Answer:
<h2>y = 0</h2>
Step-by-step explanation:
x + 3y = 28
Put x = 28 and solve for y:
28 + 3y = 28 <em>subtract 28 from both sides</em>
28 - 28 + 3y = 28 - 28
3y = 0 <em>divide both sides by 3</em>
3y : 3 = 0 : 3
y = 0
Substitution....
y = 5x - 40...so we sub in 5x - 40 in for y in the other equation
y - 3x = -24
5x - 40 - 3x = -24
5x - 3x = -24 + 40
2x = 16
x = 16/2
x = 8
y = 5x - 40
y = 5(8) - 40
y = 40 - 40
y = 0
solution is (8,0)
Answer:
1) if b = 5
Answer: never a repeating decimal.
2) if b = 6
Answer: sometimes a repeating decimal
3) if b = 7
Answer: Always a repeating decimal
4) if b = 8
Answer: Sometimes a repeating decimal
5) if b = 9
Answer: Always a reapeating decimal.
Step-by-step explanation:
1) if b = 5
Answer: never a repeating decimal.
2) if b = 6
Answer: sometimes a repeating decimal
3) if b = 7
Answer: Always a repeating decimal
4) if b = 8
Answer: Sometimes a repeating decimal
5) if b = 9
Answer: Always a reapeating decimal.
Answer:
Area of triangle ABC=7 square units
Area of triangle A'B'C'=7 square units
Step-by-step explanation:
Triangle ABC is the preimage of triangle A'B'C' under a reflection in the line x=0.
The two triangles are congruent so they have the same area.
We can calculate the area by counting the unit squares the triangle covered.
Each full box is 1 units square.
Each triangle covered
1 full box and 12 partially covered boxes.
Each partial box covered is 0.5 square units.
Therefore the area is
![Area=1+0.5\times12](https://tex.z-dn.net/?f=Area%3D1%2B0.5%5Ctimes12)
![Area=1+6](https://tex.z-dn.net/?f=Area%3D1%2B6)
square units
The expression 3 + x = 11 is an equivalent equation of a model
The solution to the equation is x = 8
<h3>How to solve the equation</h3>
The equation is given as:
3 + x = 11
Subtract 3 from both sides of the equations
-3 + 3 + x = -3 + 11
Evaluate the expression on the right-hand side
-3 + 3 + x = 8
Evaluate the expression on the left-hand side
x = 8
Hence, the solution to the equation is x = 8
Read more about equations at:
brainly.com/question/4344214