Answer:
Add the equations to eliminate k.
Step-by-step explanation:
When we add the equations we get
next we put into and solve for k:
this way we have found k and b; therefore, adding the equations to eliminate k is a correct step for finding k and b.
Let us now look at other choices we were given.
Write the points where the graphs of the equations intersect the x axis.
These points may be the solutions to each equation, but they are not the solutions to the system of these two equations.
Write the points where the graphs of the equations intersect the y axis.
Same thing goes here: these points may be the solutions to each equation, but they are not the solutions to the system of these two equations.
Multiply the equations to eliminate b.
Multiplying the equations doesn't eliminate b, but rather it complicates the matter by producing a quadratic equation—we don't want to go down that road!
Answer:
y=2/3x+4
Step-by-step explanation:
Use rise over run to find slope, then find where the line touches the y-axis to find the y-intercept
attendance at the circus was 1,700 and the total
gate revenue was $55,300. How many children and
how many adults bought tickets?
Answer:
The number of tickets bought is 1000 adults tickets and 700 children were present
Explanation:
Let the number of children and adults present in the circus be x and y respectively
According to question,
Then, x + y = 1700 ……………..equation (1)
And, cost of ticket to circus for children and adult be 19, 42 respectively
Totalcost of ticket;
for adults = 42y; for children = 19x
19x + 42y = 55300 …………………equation (2)
Multiplying equation (1) by 19
19x + 19y = 32300 ……………… eqn (3)
Subtracting equation 1 and 3, we get
23y = 23000
y = 1000
putting this value in eq (1), we get x = 700
Therefore, 1000 adults and 700 children were present.
The length of the rectangle is 1 unit.
To find the length of the rectangle, we need to solve for the width first. We are given that the length of the rectangle is the width minus 8 units. Let's assume the width is 'w'. So the length would be 'w-8'. The area of the rectangle is given as 9 units. We can write the equation: (w-8) * w = 9. Solving this equation, we get w^2 - 8w - 9 = 0. Factoring or using the quadratic formula, we find that the width is approximately -1 or 9. Since the width cannot be negative, we discard -1 and conclude that the width is 9 units. Now, we can substitute this value back into the length equation to find the length: length = width - 8 = 9 - 8 = 1 unit.
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Answer:top box will be 86
2nd box will be 192
3rd box will be 144
Step-by-step explanation:
24x8= 192 subtract that to 206 , equals to 14, bring down the 4 makes to 144
24x6= 144 subtract that by 144 ,equals to 0
B. 170 square units
C. 115 square units
D. 225 square units
The area of the polygon is,
⇒ 140 units²
A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.
Given that;
A polygon is shown in figure.
Now, We get;
The polygon is made by two rectangles.
Hence, The area of the polygon is,
⇒ 17 x 5 + 11 x 5
⇒ 85 + 55
⇒ 140 units²
Thus, The area of the polygon is,
⇒ 140 units²
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