Answer:
Answer : 52 girls
Step-by-step explanation:
Your ratio of boys to girls is 3:4
Set up a fractional proportion and cross multiply
3/4 = 39/x
cross multiply
3x = 4(39)
3x = 156
x = 156/3
x = 52 girls
Hope this was helpful!❤
Select all statements that are true about the linear equation.
1 answer:
Answer:
The graph of the equation is the set of all points that are solutions to the equation.
The point (1, 1) is on the graph of the equation.
The point (0, −3) is on the graph of the equation
Step-by-step explanation:
we have
This is the equation of a line in slope intercept form
Verify each statements
case 1) The graph of the equation is the set of all points that are solutions to the equation.
The statement is true
Because, if a ordered point is a solution of the linear equation, then the ordered pair lie on the line
case 2) The point (1, 1) is on the graph of the equation.
The statement is true
Because
If a ordered pair is on the graph of the equation, then the ordered pair must satisfy the equation
Substitute the value of x and y in the linear equation
For x=1, y=1
----> is true
therefore
The point (1,1) is on the graph of the equation
case 3) The point (0, −3) is on the graph of the equation.
The statement is true
Because
If a ordered pair is on the graph of the equation, then the ordered pair must satisfy the equation
Substitute the value of x and y in the linear equation
For x=0, y=-3
----> is true
therefore
The point (0, −3) is on the graph of the equation
case 4) The graph of the equation is a single point representing one solution to the equation.
The statement is false
Because, the graph of the equation is the set of all points that are solutions to the equation
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Answer:
6) C 1
7) A 3 (im not sure for this one because it's blurry)
8) C 1
Step-by-step explanation:
6) Replace the f(x) for -1 since we are told f(x) = -1. We then need to use the inverse operation to get x by itself.
Since the opposite of division (which is indicated by the fraction line) is multiplication, we need to multiply the number on the left (-1) times 2.
For this step, the opposite of subtraction is addition so in this step, we must add 3 to -2.
7) Can't explain cause I'm not sure if I'm right
8) To find out the slope of two coordinates we must use the following to determine it.
<h3>(IN THE PICTURE ATTACHED)</h3>In this case, the y with the little two will be 4 and the y with the little one is 1. 4-1 is 3 and that's the y cooridnate sorted
For the x coordinate, the x with the little two is 1 and the x with the little one is -2. Thus, we must solve 1-(-2) which also equals 3.
<h3>Since the final coordinates are 3/3 and it simplifies, the final answer is 1.</h3>