Answer:
15
Step-by-step explanation:
let r represent red marbles then white = 2r + 5 and total is 20, thus
r + 2r + 5 = 20 ( subtract 5 from both sides )
3r = 15 ( divide both sides by 3 )
r = 5 ← number of red marbles
Thus number of white = 20 - 5 = 15
Answer:
A: 120
Step-by-step explanation:
5! means 5 factorial
the factorial of a number is the number times every whole number until 1
in this case,
5 * 4 * 3 * 2 * 1
5 * 4 = 20 , 3 * 2 * 1 = 6
20 * 6 = 120 (option A)
If this helps. please consider giving me brainliest.
Hi there
The markup percentage is
((23,750−22,950)÷22,950)×100
=3.5%
Answer:
125 %
Step-by-step explanation:
Computers purchased in the last month = 8
By the middle of the current month, 8 more computers than the last month were purchased. This means, total number of computers purchased by middle of current month = 8 + 8 = 16
Number of computers purchased by end of current month = 2
So,
Total computers purchased by current month = 16 + 2 = 18
We have to find the percentage increase in the number of computers from last month's purchases to the end of this month's purchases. The formula for percentage change is:
![\text{Percentage Change}=\frac{\text{New Value - Original Value}}{\text{Original Value}} \times 100\%](https://tex.z-dn.net/?f=%5Ctext%7BPercentage%20Change%7D%3D%5Cfrac%7B%5Ctext%7BNew%20Value%20-%20Original%20Value%7D%7D%7B%5Ctext%7BOriginal%20Value%7D%7D%20%5Ctimes%20100%5C%25)
Here, Original Value is the number of computers from last month and New Value is the number of computers from current month. Using the values in the formula, we get:
![\text{Percentage Change}=\frac{18-8}{8} \times 100\% = 125\%](https://tex.z-dn.net/?f=%5Ctext%7BPercentage%20Change%7D%3D%5Cfrac%7B18-8%7D%7B8%7D%20%5Ctimes%20100%5C%25%20%3D%20125%5C%25)
Thus, there was a 125% increase from last month's purchases to the end of this month's purchases
5x is a short term for 5x X, so u just need to do 30/5 and that is what x equals.