A wedding planner uses 72 ivy stems for 18 centerpieces. When she arrives at the venue, she realizes she will only need 16 centerpieces. How many ivy stem should she use so that the ratio of ivy stems to centerpieces stays the same?

64 ivy stems

Step-by-step explanation:

A wedding planner uses 72 ivy stems for 18 centerpieces.

for only need 16 centerpieces ⇒ she will use x  ivy stems

Using the ratio and the proportional

ivy stems : centerpieces

    72       :         18

     x        :          16

Solve for x

∴ x = 16 * 72/18 = 64 ivy stems

So, she should us 64 ivy stems

6.5

step-by-step explanation:

you said it was in the question

~courtney

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!