The sides of the triangle are 3x, 4x and 5x
3x + 4x + 5x = 90
12x = 90
x = 90/12
x = 7.5
first side = 3x = 3 * 7.5 = 22.5 cm
second side = 4x = 4 * 7.5 = 30 cm
third side = 5x = 5*7.5 = 37.5 cm
Answer:
4 trees
Step-by-step explanation:
40/10=4
12 dollars.
1+10=11
Then 4 quarters is $1 so you then add a dollar to get
$12
Answer:
3/-2
Step-by-step explanation:
All other answers have 2 negative signs, so they all will become positive numbers.
Answer: 16%
Step-by-step explanation:
$25 - $21 = $4
Percentage = 100[discount / (original price)] % = 100($4 / $25) % = 16%
