Your answers should be 221, 222, and 223
Answer:
Speed of train from station M = 85 miles per hour
Speed of train from station N = 90miles per hour
Step-by-step explanation:
Given that the distance between two points M and N is 380 miles
Suppose the speed of train M is x
So, the speed of train N is 5 + x
Formula to use:
distance = speed x time
For the train from point M
d = x * 2
d = 2x
For the train from point N
d = (5 + x) * 2
the above 2 distances plus 30 miles equals 380 miles
Equation:
2x + 2(x+5) + 30 = 380
2x + 2x + 10 + 30 = 380
4x + 40 = 380
4x = 380 - 40
4x = 340
x = 340/4
x = 85 mph for train M
Now put the value in the second train's speed
x + 5
85 + 5
= 90 mph for train N
(brainly.com/question/12233662)
Answer:
(5,-1)
Step-by-step explanation:
To Calculate the slope of the sides of the triangle. The formula to calculate the slope is given as,
pls mark brainliest
Answer:
Both
Step-by-step explanation:
5+3+4=
12
3+1+1=
5
1+1=
2
1=
1
The line plot shows this data for each number.
Answer:
<em>The length of the side along the river is 140 m</em>
Step-by-step explanation:
<u>Equations</u>
To solve the problem, we need to recall the area of a trapezium is:

Where b1 and b2 are the lengths of the parallel sides and h is the height of the trapezium.
The field to be bought by Mohan has a trapezium shape with a side along the road of side x and a side along the river of side 2x, as stated in the problem.
Knowing the height is h=100 m, and the area is 10500 m2:

Simplifying:


Dividing by 150:

x = 70 m
2x = 140 m
The length of the side along the river is 140 m