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
Phantasy [73]
3 years ago
15

How do I get to the answer? (3 x n) + 4 = 32/2 What is the value of n?

Mathematics
1 answer:
charle [14.2K]3 years ago
3 0
If you simplify what's in the bracket, you get 3n

=(3n)+4=32/2
=3n+4= 32/2(here we can either crossmultiply or equate)
3n+4-4=32/2-4(subtract 4 from both sides)
3n=32/2-4
3n=24/2
3n=12
3n=12(divide both sides by the coefficient of the unknown)
3n/3=12/3
n=4
You might be interested in
In a lab, a scientist is growing bacteria for a study. The scientist begins with a bacteria
Diano4ka-milaya [45]

Answer:

The answer is below

Step-by-step explanation:

The growth of the bacteria is in the form of an exponential growth. It is given by the formula:

P(t)=ae^{rt}\\\\where\ t\ is\  the\ number\ of \ hours, P(t)\ is\ the \ population\ at\ t\ hours\\\and\ a=population\ at\ start

At 2 hours, the population is 62 cells, hence:

P(2)=ae^{2r}\\\\62=ae^{2r}\ \ .\ \ .\ \ .\ (1)

After another 2 hours (4 hours), the population is 1 million:

P(4)=ae^{4r}\\\\1000000=ae^{4r}\ \ .\ \ .\ \ .\ (2)\\\\Divide \ equation\ 2\ by\ equation\ 1:\\\\\frac{1000000}{62}=\frac{ae^{4r}}{ae^{2r}} \\\\16129=e^{2r}\\\\ln(e^{2r})=ln(16129)\\\\2r=9.688\\\\r=4.844

Put r = 4.844 in equation 1

62=ae^{2*4.844}\\\\62=16129a\\\\a=0.003844

P(t)=0.003844e^{4.844t}\\\\at \ start,t=0\\\\P(0)=0.003844

4 0
3 years ago
Hi! Can you help me answer this?
Free_Kalibri [48]

Answer:

C'(x)=-\frac{148}{x^2}

R'(x)=-0.06

Step-by-step explanation:

Marginal average Cost function:

\frac{d}{dx}(\frac{148+6.3x}{x})=-\frac{148}{x^2}

Marginal average Revenue function:

\frac{d}{dx}(\frac{3x-0.06x}{x})=-0.06

6 0
3 years ago
Read 2 more answers
d) The front of the stage, side C, is 50 feet long. A 40-foot rope runs along the side of square B. A 30-foot rope runs along th
34kurt
Yes, this is a right triangle!

The ratio is identifiable as a 3:4:5 triangle, one of the ratios to tell if a triangle is a right triangle
4 0
3 years ago
Can someone please explain? lol
leva [86]

Answer:

  • 10.235 in²
  • 225 cm²

Step-by-step explanation:

The area of a triangle is half the product of its base and height.

  A = 1/2bh

<h3>a)</h3>

  A = 1/2(2.3 in)(8.9 in) = 10.235 in²

__

<h3>b)</h3>

  A = 1/2(15 cm)(30 cm) = 225 cm²

4 0
2 years ago
Simplify each expression. (y + 22) + 3
katen-ka-za [31]

To simplify, remove the parentheses and combine like terms:

( y + 22) + 3

Y + 22 + 3

Answer: Y + 25

3 0
3 years ago
Other questions:
  • Select all the equations where n=6n=6n, equals, 6 is a solution.
    13·1 answer
  • In 2014 a toy store sold 11 839 stuffed animals In 2015 the toy store sold 24250 more stuffed animals than 2014. The toy store s
    15·2 answers
  • shelley spent 17 minutes washing the dishes. she spent 38 minute cleaning her room. Explain how can use mental math to find how
    5·1 answer
  • What is 300 million in scientific notation
    13·1 answer
  • If a hose is filling a swimming pool at a rate of 20 liters per minute, how long will it take to fill the 3,600-gallon pool?
    11·1 answer
  • Which choice is right
    6·1 answer
  • What should be subtracted from -8xy + 2x^2 + 3y^2 to get x^2 + 2
    12·1 answer
  • Evaluate the expression when y=-7
    5·1 answer
  • The scale of a map is given as 1 : 20000000. Two cities are 6 cm apart on the map. Find the actual distance between them.
    9·1 answer
  • Help ill give brainlest pls
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!