Answer:
£1600.
Step-by-step explanation:
The commission he earns in the week = 640 - 160 = £480.
This 480 is 30 percent or 0.30 of the value of his sales, so
the value of his sales = 480 / 0.30
= £1600.
What I like to in these problems is the grouping method. Split it into x^3-5x^2 .... 6x-30. Then factor so x^2 (x-5) and 6 (x-5). Now that both are factored put the coefficients together and use (x-5). This means that you have (x^2+6) and (x-5). Solve and your zeroes are + and - root 6 and 5.
After 3 years, the predicted number of students is 21,785.
Answer:
5^-5
Step-by-step explanation:
Answer:
A: 85%, 2, 3.24,
B: covert numbers into percent
Step-by-step explanation:
<u>Part A</u>
We have:
, 2, 85%, 3.24 --> let's convert them into percentages like the 85, to determine which one is greatest/least:
85% --> 85% (already a percent)
--> to convert into percent: (19÷4) x 100 = 475%
2 --> convert first into improper fraction then into percent: (11/5) x 100 = 220%
3.24 --> multiply by 100: 3.24 x 100 = 324%
From least to greatest: 85%, 220%, 324%, 475%
= 85%, 2, 3.24,
Part B:
In part A, to determine the numbers from least to greatest, we rewrote the numbers all into percentage form by first converting into decimal form and then multiplying by 100.