Answer:
<em>Their masses are 100 kg and 90 kg</em>
Step-by-step explanation:
<u>Equations</u>
We'll solve the problem by setting only one variable. Let's call:
x = weight of the heavier boxer
Since the sum of the masses of both boxers is 190 Kg:
190 - x = mass of the lighter boxer.
It's given that 
of the mass of the heavier boxer is 10 kg less than the mass of the other, thus:
Operating:
Multiplying by 5:
Simplifying:
The heavier boxer's mass is 100 kg. The lighter boxer has a mass of 190-100 = 90 kg.
Their masses are 100 kg and 90 kg
Bob is x yrs old
Sister is x+6 yrs old
X+X+6=32
2X+6=32
2X=32-6
2X=26
2X/2=26/2
X=13
Bob is 13 yrs old
Sister is 13+6 yrs
= 19 yrs
13yrs+19yrs = 32 yrs
Now its 100% accurate
Answer:
10x + 6y - 2p
Step-by-step explanation:
Combine Like Terms
First combine the x's
3x + 7y - 2p + 7x - y
10x + 7y - 2p - y
Then the y's
10x + 7y - 2p - y
10x + 6y - 2p
And that's it
third angle = 80°
to find the third angle, add the 2 given angles and subtract from 180
third angle = 180° - (30 + 70 )° = 180 - 100 = 80°
Answer:
(-1,2)
Step-by-step explanation:
