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
gtnhenbr [62]
3 years ago
8

Please Help!!!!!!! Emergency

Mathematics
1 answer:
Stolb23 [73]3 years ago
6 0

Answer:

C

15 + x

Step by step explanation

For Company X, the initial cost is 30 cents  plus 5 cents per minute, so the expression would be 30 + 5x (x would represent minutes.

For Company Y, the initial cost is 15 cents  plus 4 cents per minute, so the expression would be 15 + 4x (x would represent minutes.)

Then subtract the expression of Y from the expression of X to show the difference in value between Y and X.

So, 30 + 5x - (15 +4x)

Distribute the subtraction sign.

30 + 5x - 15 - 4x

Solve across.

15 + x

You might be interested in
Simplify the following expression.( Fraction form)<br><br> 7-5/6 * 7-7/6
Ipatiy [6.2K]

Answer:

1295/36

Step-by-step explanation:

the statement tell us:

(7-(5/6))*(7-(7/6))

we have:

(7-(5/6))=((6*7)-5)/6=(42-5)/6=37/6

and we have:

(7-(7/6))=((6*7)-7)/6=(42-7)/6=35/6

we need multiply both terms:

(37/6)*(35/6)=(37*35)/(6*6)

finally we have

1295/36

5 0
3 years ago
Hector invests $20,000 at age 21. He hopes the investment will be worth $200,000 when he turns 40. If the interest compounds con
KiRa [710]

Answer:

12.12%

Step-by-step explanation:

We have that the formula is given by:

A = p * e ^ (r * t)

From here, we know that A = 200000; p = 20000 and the time we can calculate 40 - 21 = 19

if we replace we have:

200000 = 20000 * e ^ (19 * r)

we must calculate r:

e ^ (19 * r) = 200000/20000

e ^ (19 * r) = 10

19 * r = ln 10

r = ln 10/19

r = 0.1212

In other words, the rate of growth is 12.12%

8 0
3 years ago
Read 2 more answers
What is the solution set of the quadratic equation 8x2 +2x +1 =0?
Sidana [21]
   
\displaystyle\\&#10; 8x^2 +2x +1 =0\\\\&#10;x_{12}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}=\frac{-2\pm \sqrt{2^2-4\cdot 8 \cdot 1}}{2\cdot 8}=\\\\&#10;=\frac{-2\pm \sqrt{4-32}}{16}=\frac{-2\pm \sqrt{-28}}{16}=\frac{-2\pm \sqrt{4\cdot 7\cdot(-1)}}{16}=\\\\&#10;=\frac{-2\pm 2i\sqrt{7}}{16}=\frac{-1\pm i\sqrt{7}}{8}= -\frac{1}{8}\pm  \frac{\sqrt{7}}{8}i\\\\&#10;x_1 =   \boxed{-\frac{1}{8}+  \frac{\sqrt{7}}{8}i}\\\\&#10;x_2 =   \boxed{-\frac{1}{8}-  \frac{\sqrt{7}}{8}i}\\\\&#10;x_1,~x_2~\in \mathbb{C}



4 0
3 years ago
Please help for instant brainliest.
Mnenie [13.5K]

x + y = 7

x - y = 35

and that is your answer

5 0
3 years ago
Read 2 more answers
Write the point slope form of the equation of the line through the given points.
oee [108]

Answer:

\displaystyle y - 3 = -1\frac{1}{5}x\:OR\:y + 3 = -1\frac{1}{5}x - 5

Step-by-step explanation:

First, find the <em>rate of</em><em> </em><em>change</em><em> </em>[<em>slope</em>]:

\displaystyle \frac{-y_1 + y_2}{-x_1 + x_2} = m \\ \frac{3 + 3}{-5 ± 0} = -\frac{6}{5} = -\frac{1}{5}

Then plug these coordinates into the Point-Slope Formula Remember, in this formula, all the negative symbols give the OPPOSITE terms of what they really, so be EXTREMELY CAREFUL inserting the coordinates into the formula with their CORRECT SIGNS. It does not matter which ordered pair you choose:

\displaystyle y - y_1 = m[x - x_1] \\ \\ y - 3 = -1\frac{1}{5}x\:OR\:y + 3 = -1\frac{1}{5}x - 5

I am joyous to assist you anytime.

5 0
3 years ago
Other questions:
  • 12 students share 3 pizzas equally what fraction of the pizza each student gets
    10·1 answer
  • a triangle with 70 and 120 degree angles and an included 10m , is it not a triangle, a unique triangle or more than one triangle
    11·1 answer
  • Divide each of the following numbers by 10. a. 9.48 b. .6 c. 84.5 d. .0024 e. .3678 f. 25
    8·2 answers
  • A phone company offers two monthly charge plans. In Plan A, the customer pays a monthly fee of
    7·2 answers
  • Determine the value(s) for which the rational expression f(x)=(?11x+1)/(?30x^2?25x+5) is undefined. If there's more than one val
    11·1 answer
  • Factorise:<br> (x - 2y)2 - 12(x - 2y) + 32
    14·1 answer
  • 1/5 divided by 3 please! in fraction form!!
    8·1 answer
  • It takes Annie eight hours to travel a distance of 480 miles at this rate how many miles does she travel in 13 hours
    13·1 answer
  • At a football stadium, 20% of the fans in attendance were teenagers. If there were 290 teenagers at the football stadium, what w
    7·2 answers
  • What is the distance betwen (–3, –6) and (–3, 1)
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!