Answer:
10,350$
Step-by-step explanation:
2,300÷2=1,150
1,150×2=2,300
1,150×9=10,350
Subtraction of a negative is the same as addition.
-10 - (-2)
-10 + 2 = -8
Your answer is: -8
The expression that would represent the total number of students at the summer camp for all three years is (b) 5.5s - 54
<h3>How to determine the expression?</h3>
Let the number of students in 2010 be s.
So, we have:
- Year 2011 = 1/2s i.e. half as many students in 2010
- Year 2012 = s - 54 i.e. 54 students less than 2010
The total number of students is:
Total = s + 1/2s + s - 54
Evaluate
Total = 9s/2 - 54
Rewrite s:
Total = 5.5s - 54
Hence, the expression that would represent the total number of students at the summer camp for all three years is (b) 5.5s - 54
Read more about expressions at:
brainly.com/question/723406
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EFHG => EF = AC = 3cm and EG = AB = 10cm, so the area = 3*10 = 30 cm^2
ACFE => AC = 3cm and FC = 2cm, so the area = 3*2 = 6 cm^2
Answer:
15 units
Step-by-step explanation:
ΔABC is right with ∠C = 90° and AB the hypotenuse
using Pythagoras' identity on the triangle
AB² = AC² + BC² , hence
BC² = AB² - AC² = 17² - 8² = 289 - 64 = 225
⇒BC = = 15 units