Mary had flowers, of which 3/5 were roses and the rest were orchids. she sold 1/2 of the roses and 1/4 of the orchids. she then had 54 roses and orchids left. how many flowers did she have at first?

Mary have 90 flowers

Step-by-step explanation:

Given that Mary had flowers, of which 3/5 were roses and the rest were orchids.

Let Mary had x flowers.

∴ Roses are=

and orchids are

Now, She sold 1/2 of the roses and 1/4 of the orchids. She then had 54 roses and orchids left.

Hence, total flowers i.e roses and orchids sold are

The flowers which left are

⇒⇒

Therefore, Mary have 90 flowers

cells do need food. in a process known as cellular respiration, cells convert biochemical energy (oxygen as food) from nutrients into adenosine triphosphate (atp), and then release waste products.

hope this .. : d