Answer:
Step-by-step explanation:
Given statement:
A fourth of a number added to -45 is -11
To find the number.
Solution:
Let the number be =
The given statement can be transformed mathematically as:
Solving for .
Simplifying by removing parenthesis.
Multiplying each term by 4 to remove fractions.
Adding 180 both sides.
∴
Thus, the number = 136
Answer:
(-2, 1)
(2, 5)
Please solve the third question and answer in the comments and I will tell you if you are correct.
Step-by-step explanation:
1)Find the solution of the following system of equations; express the answer as a coordinate pair (x,y):
y = x + 3 subtract from the bottom and solve for x
y = -2x - 3
y - y = x - (-2x) + 3 - (-3)
0 = 3x + 6
-6 = 3x
-2 = x
y = x + 3 y = -2 + 3 y = 1 (-2, 1)
2)Find the solution of the following system of equations; express the
answer as a coordinate pair (x,y):
y = 2x + 1 subtract from the bottom and solve for x
y = x/2 + 4
y-y = 2x - 1/2 x +1 - 4
0 = x(2-1/2) - 3
3 = 1.5x
2 = x y = 2x + 1 y = 2(2) + 1 y = 5 (2, 5)
3) Find the solution of the following system of equations; express the
answer as a coordinate pair (x,y):
y = -3x + 6 subtract from the bottom and solve for x
y= -1/2x+1
y-y = x(-3 - (-1/2)) + (6 - 1) follow the examples above
Answer:
Assuming the number is 9.094 the answer is 9.094 If it is whole number it is 9000
Step-by-step explanation:
The tens place is .0
The Hundreds place is .09
The thousands place is .094
if you are talking about whole numbers: it's 9000
When rounding, 5 and above it is rounded up, and 4 and below is rounded down.
So for this problem you only need to look one place to the right.
9<u>0</u>94 Because that number is 0 that means you round down.
Answer:
-4
Step-by-step explanation:
2x + 3y = -14
x - y = 3
Multiply the second equation by -2 to eliminate x
2x + 3y = -14
-2x +2 y = -6
-----------------------
5y = -20
Divide by 5
5y/5 = -20/5
y = -4
Answer:
the answer is 147 I am not sure