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
Andrews [41]
2 years ago
13

Sanjay and his friends are doing a physics lab on air pressure. First, they fill a balloon with air until it reaches a pressure

of 300 kilopascals. Then they poke the balloon and measure its pressure over time. According to their measurements, the balloon appears to be losing pressure at a rate of 15% every hour. If this trend continues, what will the pressure be in 8 hours?
If necessary, round your answer to the nearest tenth
Mathematics
1 answer:
KatRina [158]2 years ago
4 0
Answer: After 8 hours the pressure will be at -60?

Explanation: not sure how the balloon can reach -60 kilopascals but 15% of 300 is 45 and 45 x 8(hours) is 360. 300 - 360 is -60
You might be interested in
What is the difference in simplest form? <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bn%5E2%2B3n%2B2%7D%7Bn%5E2%2B6n%2B8%7D-%5
Paha777 [63]
\bf \cfrac{n^2+3n+2}{n^2+6n+8}-\cfrac{2n}{n+4}\implies \cfrac{n^2+3n+21}{(n+4)(n+2)}-\cfrac{2n}{n+4}&#10;\\\\\\&#10;\textit{so our LCD will just be (n+4)(n+2)}&#10;\\\\\\&#10;\cfrac{n^2+3n+2~~~~-~~~~(n+2)(2n)}{(n+4)(n+2)}&#10;\\\\\\&#10;\cfrac{n^2+3n+2~~~~-~~~~(2n^2+4n)}{(n+4)(n+2)}&#10;\\\\\\&#10;\cfrac{n^2+3n+2~~~~-~~~~2n^2-4n}{(n+4)(n+2)}&#10;\implies &#10;\cfrac{-n^2-n+2}{(n+4)(n+2)}&#10;\\\\\\&#10;\cfrac{-(n^2+n-2)}{(n+4)(n+2)}\implies \cfrac{-\underline{(n+2)}(n-1)}{(n+4)\underline{(n+2)}}\implies \cfrac{-(n-1)}{n+4}\implies \cfrac{1+n}{n+4}
3 0
3 years ago
Pleaseeeee helppppp
IRINA_888 [86]

Answer:

  (a)  (6, 2)

Step-by-step explanation:

The system of equations has one of them in y= form, so it lends itself to solution by substitution.

__

Using the equation for y to substitute into the first equation, we have ...

  2x -y = 10

  2x -(-1/2x +5) = 10 . . . . . substitute for y

  2x +1/2x -5 = 10 . . . . . eliminate parentheses

  5/2x = 15 . . . . . . . . . add 5, collect terms

  x = 6 . . . . . . . . . . . multiply by 2/5

Using the equation for y, we have ...

  y = -1/2(6) +5 = -3 +5

  y = 2

The solution is (x, y) = (6, 2).

3 0
2 years ago
Solve the equation.<br> 4+ 14 = – 2(7x-9)
Tamiku [17]

Answer:

-63

Step-by-step explanation:

4 0
3 years ago
EVALUATE !!!! ILL GIVE YOU BRAINLIST HAVE TO GET IT RIGHT !!!!
elena-s [515]

Answer:

<h2>12</h2>

Step-by-step explanation:

nxy\div m\\\\n =3/4\\x =8\\y =6\\m=3\\\\\frac{3}{4} \times 8 \times 6 \div 3\\\\\mathrm{Divide\:the\:numbers:}\:6\div \:3=2\\=\frac{3}{4}\times \:8\times \:2\\\\\mathrm{Convert\:element\:to\:fraction}:\quad \:8=\frac{8}{1}\\=2\times \frac{3}{4}\times \frac{8}{1}\\\\\mathrm{Convert\:element\:to\:fraction}:\quad \:2=\frac{2}{1}\\=\frac{3}{4}\times \frac{8}{1}\times \frac{2}{1}\\\\Multiply\:fractions\\=\frac{3\times \:8\times \:2}{4\times \:1\times \:1}\\\\=\frac{48}{4}\\\\Simplify\\=12

8 0
3 years ago
Find the lengths and determine the measure of the missing angel (x)
inysia [295]
B= 60 
To find b you must do the pythagorean theorem because it is a right triangle
65^2 - 25^2=b^2
3600=b^2
60=b

x= 18 
To find x you must know that a triangle is made up of 180 degrees.
x= 180-(72+90)
x=180-162
x=18

hope this helped :)
3 0
3 years ago
Other questions:
  • What is the surface area of the triangular prism?<br> A135<br> B150<br> C120<br> D115
    8·1 answer
  • In the diagram below, what needs to be labeled in order to prove triangle AHL and triangle EML are congruent by the SSS postulat
    15·1 answer
  • Serious answers only please!!!!!!!!!!
    9·1 answer
  • Which of the following is equal to g(x)?
    5·1 answer
  • Lan make 60 cakes. he gives 1/4 of the cakes to Helen. he gives 20 of the 60 cakes to sue. what fraction of the 60 cakes does he
    10·2 answers
  • Which answer does not correctly describe the graph of y = 5x + 12?
    9·1 answer
  • Please help! And 20 points! :3
    10·1 answer
  • Solve the triangle given that a=19 b=16, c=11.
    11·1 answer
  • 1) 6 hats cost $67.50<br> What's the cost per hat?
    7·2 answers
  • A line segment passes through the points (2,6) and
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!