 answer
  • Probability of 1 number when 100 numbers are available
    10·1 answer
  • Please Help and show work. Thank You!
    8·2 answers
  • 0 A public beach in Arkansas charges non- residents $12 per day for a fishing license and $3.50 per day for live bait. Arkansas
    6·1 answer
  • What is the trigonometric ratio for sin Z ?
    14·1 answer
  • Wrote an equation in slope intercept form of a line tbag passes through (5,-2) and is parallel to the graph of y=-3x-7
    9·1 answer
  • A customer bought a soda
    14·1 answer
  • The first picture is the graph (already answered) and the second is the next
    6·2 answers
  • 1)Karen was in a trivia contest in got 38 of the 40 questions correct .what percent of the question is she get wrong?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!