Answer:
f(7) = 5
Step-by-step explanation:
f(7) means find the value of y when x = 7
Locate x = 7 on the x- axis, go vertically up to meet the curve then read the corresponding value of y from the y- axis on the left, thus
f(7) = 5
Answer:
a. £ 26.25 b. We would require less than 35 tiles depending on the width of the gap.
Step-by-step explanation:
a. To find the number of tiles needed, we divide the area of the room by the area of the each tile.
So, 350 cm × 210 cm ÷ (70 cm × 30 cm) = 5 × 7 = 35
So, we need 35 tiles.
Since each tile costs 75 p, it will cost 35 tiles × 75 p/tile to tile the wall = 2625 p = £ 26.25
b. If there had to be a gap between the tiles, we would require less than 35 tiles. The width of the gap would also determine the amount of tiles needed.
Answer: -32, -11, 5, 31, 33
