The answer is around 48.40
Answer:
. In other words, there number of girls is
.
Step-by-step explanation:
The average of a number of measurements is equal to the sum of these measurements over the number of measurements.
.
Rewrite to obtain:
.
For this question:
.
.
Therefore:
.
On the other hand, there are
boys and girls in total. Using the formula for average:
.
From the question, this average should be equal to
. In other words:
.
Solve this equation for
to obtain:
.
.
.
In other words, the number of girls here is
.
What grade you in and what unit lesson is this, I might be able to help you. I go to the same school.
Answer is (d) P, Q , R
Any triangle has 3 vertices , after which its name is justified
Answer:
Step-by-step explanation:
