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
ki77a [65]
3 years ago
14

What is 2x + 5 = 15 - (-49) x 5

Mathematics
2 answers:
enyata [817]3 years ago
5 0
2x + 5 = 15 - (-49) x 5 
combine like terms 

2x + 5 = 320 
subtract 5 from each side 

2x = 315
divide by 2 on each side

x = 157.5
nikklg [1K]3 years ago
3 0
So, you do -49 * 5 first because multiplication is before addition, which is -245. 
15 - (-245) turns into addition, so the right side of the equation is 260. 

Move the 5 over. 260-5 = 255

2x = 255, so x =255/2 or 127.5
You might be interested in
The point P(x, y) lies on the terminal side of an angle mc014-1.jpg = –60° in standard position. What are the signs of the value
madreJ [45]
<span>The sign value for x is positive and for y is negative. In standard position, the x point is at the origin, so the value will be 0. The terminal side is the line that moves to create the angle. At -60 degrees, the terminal side will be in the minus side of the y axis.</span>
3 0
3 years ago
Read 2 more answers
The probability density function shown models the amount of rainfall per year for a certain location. If the area of each square
harkovskaia [24]

Answer:

0.45

Step-by-step explanation:

Hope this helps

Correct me if this is wrong

8 0
3 years ago
Given the function f(x) = 4(2)x, Section A is from x = 1 to x = 2 and Section B is from x = 3 to x = 4.
Dmitry [639]

Answer:

Step-by-step explanation:

I'm sure you want your functions to appear as perfectly formed as possible so that others can help you.  f(x) = 4(2)x should be written with the " ^ " sign to denote exponentation:  f(x) = 4(2)^x

                                                                                      f(b) - f(a)

The formula for "average rate of change" is a.r.c. = --------------

                                                                                           b - a

                                    change in function value

This is equivalent to  ---------------------------------------

                                            change in x value

For Section A:  x changes from 1 to 2 and the function changes from 4(2)^1 to  4(2)^2:  8 to 16.  Thus, "change in function value" is 8 for a 1-unit change in x from 1 to 2.  Thus, in this Section, the a.r.c. is:

                 8

               ------ = 8 units    (Section A)

                  1

Section B:  x changes from 3 to 4, a net change of 1 unit:  f(x) changes from

4(2)^3 to 4(2)^4, or 32 to 256, a net change of 224 units.  Thus, the a.r.c. is

        224 units

      ----------------- = 224 units (Section B)

            1 unit

The a.r.c for Section B is 28 times greater than the a.r.c. for Section A.

This change in outcome is so great because the function f(x) is an exponential function; as x increases in unit steps, the function increases much faster (we say "exponentially").

7 0
4 years ago
What is 4/3 divided by 5/3
Deffense [45]
4/5 because if you divide it would be 12/15 so I simplified
8 0
4 years ago
Read 2 more answers
valerie has 10 Video games. 7 of her video games are racing games. what is valerie's racing games written as a decimal?​
svet-max [94.6K]

Answer:

7/10.

Step-by-step explanation:

If theres a total of 10 games and 7 out of the 10 are racing games, it means that 7/10 of the games are racing games.

6 0
3 years ago
Read 2 more answers
Other questions:
  • How many years would it take Jim to earn interest equal to half of his original principal at 10% simple interest?
    13·1 answer
  • Explain what a finite sequence might refer to.
    6·1 answer
  • Please Help. I’m confused. I will give Brainliest Answer.
    15·1 answer
  • A bag contains 9 marbles. 3 are red, 4 are blue and 2 are yellow. What is the probability that you randomly choose a red marble
    13·1 answer
  • 9. Choose the correct solution and graph for the inequality.​
    5·1 answer
  • Mary bought 4 small cookies for 40 cents each and 2 large cookies for 90 cents each how much did she spend all together
    5·1 answer
  • F(x)= x^2-6x+5 Plot the x-intercept(s), y-intercept, vertex, and axis of symmetry for the function.
    13·1 answer
  • PLZZ HELP ME!!!!!! PLZ, I will mark brainliest!!!
    14·1 answer
  • I will give branliest if you answer all four questions!
    14·2 answers
  • Calculate the area and the circumference of the circle
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!