there are 2 1\2 bus loads of students standing in a parking lot. The students are getting ready to go on a field trip. 2\5 of th
2 answers:
You might be interested in
Answer:
D
Step-by-step explanation:
The equations are
● 4x + 2y = 10 (1)
● 4x - 2y = -10 (2)
● 4x + 2y = 10
Add - 4x to both sides
● 4x + 2y -4x = 10 -4x
● 2y = 10 -4x
Divide both sides by 2
● 2y/2 = (10 - 4x)/2
● y = 5 - 2x
● y = -2x + 5 (1)
● 4x - 2y = -10
Add -4x to both sides
● 4x -2y -4x = -10 - 4x
● -2y = -10 - 4x
Divide both sides by -2
● -2y/-2 = (-10 -4x)/-2
● y = 10 + 2x
● y = 2x + 5 (2)
So the equation are
● y = 2x + 5
● y = -2x + 5
Graph them
The lines intersect at (0,5) but aren't perpendicular
So the answer is d
Answer:
a) $432
b) (i) $8970
Step-by-step explanation:
Given that:
Ratio of Cost of Hansi and Megan is 7 : 4.
Hansi's holidays cost = $756
Hansi's earnings in 2008 = $7800
In 2009, there are 15% more earnings than in 2008.
To find:
Cost of Megan's holiday.
Earnings in 2009 ?
Solution:
As per given question statement,
Let the holiday cost of Hansi = 7
Let the holiday cost of Megan = 4
As per question statement:
We have to find the value of 4 now.
b)(i)
Earnings in 2009:
$7800 + 15% of $7800