Answer:
=7/6
Step-by-step explanation:
Join 4/3=1:7/3
7/3/2
Apply the fraction rule:=
7/3x2
Multiply the numbers=
7/6
Answer:
x = 387
Step-by-step explanation:
The wind acts in the opposite direction to the plane when the time is longer.
The wind acts in the same direction as the plane when the time is shorter.
Equation
d = r*t
Givens
- d = 1720
- x = plane's speed
- y = wind speed
- t1 = 5 hours
- t2 = 4 hours.
Substitution
- d = (x + y) * t
- 1720 = (x + y) * 4
- 1720 = (x - y) * 5
Since the two distances are the same, you can equate the right hand sides.
- (x + y) * 4 = (x - y)*5 Remove the brackets.
- 4x + 4y = 5x - 5y Add 5y to both sides
- 4x + 4y + 5y = 5x - 5y + 5y Combine all the terms.
- 4x + 9y = 5x Subtract 4x from both sides
- 9y + 4x - 4x = 5x - 4x Combine
- 9y = x
Now use one of the given equations with the distance
- 1720 = (x + y)*4 Substitute 9y for x
- 1720 = (9y + y) * 4 Combine
- 1720 = 10y * 4 Multiply the right
- 1720 = 40y Divide by 40
- 1720/40 = 40y/40 Do the division
- 43 = y y = wind speek
- 9y = x x = 9*y
- 9*43 = x
- x = 387 miles per hour.
Answer:
X = 3 x − 14
y = − x + 5
Step-by-step explanation:
Solve for the first variable, then substitute the result into the other equation.
This is how you would graph it
hope this helps :3
the image is below by the way X3
Answer:
(a) and (f)
Step-by-step explanation:
Given
See attachment for table and options
First, we calculate the slope of the table
Using:
So, we have:
The equation is then calculated using:
This gives:
So, we have:
--- The given equation
and
--- The equation of the table
An equation is represented as:
Where:
m = slope or rate of change
b = y intercept
So, for the given equation:
Rate of change = 5
y intercept = 12
For the table:
Rate of change = 12
y intercept = 5
In conclusion:
(a) has the greater rate of change:
and
(f) has the greater y intercept
