How many times does 8 go into 144
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A baby weighed 3.2 kg at birth. She gained 0.17 kg per week. She now weighs 5.75 kg. How old is she now?
What is 900000000 divided by 2000
100 is 10 times as much as 1 ten
911 PLEASE HELP PLEASE
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Answer:
Approximately 143 mL of 1:4 solution and 457 mL of water
Step-by-step explanation:
A 1:4 solution has a concentration of 1/(1+4) = 1/5 or 20%.
Similarly, a 1:20 solution has a concentration of 1/(1+20) = 1/21 or 4.76%.
If x is the mL of 20% solution and y is the mL of water, then:
x + y = 600
1/5 x = 1/21 (600)
Solve:
x = 5/21 (600)
x ≈ 143
y ≈ 457
You need approximately 143 mL of 1:4 solution and 457 mL of water.
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Imagine there are 2 triangles solve for one 3*3=9\2=4.5
Then add
4.5+4.5=9
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A ray is a half-infinite line.AB represents a ray.
What is a ray?
A ray is a half-infinite line (sometimes called a half-line) in which one of the two points A and B is assumed to be at infinity.
As we can see that AB has a point on one side while the other side of the line has an arrow, therefore, AB represents a ray.
Learn more about Ray:
Answer:
B. Ray
Step-by-step explanation:
When they ask what does AB represent because they put the A first this means that the line is going from A to B and because there is an arrow and the end of B this means its a ray.
B. y = -3y + 2
C. y = 3y - 2
D. y = -3y - 2
Answers
y = mx + b
Let us find the y-intercept first.
The place where the line crosses the y axis is 2.
y = mx + 2
Now, find the slope.
Find two points on the line, then solve.
Alright, I found two points on the line:- (-2,8) and (2, -4)
m = -12/4
m = -3
The slope is -3. The y-intercept is 2
Lets put them into the equation
y = -3x + 2
Final answer: B. y = -3x + 2
The equation that represents the line shown in the graph is:
B. y = -3x + 2
Further explanation
Solving linear equation mean calculating the unknown variable from the equation.
Let the linear equation : y = mx + c
If we draw the above equation on Cartesian Coordinates , it will be a straight line with :
m → gradient of the line
( 0 , c ) → y - intercept
Gradient of the line could also be calculated from two arbitrary points on line ( x₁ , y₁ ) and ( x₂ , y₂ ) with the formula :
If point ( x₁ , y₁ ) is on the line with gradient m , the equation of the line will be :
Let us tackle the problem!
From the graph , the line goes through the point ( -1 , 5 ) and ( 0 , 2 ).
Let:
( x₁ , y₁ ) = ( 0 , 2 )
( x₂ . y₂ ) = ( -1 , 5 )
We can calculate the gradient of the graph by using this following formula:
Next , we can find the equation of the graph by using this following formula:
Learn more
- Infinite Number of Solutions : brainly.com/question/5450548
- System of Equations : brainly.com/question/1995493
- System of Linear equations : brainly.com/question/3291576
Answer details
Grade: High School
Subject: Mathematics
Chapter: Linear Equations
Keywords: Linear , Equations , 1 , Variable , Line , Gradient , Point