Answer:
19.1 ft
Step-by-step explanation:
-This a Pythagorean theorem problem given by the function:
Where
H is the Hypotenuse length
h is the perpendicular height
b is the base length.
#Given that H=20 ft and base length,b =6 ft, the perpendicular height is calculated as:
Hence, the ladder reaches the wall at a height of 19.1 ft
Answer:
16 cm
Step-by-step explanation:
4 cm represents 5 km. There is a total length of 20 km, so you do 20/5=4. Since you have to multiply 5 by 4 to get 20, you also multiply 4cm by 4, and you get 16, or the amount of cm that represents 20 km.
Answer: the brother is 20 and the sister is 9
Step-by-step explanation:
29 - 11 = 18 18 divided by 2 is 9
9+11 is 20 the brothers age so the sister is 9
So 3 apples=6 dollars
therefor if we divide both sides by 3
1 apple=2 dollares
so therfor for every 1 apple, you pay 2 dollars
so if 12 apples
12 times 2=24
24 dollars
anonther way is
3 apples=6 dollars
6 apples=12 dollars
9 apples= 18 dollars
12 apples= 24 dollars
