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
Nat2105 [25]
4 years ago
12

1. how many solutions does -3x + 32 - 7x = -2(5x + 10) have?

Mathematics
2 answers:
Eva8 [605]4 years ago
7 0

Answer:

1.) none

2.) 46/7

Step-by-step explanation:

andriy [413]4 years ago
6 0

Answer:

Solve each equation for x

1.

-3x + 32 - 7x = -2(5x + 10)

-3x+32-7x= -2*5x +-2*10       <em>Distribute the -2 on the right</em>

-3x+32-7x= -10x -20

(-3x-7x) +32= -10x-20          <em>Combine like terms </em>

-10x+32=-10x-20

-10x+10x +32= -10x+10x -20      <em>Add 10x to both sides </em>

32=-20

Since this statement is not true, this equation has no solutions.

2.

3(x - 14) +1 = -4x + 5

3*x +3*-14 +1 =-4x+5           <em>Distribute the 3  on the left </em>

3x-42+1= -4x+5

3x-41= -4x+5              <em>Combine like terms </em>

3x+4x-41= -4x+4x+5         <em>Add 4x to both sides </em>

7x-41=5

7x-41+41=5+41              <em>Add 41 to both sides </em>

7x=46

7x/7=46/7                  <em>Divide both sides by 7 </em>

x=46/7

This equation has one solution, 46/7

You might be interested in
Complete the table<br> y=2x²-2<br> x = 0,1,-1,2,-2<br> y= ?
Tasya [4]

Step-by-step explanation:

X- axis interception points of 2x² - 2, x = 0: None

y- axis interception point of 2x²-2, x=0:

Y Intercepts: (0, - 2)

8 0
2 years ago
Round 6.877 to the nearest whole<br> number.
NARA [144]

Answer:

7.000

Step-by-step explanation:

6.877 so its talking about the 8 so its greater than 5 so its 7 or 7.000

3 0
3 years ago
Read 2 more answers
I also need help with this one too
-Dominant- [34]

Answer:

27°

Step-by-step explanation:

angle FDG is a alternate interior angle with angle BDG

4 0
4 years ago
Read 2 more answers
Helen's preferences over cds (c) and sandwiches (s) are given by u(s,
rusak2 [61]
<span>The fact that Helen’s indifference curves touch the axes should immediately make you want to check for a corner point solution. To see the corner point optimum algebraically, notice if there was an interior solution, the tangency condition implies (S + 10)/(C +10) = 3, or S = 3C + 20. Combining this with the budget constraint, 9C + 3S = 30, we find that the optimal number of CDs would be given by 3018â’=Cwhich implies a negative number of CDs. Since it’s impossible to purchase a negative amount of something, our assumption that there was an interior solution must be false. Instead, the optimum will consist of C = 0 and Helen spending all her income on sandwiches: S = 10. Graphically, the corner optimum is reflected in the fact that the slope of the budget line is steeper than that of the indifference curve, even when C = 0. Specifically, note that at (C, S) = (0, 10) we have P C / P S = 3 > MRS C,S = 2. Thus, even at the corner point, the marginal utility per dollar spent on CDs is lower than on sandwiches. However, since she is already at a corner point with C = 0, she cannot give up any more CDs. Therefore the best Helen can do is to spend all her income on sandwiches: ( C , S ) = (0, 10). [Note: At the other corner with S = 0 and C = 3.3, P C / P S = 3 > MRS C,S = 0.75. Thus, Helen would prefer to buy more sandwiches and less CDs, which is of course entirely feasible at this corner point. Thus the S = 0 corner cannot be an optimum]</span>
5 0
3 years ago
Determine if the equations are parallel, perpendicular, or neither
Gala2k [10]

Answer: Perpendicular.

Step-by-step explanation:

If you multiply the slopes together you will get -1:

3 * -\frac{1}{3} = -1

<em>Parallel means they have the same slope, so that is easily ruled out here.</em>

5 0
3 years ago
Other questions:
  • Help. find exterior angle.
    13·1 answer
  • PLEASE HELP !
    14·2 answers
  • PLEASE HELP ME WITH THIS QUESTION NOW
    10·1 answer
  • What is 41/10 as a mixed number?
    15·1 answer
  • The sum of the digits of a certain two-digit number is 7. Reversing its digits increases the number by 9. What is the number?
    13·1 answer
  • Frankie has $40 in his wallet. He decided to buy a pair of earrings for his mom for her birthday. He spent 25% of his money on t
    8·1 answer
  • Why is the product of a rational number and an irrational number Irrational?
    13·2 answers
  • I need help with this please​
    9·2 answers
  • Maisie knows that she needs 3 kg of grass seed to make a rectangular lawn 5 m by 9m.
    12·1 answer
  • 100 EASY POINTS WILL MARK BRAINIEST
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!