Answer:
The age of triplets is 42 years old
Step-by-step explanation:
The question in English is
The sum of the ages of twins and triplets is 150 years if the ages are exchanged the new sum is 120 years. What is the age of triplets?
Let
x -----> twins age
y ----> triplets age
we know that
2x+3y=150 ------> equation A
2y+3x=120 -----> equation B
Solve the system by graphing
The intersection point both graphs is the solution of the system
The solution is the point (12,42)
see the attached figure
therefore
The age of triplets is 42 years old
The basketball fell at rate of 9.8 feet per second
Step-by-step explanation:
The rate is the distance per unit time
Here
Given
Distance = height = h = 53.9 feet
time = t = 5.5 sec
The rate will be given as:
Hence,
The basketball fell at rate of 9.8 feet per second
Keywords: Division, decimals
Learn more about division at:
#LearnwithBrainly
Answer:
D
Step-by-step explanation:
gradient= change in y
__________
change in x
m= y2_ y1
______
x2- x1
m= -14- 2
_____
5-1
m= -16
___
4
m= -4
Answer:
Account 1: £720, account 2: £1227.38, account 3: £950.
Step-by-step explanation:
I hope this helps! Have a great rest of your day!
X would equal 60 degrees because the degree of the top left area is equal to the degree of the bottom right. So the equation would be x+20=80 so you would solve to get x=60
