Using a system of equations, it is found that he bought 18 twigs.
<h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the variable is the amount n.
Nine times the square of the twigs he bought there Is half of their cube, hence the equation is:
Then, applying cross multiplication:
He bought 18 twigs.
To learn more about a system of equations, you can check brainly.com/question/24342899
If 8/11 people carry a briefcase, this means that 3/11 people do not carry a briefcase (i.e. 1 - 8/11).
If we assume this proportion applies across all 700 people, what could we do next?
1/5 of a metre. 0.2m. 20cm. However you like to write it :)
This is because 3/5 is being divided by 3. So a third of 3/5 is 1/5, just as a third of 3 is 1.
Also, if you change it decimals, you get 0.6m ÷ 3 = 0.2m. You can then change it to cm if you like. 0.2m, 20cm, 1/5 of a metre. They're all the same thing and equally acceptable as an answer.
Hope I helped :)
Answer:
624ft
Step-by-step explanation:
Surface Area of a Triangular Prism (A) = b*(h + l) + 2*l*s
<h3>No</h3>
because during 4 lunch periods the cafeteria can hold up only:
4 · 90 = 360 students
and 360 < 408