The sum of two numbers:
x + y = 108
The difference of the same two numbers:
x - y = 78
We can use substitution to figure out x and y:
x - y = 78 can be changed to x = 78 + y
We can plug this into the first equation:
78 + y + y = 108
78 + 2y = 108
2y = 30
y = 15
Now solve for x using any of the two equations. I'll use the first equation since it's easier:
x + 15 = 108
x = 93
0.4 kilometers each week.
Answer:
2400 mm
Step-by-step explanation:
(80 x 60) - (60 x 40)
Shobo's age = x years
His mother's age = 6 times of Shobo's age
= 6x years
Five years from now
________________
Shobo's age = ( x + 5 ) years
According to the problem given,
x + 5 = one by third of his mother's
present age
x + 5 = 6x / 3
x + 5 = 2x
5 = 2x - x
5 = x
Therefore ,
Shobo's present age = x = 5 years
His mother's age = 6x
= 6 × 5
= 30 years
ANSWER:⇒ 7.35 or 7 7/20
Based on the given conditions, formulate:
29.4 ÷ 4
Calculate:
29.4/4
Multiply both the numerator and denominator with the same integer:
294/40
Cross out the common factor:
147/20
Convert the number:
147/20
Alternative result: 7.35 or 7 7/20
