Answer:
![{ \rm{S = lw + wh + lh}}](https://tex.z-dn.net/?f=%7B%20%5Crm%7BS%20%3D%20lw%20%2B%20wh%20%2B%20lh%7D%7D)
• Group the h terms by organised term arrangement :
![{ \rm{S = (wh + lh) + lw}}](https://tex.z-dn.net/?f=%7B%20%5Crm%7BS%20%3D%20%28wh%20%2B%20lh%29%20%2B%20lw%7D%7D)
• Then using distributive property, factorise out the value h so that the reverse is true.
![{ \rm{S = h(w + l) + lw}}](https://tex.z-dn.net/?f=%7B%20%5Crm%7BS%20%3D%20h%28w%20%2B%20l%29%20%2B%20lw%7D%7D)
• for the variable "lw", divide it by h in order to add it to the bracket of (w + l). Make sure the reverse is true:
![{ \rm{S = h(w + l) + h( \frac{lw}{h} )}} \\](https://tex.z-dn.net/?f=%7B%20%5Crm%7BS%20%3D%20h%28w%20%2B%20l%29%20%2B%20h%28%20%5Cfrac%7Blw%7D%7Bh%7D%20%29%7D%7D%20%5C%5C%20)
• finally, completely factorise out the value h
![\hookrightarrow \: \: { \boxed{ \boxed { \rm{ \: \: S = h(w + l + \frac{lw}{h} ) \: \: }}}}](https://tex.z-dn.net/?f=%20%5Chookrightarrow%20%5C%3A%20%5C%3A%20%7B%20%5Cboxed%7B%20%5Cboxed%20%7B%20%5Crm%7B%20%5C%3A%20%20%5C%3A%20S%20%3D%20h%28w%20%2B%20l%20%2B%20%20%5Cfrac%7Blw%7D%7Bh%7D%20%29%20%5C%3A%20%20%5C%3A%20%7D%7D%7D%7D)
Answer:153
Step-by-step explanation:
From the question, we are informed that Emilio asks his classmates what month they were born and that he finds that 15 out of 125 classmates were born in July. This gives us a fraction of 15/125 = 3/25.
If there are 1,280 students in Emilio's school, the number of students that he can expect to have birthdays in July would be:
= 3/25 × 1280
= 153.6
There will be 153 students expected
What exactly where you asked to do?
make x subject of formula?
Answer:
Step-by-step explanation:
7x + 6 + 5
six and five both are regular numbers but the 7x is not like term
7x + 11
Answer: 60 batches
Step-by-step explanation:
Let the number of batches be x
If 1 batch = 1/4 = 0.25tsp
x batches = 15tsp
0.25x = 15
x = 15/0.25=60