Answer:
Option (B)
Step-by-step explanation:
There are two lines on the graph representing the system of equations.
First line passes through two points (-3, 1) and (-2, 3).
Slope of the line =
=
m = 2
Equation of the line passing through (x', y') and slope = m is,
y - y' = m(x - x')
Equation of the line passing through (-3, 1) and slope = 2 will be,
y - 1 = 2(x + 3)
y = 2x + 7 ----------(1)
Second line passes through (0, 1) and (-1, 4) and y-intercept 'b' of the line is 1.
Let the equation of this line is,
y = mx + b
Slope 'm' =
=
= -3
Here 'b' = 1
Therefore, equation of the line will be,
y = -3x + 1 ---------(2)
From equation (1) and (2),
2x + 7 = -3x + 1
5x = -6
x =
x =
From equation (1),
y = 2x + 7
y =
=
=
=
Therefore, exact solution of the system of equations is .
Option (B) will be the answer.
Answer:
x = 19/2 hope it goes well
12 lbs/3 months
18 lbs/6 months
We can simplify these to give us:
4 lbs/month and 3 lbs/month
This means the baby lost one pound in three months, or in math terms:
- 1 lb/3 months
we can get a decimal to represent the change; - .33 pounds per month
75/8 ÷ 23/8
75/8 × 8/23
Both of the 8s will cancel
Answer: 75/23
Answer:
B) The area is four times larger
Step-by-step explanation:
Therefore, the area is four times larger