Please help me i need an answer

Mathematics

2 answers:

ivanzaharov [21]3 years ago

8 0

Let x be the number.
"When 2/3 is added to a certain number" so we get x + 2/3
"The sum is 3 greater than twice that number" so it's 3 + 2x

So 2/3 + x = 3 + 2x
Subtract 2/3 from both sides:
2/3 + x = 3 + 2x
2/3 - 2/3 + x = 3 - 2/3 + 2x
x = 7/3 + 2x
Subtract 2x from both sides
x - 2x = 7/3 + 2x - 2x
-x = 7/3
Multiply by (-1) to get the positive x
-x = 7/3
x = -7/3

Hope this helps! :D

prohojiy [21]3 years ago

3 0

Let the number be n
Part A- 2/3 + n = 2n+3
Part B- n= 2/3 -3
n= 2-9 / 3
n= -7/3 =-2.33

You might be interested in

Evaluate the following: (½)(10) −(−12) −25

mr Goodwill [35]

Answer:

-8

Step-by-step explanation:

1/2 times 10 is 5. and a negative times a negative is a positive, so you have a positive 12, which becomes 5+12-25, which is -8

7 0

3 years ago

Solve for a. Assume that a, b, c are not zero.<br> abc=c

inn [45]

It is C because a and b are zeros

6 0

3 years ago

Read 2 more answers

Let f(x)=241+3e−1.3x . What is the point of maximum growth rate for the logistic function f(x) ? Round your answer to the neares

FromTheMoon [43]

Answer:

The point of maximum growth is at x=0.82

Step-by-step explanation:

Given a logistic function

$f(x)=\frac{24}{1+e^{-1.3x}}$

we have to find the point of maximum growth rate for the logistic function f(x).

From the graph we can see that the carrying capacity or the maximum value of logistic function f(x) is 24 and the point of maximum growth is at $y=\frac{24}{2}$ i.e between 0 to 12