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
mrs_skeptik [129]
3 years ago
9

PLEASE HELP AHHH I-. I need help lol

Mathematics
2 answers:
tino4ka555 [31]3 years ago
8 0

Answer:

3

Step-by-step explanation:

Pie3 years ago
4 0

Answer:

264

Step-by-step explanation:

do 20 mulitplyed by 30 then subtracted it by 336

You might be interested in
DE is the midpoint mid segment of ABC . How would i determine the value of X
mihalych1998 [28]
I believe x is half of 126
8 0
3 years ago
Read 2 more answers
You are buying potato chips at the grocery store. You have a manufacturer’s coupon for $1.00 off and the store is offering 20% o
valkas [14]
First find 10% then double subtract $1 and you'll get a final answer
6 0
3 years ago
Solve. -7+ 11-(-3) =<br> what is this need answer asap​
swat32
<h2>fock you dumb hooman.......</h2>
7 0
3 years ago
If 3,000 bacteria, with a growth constant (k) of 2.8 per hour, are present at the beginning of an experiment, in how many hours
Ivenika [448]

Given:

Initial number of bacteria = 3000

With a growth constant (k) of 2.8 per hour.

To find:

The number of hours it will take to be 15,000 bacteria.

Solution:

Let P(t) be the number of bacteria after t number of hours.

The exponential growth model (continuously) is:

P(t)=P_0e^{kt}

Where, P_0 is the initial value, k is the growth constant and t is the number of years.

Putting P(t)=15000,P_0=3000, k=2.8 in the above formula, we get

15000=3000e^{2.8t}

\dfrac{15000}{3000}=e^{2.8t}

5=e^{2.8t}

Taking ln on both sides, we get

\ln 5=\ln e^{2.8t}

1.609438=2.8t                  [\because \ln e^x=x]

\dfrac{1.609438}{2.8}=t

0.574799=t

t\approx 0.575

Therefore, the number of bacteria will be 15,000 after 0.575 hours.

4 0
2 years ago
Kevin is 4 times as old as Daniel and is also 6 years older than Daniel
MAXImum [283]

Answer:

Part a) Daniel's age is 2 years

Part b) Kevin's age is 8 years

Step-by-step explanation:

<u><em>The question is </em></u>

Part a) How old is Daniel?

Part b) How old is Kevin?

Let

x ----> Kevin's age

y ----> Daniel's age

we know that

x=4y-----> equation A

x=y+6 ----> equation B

Equate equation A and equation B

4y=y+6

solve for y

4y-y=6

3y=6

y=2

therefore

Daniel's age is 2 years

<em>Find the value of x</em>

substitute the value of y in any of the two equations

x=4(2)=8\ years

x=2+6=8\ years

therefore

Kevin's age is 8 years

6 0
3 years ago
Other questions:
  • What is the y-intercept of y+4=-1/4(x+2)
    6·2 answers
  • Select the three models that represent 35%.
    8·1 answer
  • What is the scale of the map if 1 cm on the map represents 20km in reallife
    15·1 answer
  • A saleswoman earns 5% commission on all the merchandise that she sells. Last month she sold $9000 worth of merchandise. How much
    12·1 answer
  • Find the sum of 5x + 20 and the opposite of 20. Write an equivalent expression in standard form. Do not include any spaces in yo
    5·1 answer
  • Can someone plz tell me the answer
    8·1 answer
  • The perimeter of a square is 75 cm what is the length of one side of the square​
    5·1 answer
  • I need help asap!! Will mark the brainliest of correct!
    9·1 answer
  • Find the slope. Pls help I will give brainliest
    10·2 answers
  • vijay is building a new rectangular enclosure in his backyard for his chickens. he has 404040 feet of fencing material and he wa
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!