A)
160c / 20m
1c / (20/160)m
therefore, he takes 1/8 minutes to burn 1 calorie
b)
m = rise/run = 20/160 = 1/8
Y = x + 1....so we sub in x + 1 for y in the other equation
2x + y = 7
2x + x + 1 = 7 ....combine like terms
3x + 1 = 7....subtract 1 from both sides
3x = 7 - 1
3x = 6 ....divide both sides by 3
x = 6/3
x = 2
y = x + 1
y = 2 + 1
y = 3
so ur solution is : (2,3)
Answer:
26.a
27 c
28.a
Step-by-step explanation:
Answer: $13
Step-by-step explanation:
To determine the solution arithmetically in two steps, first divide 68.25 by 3 and then subtract 9.75 from the result. To determine the solution algebraically, set up and solve the equation 3(x+9.75)=68.25. Each friend paid $13 for dinner.
The cross section that results, is a triangle.
Step-by-step explanation:
Cross section is a shape that forms when a slice or a cut is made through a solid.
A solid can have multiple cross sections depending on where you slice the solid.
Cross section perpendicular to the base of a solid will result in triangles.Cross sections parallel to the base of the solid will result in hexagons and so on.
Cross section help in representing three dimension objects in a two dimension way.
