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
noname [10]
2 years ago
15

Here is my question ​

Mathematics
1 answer:
arsen [322]2 years ago
5 0

Answer:

A. 2[24÷ (4+4)]

Step-by-step explanation:

Hope this helps :)

You might be interested in
What is the electrical charge If you have 10 protons and 10 neutrons
Ganezh [65]

Answer:

Step-by-step explanation:

Charge on atom is due to electron

Electron have negative charge while proton have positive charge and neutron have no charge. If there are 10 proton (10 positive charge)

8 0
2 years ago
6. A tank contains 100-gallon of pure water. At time t = 0, a solution containing 2 lb of salt per gallon flows into the tank at
SOVA2 [1]

Answer:

The answer is below

Step-by-step explanation:

Let Q represent the amount of salt in the tank at time t.

\frac{dQ}{dt}= flow\ in - flow\ out\\ \\flow\ in=3\ gal/min*2\ lb/gal=6\ lb/min\\\\net\ gain\ in\ tank\ volume=3-4=-1, henceflow\ out= \frac{4Q}{100-t} \\\\\frac{dQ}{dt}= 6-\frac{4Q}{100-t} \\\\\frac{dQ}{dt}+ \frac{4Q}{100-t}=6\\\\The \ integrating\ factor\ is:\\\\IF=e^{\int\limits {\frac{4}{100-t} } \, dt }=e^{-4\int\limits {\frac{-1}{100-t}}=e^{-4ln(100-t)}=(100-t)^{-4}}\\\\Multiplying\ through  \ by\ IF: \\\\(100-t)^{-4}\frac{dQ}{dt}+ (100-t)^{-4}\frac{4Q}{100-t}=6(100-t)^{-4}\\\\

Integrating:\\\\A(100-t)^{-4}=-2(100-t)^{-3}+c\\\\A=-2(100-t)+\frac{c}{(100-t)^{-4}} \\\\at, t=0,A=0\\\\0=-2(100-0)+\frac{c}{(100-0)^{-4}}\\\\c=0.02\\\\A=-2(100-t)+\frac{0.02}{(100-t)^{-4}}

7 0
2 years ago
Find all solutions to 6x^4+13x^3–71x^2+67x=15​
yarga [219]

Answer:

x = 1 or x =  3  / 2  or x = −5 or x =  1  / 3

Refer the attachment for steps

Hope it helps

Please mark me as the brainliest

Thank you

3 0
3 years ago
Please help me with this problem​
Rom4ik [11]

y=x^2 + x - 2

x + y = 1

Replace y in the second equation:

x + x^2 + x -2 = 1

Simplify:

x^2 + 2x -2 = 1

Subtract 1 from both sides:

x^2 + 2x -3 = 0

Factor:

(x-1) (x+3) = 0

Solve for both x's:

x = 1 and x = -3

Now replace x in the second equation and solve for y using both x values:

1 + y = 1, y = 0

-3 + y = 1, y = 4

Now you have (1,0) and (-3,4) as solutions for (x,y)

XY = x times y:

1 x 0 = 0

-3 x 4 = -12

The answer would be -12

6 0
2 years ago
164 is 55% of what number?<br><br> Please somebody help me
monitta
This is how you solve it; but first of all convert the percent into a decimal;55%= 0.55

0.55x = 164 (divide by 0.55 on both sides)
x = 164/0.55 
x = 298.18 (rounded to the nearest hundredth)
so 164 is 55% of 298.18(rounded)
8 0
3 years ago
Other questions:
  • Help Plsss , Thanks
    7·1 answer
  • in 1975 there were 130,000 tennis courts in the united states this number increased by 69% from 1975 to 1985 find the number of
    5·1 answer
  • Slide separated her pictures into 3 piles.Each pile contained 9 pictures.How many pictures did she have in all? Write and solve
    9·2 answers
  • Carl has 2 cups of flour to make cookies how many batches of cookies can you make of each batch uses 1/3 cup carl has 2 cups of
    9·1 answer
  • Tell answer of the question and show work
    6·1 answer
  • If the coordinates of a point p(m-3,-6)=p(-7,-6), then find the value of m​
    12·1 answer
  • 18x + 13y where x = 14 and y = 12
    15·2 answers
  • The baseball team is selling snacks at a game for a fundraiser. They purchased pretzels, chips, and candy bars to sell. They spe
    6·1 answer
  • 3ab<br> 1. monomial<br> 2. binomial<br> 3. trinomial<br> 4. none of these
    14·1 answer
  • Im stuck help i only have 1 hour for this test
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!