Answer: The required expression will be
Step-by-step explanation:
Since we have given that
Amount that Liam has = $250
Amount that he and his classmates spent on present for their teacher =$p
Number of students in which $p will split = 24
According to question,
Amount that left to Liam is given by
Hence, the required expression will be
Answer:
85 cm
Step-by-step explanation:
the strut forms a right triangle with the end of the pole.
let the ends of the strut be x from the top of the pole . then
using Pythagoras' identity with 2 legs x and hypotenuse 1.2
x² + x² = 1.2²
2x² = 1.44 ( divide both sides by 2 )
x² = 0.72 ( take square root of both sides )
x = ≈ 0.85 m ( to 2 dec. places )
the ends are 0.85 m = 85 cm from the top of the pole
Answer:
The perimeter of the triangle is 105 cm.
Step-by-step explanation:
The ratio of sides of a triangle is .
The length of middle side is 35 cm.
Let first side of the tringle is , length of third side is
. middle side is of 35 cm.
So, the ratio of length of sides can be written as,
Compare the ratio to get the value of and
.
Now, the sides of the triangle are 25 cm, 35 cm and 45 cm.
Thus, the perimeter of the triangle will be the sum of all sides and can be calculated as,
Therefore, the perimeter of the triangle is 105 cm.
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