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
Sonbull [250]
2 years ago
15

Brian is 8 and his brother is twice his age. How old will his brother be when brian is 11?.

Mathematics
2 answers:
GenaCL600 [577]2 years ago
5 0
If brian is 8 and his brother is twice his age, his brother is 16. His brother is 8 years older so when Brian is 11 he will be 19
ArbitrLikvidat [17]2 years ago
5 0
Twice means multiplying by 2 . So when Brian is 11 his brother will be 22
You might be interested in
Samples of rejuvenated mitochondria are mutated (defective) with probability 0.11. Find the probability you need to examine at l
joja [24]

Answer:

The probability that more than 6 samples are needed to have 2 mutations is P=0.866.

Step-by-step explanation:

This question can be analized with the binomial distribution.

We need to calculate the probability that more of 6 samples are needed to have 2 samples with mutations.

This is equal to the proability of taking 2 samples and getting one mutation or less.

Then we have a binomial distribution with n=6 and p=0.11:

P(X\leq1)=P(0)+P(1)\\\\P(X\leq 1)=(1-p)^6+6p(1-p)^5\\\\P(X\leq 1)=0.89^6+6*0.11*0.89^5=0.497+0.369=0.866

3 0
3 years ago
What is the quadratic formula
natka813 [3]
I can give you an example:
4x^2+2xy-3y^2

it is in the form of :
x^2+2ax+a^2
also :   (x+a)^2 = x^2+2ax+a^2
7 0
4 years ago
A plane descended 922.02 meters in 5.5 minutes.<br> What is the plane's rate of descent?
UkoKoshka [18]
The rate of descent is <em>164.64 meters / minute
</em>
<em />
<em />To get this answer you just divide the total number of meters descended by the total number of minutes passed. 
<em>
</em>
So:<em>

</em>
922.02 ÷ 5.5 = 164.64

I hope this helped!! Have an amazing day! :D
7 0
3 years ago
If five notebooks cost $5.25 , how much would three notebooks cost?
weqwewe [10]
Set it up as a ratio.  $5.25/5 = $1.05 per notebook

Then solve your equation by multiplying the cost by 3.  3 * $1.05 = $3.15
3 0
3 years ago
Can someone please help me please I really need help please answer it correctly
kvv77 [185]

Answer:

<h3>Princeton Florist</h3>

Let the total charge is y, the number of small arrangements is x.

<u>Total charge will be:</u>

  • y = 13x + 47
<h3>Chad's Flowers</h3>

<u>Total charge will be:</u>

  • y = 17x + 35

<u>Since the total charge is same in both shops, we have:</u>

  • 13x + 47 = 17x + 35

<u>Solve for x:</u>

  • 17x - 13x = 47 - 35
  • 4x = 12
  • x = 3

<u>Total cost is:</u>

  • 13*3 + 47 = 39 + 47 = 86

<u>Small arrangements</u> = 3, <u>cost </u>= $86

7 0
3 years ago
Other questions:
  • HELP ME NOW ANYONE!! Picture included!​
    13·1 answer
  • He center of a circle represented by the equation (x + 9)2 + (y − 6)2 = 102 is
    7·2 answers
  • The rug in Alan's room has a area of 18 square feet. He is planning to buy another rug that is twice as long and twice as wide.
    7·1 answer
  • Estimate the volume.<br> A) 19 in3 <br> B) 40 in3 <br> C) 96 in3 <br> D) 144 in3
    15·1 answer
  • What is 5/7 - 2/3 • 15/14
    15·1 answer
  • Simplify the ratio 25:15:10​
    7·2 answers
  • If you like anime comment your favorite
    11·1 answer
  • 1) Loida needs 37 meters of curtain cloth to decorate each window in the house. If there are 8
    12·1 answer
  • Evaluate each expression.<br> 3. |—6| = ? <br><br> Please help
    9·1 answer
  • If a woman making $17 an hour gets 20% raise, she will make an additional 1/10 of her salary an hour.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!