First, figure out what you do and don't know....
You do know that 3 times the sum of a number and 4 is 18 more than the number....you don't know the number so you make it the variable x
now take 3 times the sum of a number and 4 and make that an expression 3x+4 this expression is the same or equal to the sum of x and 18 x+18
3x+4=x+18
2x+4=18
2x=14
x=7
hope this helped :)
If he got 5 points in the first round and he needed at least thirty he would score 9 points in the next three rounds
Answer:
Step-by-step explanation:
(x,y)→(-x,-y) (180° about the origin)
1.p(-3,2) ,in the second quadrant
P(-2,-3) is in 4th quadrant.
in the clockwise it is rotation of 270° about the origin.
2.
Q(-4,-5) is in 4th quadrant.
Q(4,5) is in 1st quadrant.
so it is 180° rotation in the clockwise direction.
3.
R(1,7) is in 1st quadrant.
R(7,-1) is in 4th quadrant.
Hence it is 90° rotation about the origin in clockwise direction.
Answer:
The inverse function is:
{(1,8), (2,-1), (5,10), (-3,-3)}
Step-by-step explanation:
When a function is represented in the form of ordered pairs, the first element of each ordered pair is the input and the second element in each ordered pair is the output. In the inverse of a function the input becomes output and the output becomes input.
Given function is:
{(8,1), (-1,2), (10,5), (-3,-3)}
Reversing the order of elements of ordered pairs will given us the inverse function.
The inverse function is:
{(1,8), (2,-1), (5,10), (-3,-3)}
Begin
3x-4=14
3x=18
x=6
.5n=1.25
n=2.5
x+1=2x-2
x+3=2x
3=x
x+3=10
x=7
6x-13=-11
6x=2
x=1/3
p=4-p
2p=4
p=2
End
