<u>Answer</u>:
Therefore has one solution.
<u>explanation</u>:
Given equations:
6x + y = -7
-24x -7y = 25
Make y the subject:
6x + y = -7
y = -7 - 6x ..............equation 1
-24x -7y = 25
-7y = 25 + 24x
y = (25 + 24x)/-7 ..........equation 2
Solve them simultaneously:
(25 + 24x)/-7 = -7 - 6x
25 + 24x = -7 (-7 - 6x)
25 + 24x = 49 + 42x
42x - 24x = 25- 42
18x = -24
x =
Then y is:
y = -7 - 6x
y = -7 - 6( )
y = 1
Has one separate value of x and y: ( , 1 ); so it has one solution.
Answer: There are 19 classes
Step-by-step explanation:
divide the total amount amount of students by the amount of students in each class
35 divided by 12 is 2.92
so she would need to bake 3 bathes to have enough for everyone !!
Chloe this is your math teacher, stop cheating
Answer:
The formula for the perimeter of the sector of a circle is given below :
Step-by-step explanation:
Perimeter of sector = radius + radius + arc length
Perimeter of sector = 2 radius + arc length
Arc length is calculated using the relation :
Arc length = l = (θ/360) × 2πr
Therefore,
Perimeter of a Sector = 2 Radius + ((θ/360) × 2πr )