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
Mice21 [21]
3 years ago
13

Joel is twice as old as Kayla in 5 years the sum of their ages will be 55 years what are the ages of two people

Mathematics
2 answers:
stealth61 [152]3 years ago
7 0
Kayla is 15 while joel is 30
Colt1911 [192]3 years ago
6 0
Let J represent Joel
Let K represent Kayla
Joel is twice as old as Kayla
J = 2K
In five years time, the sum of their ages is 55
(J + 5) + (K + 5) = 55
J + K + 10 = 55
J + K = 45
substitute J = 2K
2K + K = 45
3K = 45
K = 15
and J =2K
J = 2 * 15=30
Joel is 30 years old
Kayla is 15 years old
pls mark as brainliest
You might be interested in
Dean Halverson recently read that full-time college students study 20 hours each week. She decides to do a study at her universi
romanna [79]

Answer: The p-value is 0.154.

Step-by-step explanation:

Since we have given that

We claim that

Null hypothesis :

H_0:\mu=20

Alternate hypothesis :

H_1:\mu

Population mean = 20 hours

Sample mean = 18.5 hours

Sample standard deviation = 4.3 hours

Sample size n = 35

So, test statistic would be

z=\dfrac{\bar{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{18.5-20}{\dfrac{4.3}{\sqrt{35}}}\\\\z=\dfrac{-1.5}{0.726}\\\\z=-2.066

So, the  p value would be 0.154.

Hence, the p-value is 0.154.

4 0
4 years ago
Imagine that the rectangle is rotated counterclockwise. Make a conjecture as to which properties of a figure stay the same after
bazaltina [42]
Angles, length, shape
8 0
4 years ago
Read 2 more answers
The graph shows the relationship between mass of hamster food and the number of days it takes Gabin's hamster to eat it. What do
Romashka-Z-Leto [24]

Answer:

Step-by-step explanation:

It’s b

3 0
3 years ago
Read 2 more answers
n oblong box has a volume equal to lwh, where l is the length, w is the width, and h is the height. If the volume is 24 cubic fe
Eddi Din [679]
For this case the volume of the box is given by:
 V = l * w * h
 Where,
 V = 24 feet ^ 3
 Substituting values we have:
 24 = l * w * h
 Clearing the value of h we have:
 h = 24 / (l * w)
 Answer:
 
The height in terms of the other sides is:
 
h = 24 / (l * w)
8 0
4 years ago
A ladder reaches a window 20 feet above the ground. The foot of the ladder is 4 feet from the wall.
kobusy [5.1K]

Answer:

\sqrt{416} ft

or about 20.396ft when rounded to the third decimal place

Step-by-step explanation:

(assuming the question is to find the ladder's length)

let "l" be the ladder's length

20^{2} + 4^{2} = l^{2}

400 + 16 = l^{2} = 416

l = \sqrt{416} ft

7 0
3 years ago
Other questions:
  • Rewrite 24/46 in simplest form.
    8·2 answers
  • How do I do this greatest common factor
    10·1 answer
  • If x=2a-b2 then a =
    9·1 answer
  • Joe eats 5 1/4 pounds of fruit a month. How much fruit will he eat in a year?
    15·2 answers
  • The graphs of linear functions f and g are shown on the grid.
    8·2 answers
  • Anyone know this problem
    9·1 answer
  • 05.03)The equation shows the relationship between x and y:
    14·2 answers
  • Find m<1 in the rhombus below
    13·1 answer
  • If the dimensions of the box are 5.4 14.2 and 26.5 what is the volume​
    9·1 answer
  • An online retail company determined that their cost for each day, x, can be determined by the function C(x) = 2x2 – 20x + 80 and
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!