Answer:
15 inches
Step-by-step explanation:
If 3 miles represents 5 inches and you want to know what represents 9 miles Just multiply 5*3 to get 15
Step-by-step explanation:
do 3 X 40
then do 2 X 50
add them
divide by how many hours
Answer:
3
Step-by-step explanation:
Because you can see there was one cube length in figure A and there was 3 cubes length in figure B.
The height of the ramp is 9 meter
<u>Solution:</u>
It is given that a skateboard ramp is 15 meters long and it extends 12 meters from the base of the starting point.
If we look at the sum, closely we understand that the ramp is a right angled triangle.
Which has a base length of 12 metres and a hypotenuse of 15 metres.
We need to find its height.
To do so we can use the Pythagoras theorem
Pythagorean theorem, states that the square of the length of the hypotenuse is equal to the sum of squares of the lengths of other two sides of the right-angled triangle.
By above definition, we get
Since we already know the lengths of the hypotenuse and base we can substitute them in the formula and solve for the height.
Let height of the ramp be denoted by ‘h’
Therefore, the height of the ramp is 9 meter
The expressions for the ages of Jhonny, Freddy, Estefania and the total sum written in terms of a are :
- Jhonny = a
- Freddy = 3 + 2a
- Estefania = 2 + 3a
- Total ages = 6a + 5
Johnny's age = a
Freddy's age is 3 years more than 2 times Johnny's age ; hence, Freddy's age = 3 + 2a
Estefania's age is 2 years more than 3 times Johnny's age ;
Hence, Estefania's age = 2 + 3a
The ages of Jhonny, Freddy and Estefania's ages can be written using the addition operator thus :
a + (3 + 2a) + (2 + 3a)
a + 3 + 2a + 2 + 3a
a + 2a + 3a + 3 + 2
6a + 5
Therefore, the ages of Jhonny, Freddy, Estefania and the total sum of their ages are a, 3+2a, 2+3a, 6a+5 respectively.
Learn more :brainly.com/question/18796573
