Step-by-step explanation:
Slope intercept form of an equation is written as;
y=mx+b where m is the slope of the line and b is the y-intercept
Given points (3,19) and (8,42) find m as;
m=Δy/Δx
Δy=42-19=23
Δx=8-3=5
m=23/5
Finding the equation of the line where m=23/5, point (3,19) and (x,y)
m=Δy/Δx
23/5=y-19/x-3
cross product
23(x-3) = 5(y-19)
23x-69=5y-95
23x=5y-95+69
23x=5y-26
23x+26=5y
23x/5 +26/5 =5y/5
23/5 x +26/5 =y
⇒⇒ y=23/5x +26/5
Learn More
Slope-intercept form of an equation :brainly.com/question/12005129
Keywords :scatter plot, data, years, line of fit, points
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The expressions that represent number of tiles that Devon used on her mosaic:
A. 20 + 2t + 2c
D. 20 + t + t + c + c
<h3>What is an expression?</h3>
An expression refers to a mathematical equation which shows the relationship between two or more numerical quantities or variables.
For the expressions that represent number of tiles that Devon used on her mosaic:
- Let the triangle tiles be t.
- Let the circle tiles be c.
- Two rows of t triangle tiles = t + t = 2t.
- Two rows of c circle tiles = c + c = 2t.
Mathematically, the expression is given by:
Total tiles = 20 + t + t + c + c
Total tiles = 20 + 2t + 2c.
Read more on expressions here: brainly.com/question/12189823
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Complete Question:
Devon made a mosaic in art class with different-shaped tiles. She started by putting 2 rows of t triangle tiles at the top of the mosaic and 2 rows of c circle tiles at the bottom. She finished by putting 20 square tiles in between the triangle and circle tiles.
Pick all the expressions that represent how many tiles Devon used on her mosaic.
A. 20 + 2t + 2c
B. 20 + 4 ( t + c )
C. 2 ( 20 + t + c )
D. 20 + t + t + c + c
I think the answer is 80 pounds
Answer:
1.067 would be the answer your looking for in this question.
