Miss Joplin is planning the resources for a maths lesson. She needs...
• 1 ruler per pupil plus 4 spare
. 5 pieces of dotty paper per pupil
. 5 pieces of card per pupil plus 6 spare.
Write down formulae for the number of rulers (r)
and the amount of dotty paper (d) and card (c).
Use p for the number of pupils.
d =
(6)
There are 21 pupils in the class. How many of
each item does Miss Joplin need?
d =
C в
[3]

R= p + 1

R= 29

D= 5p

D= 140

C= 5p + 6

C= 146

Step-by-step explanation:

Logic...

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: