Respuesta :
Answer:
The cost of 7 roses and 8 petunias is $9001
Step-by-step explanation:
We are given expression for cost as
[tex]C=3r+2.5p^3r+2.5p[/tex]
where
r is number of roses
p is petunias
We are given
r=7
and
p=8
so, we can plug here
[tex]C=3(7)+2.5(8)^3(7)+2.5(8)[/tex]
now, we can simplify it
and we get
[tex]C=9001[/tex]
So,
The cost of 7 roses and 8 petunias is $9001
Answer:
$41.
Step-by-step explanation:
We have been given an expression [tex]3r+2.5p[/tex], which gives the cost in dollars of r roses and p petunias.
To find the cost of 7 roses and 8 petunias we will substitute r=7 and p=8 in our given expression.
[tex]\text{Cost of 7 roses and 8 petunias}=3\times 7+2.5\times 8[/tex]
[tex]\text{Cost of 7 roses and 8 petunias}=21+20[/tex]
[tex]\text{Cost of 7 roses and 8 petunias}=41[/tex]
Therefore, the cost of 7 roses and 8 petunias is $41.
