Answer:
Age of younger brother is 4 years..
And age if elder brother is 14 years.
Step-by-step explanation:
Let us denote 'x' as the age of smaller brother,
then, the age of younger brother will be x+10 years.
x+x+10 = 18
2x+10 = 18
2x = 18-10
2x = 8
x = 8/2
x = 4
Age of younger brother is 4 years.
Age of elder brother = x + 10
= 4 + 10
= 14 years.
Here, You need to calculate the slope of the graph by taking any two random points, as follows:
(x₁,y₁) = (0,0) & (x₂,y₂) = (1,55)
Now, we know,
y₂-y₁ = m(x₂-x₁)
55-0 = m(1-0)
m = 55/1
m = 55
Here m represents the slope of graph which is nothing but rate of change of distance.
In short, option A will be your answer.
Hope this helps!
Since the total amount of students in the graph is 50, this means that 1 in every 25 students choose sports. There are however 200 students and not 50 in the question. 25 goes into 200 8 times, so there are 8 students doing sports.
Can you show us the question?
Answer:
x = 7
Step-by-step explanation:
4 + 5(x + 2) = 7x
4 + 5x + 10 = 7x
5x - 7x = - 4 - 10
- 2x = - 14
- x = - 14/2
- x = - 7
x = 7
