Janet is three years older than her sister Julie. Janet's brother is eight years younger than their sister Julie. the sum of all of their ages is 55 years.
Answers
Let us assume age of Julie to be x years this implies age of janet is (x + 3) years and age of Janet's brother is (x - 8) in this way we will solve for x and find out everyone's age.
How we are assuming and constructing ages from the given question and forming them into mathematical expressions ?
here we have taken x years for the person having least age for our convenience.Her sister is 3 years older than her so her age addition to 3 years.Her elder brother is 8 years younger than her sister so her sister's age less to 8 years.
in the given question sum of their ages is 55
So,
[ x + (x + 3) + (x - 8) ] = 55
3x - 5 = 55
3x = 60
x = 20
So, Julie's age is 20 years
Janet's age is 20 +3 = 23 years
Janet's brother's age is = 20 - 8 = 12 years.
Learn more about Age related word problems here :
#SPJ2
(x+3)+x+(x-8)=55 Julie is 20 years old
3x-5=55 Janet is 23 years old
3x=60 brother is 12 years old
x=20
Related Questions
An ice cube is made of 5 fluid ounces of water.About how many milliliters of water does it take to make the ice cube
James works as a waiter. He served meals with bills of $23.59, $40.65, $30.50, and $15.68. If his total for tips was $17.67, what percent tip did he receive for serving these meals? Round your answer to the nearest percent?
BRAINLY find the value of the x
Point O is the center of the circle in the diagram. What ism∠BCA?
Answers
Answer:
<FIN
Step-by-step explanation:
If SADLER ≈ FINEST
That means that all the angles are congruent.
So if you have SAD the first angles 3 angles of the figure on the left
Then the FIN would be congruent since it is the first 3 angles of the figure on the right.
VISUAL
SADLER ≈ FINEST
I hope you understood this!
Hope this helps ya!
Answers
Answer:
it's called the horizontal line
Step-by-step explanation:
also known as y=0
Answers
x + 2|3x⁴ + 2x³ - 5x² + 0x - 4
- (3x⁴ + 6x³)
-4x³ - 5x²
- (-4x³ + 8x²)
-13x² + 0x
-(-13x² - 26x)
26x - 4
-(26x + 52)
-56
Answers
Answer:
v = 180
Step-by-step explanation:
324 = 144 + v
v = 324 - 144
v = 180
Answer:
v = 180
Step-by-step explanation:
The equation is basically 324 = 144 + v
Then you just solve the equation:
324 = 144 + v
-144 = -144
180 = v
Hope this is what you were looking for.
Which function can the company use to determine its total revenue from the two products, R(x), after they have been on the market for x years, and approximately what will be the revenue generated by sales of the products after 6 years?
R(x) = 9,000[7(1.035)x + 9(1.021)x]; $635,580
R(x) = 9,000[7(1.035)x + 9(1.021)x]; $169,200
R(x) = 9,000[9(1.035)x + 7(1.021)x]; $170,936
R(x) = 9,000[9(1.035)x + 7(1.021)x]; $688,050
Answers
y = A (b) ^ x
Where,
A: initial amount
b: growth rate
x: time
Therefore, substituting values we have:
Product A:
y = 63000 (1,035) ^ x
Product B:
y = 81000 (1,021) ^ x
The sum of the products is:
R (x) = 63000 (1,035) ^ x + 81000 (1,021) ^ x
Rewriting:
R (x) = 9000 (7 (1,035) ^ x + 9 (1,021) ^ x)
Evaluating for 6 years:
R (6) = 9000 * (7 * (1,035) ^ 6 + 9 * (1,021) ^ 6)
R (6) = 169200 $
Answer:
The revenue generated by sales of the products after 6 years is:
R (x) = 9,000 [7 (1,035) x + 9 (1,021) x]; $ 169,200
Answers
On Uranus : g ( Uranus ) = 10.5 m/s²
Weight = Mass x Acceleration due to gravity
Weight = 50 kg · 10.5 m/s² = 525 kgm/s² = 525 N