ninaaforever
13.07.2020 •
Mathematics
The sum of ages of Kwaku and Kojo is 30 years. Kwaku is 4 years older than Kojo. Find each of their ages.
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Ответ:
Step-by-step explanation:
first set up an equation
x = Kojo's age, x + 4 = Kwaku's age
2x + 4 = 30
find x from there and you should get x = 13, so Kwaku is 17 and Kojo is 13
Ответ:
x = 40
y = 15
Step-by-step explanation:
equilateral triangle: all angles = 60
4(15) = 60
40 + 20 = 60