Answer:
[tex]\frac{15}{16}[/tex] ton of pebbles will cover the whole garden.
Step-by-step explanation:
So [tex]\frac{3}{4}[/tex] ton covers [tex]\frac{4}{5}[/tex] of the garden.
Let x be pebbles required to cover the entire garden, we can set up a proportion:
[tex]\frac{\frac{3}{4} }{\frac{4}{5} } =\frac{x}{1}[/tex]
[tex]\frac{3}{4}[/tex] / [tex]\frac{4}{5}[/tex] = x
[tex]\frac{3}{4}[/tex] * [tex]\frac{5}{4}[/tex] = x
[tex]\frac{15}{16}[/tex] = x
[tex]\frac{15}{16}[/tex] ton of pebbles will cover the whole garden.