Answer:
The answer is 40%
Step-by-step explanation:
170 + 255 = 425
170 / 425 = 0.4
0.4=40%
So the percent of guests that called for room service is 40%
Hope this answers your question :)
a) if AB = CD, then 3CD = 3(CD + 1) NOT TRUE
example: AB = CD = 1, then 3CD = (3)(1)=3 and 3(CD + 1) = 3(1 + 1) = 3(2) = 6
b) if AB = CD, then AB - CD = A - C + B - D NOT TRUE (it does not make sense because A, B, C and D are points)
c) if AB = CD, then AB + EF = CD + EF TRUE
because
AB = CD |add EF to both sides
AB + EF = CD + EF
d) if AB = CD, then 2AB = 2A + 2B NOT TRUE (it does not make sense because A and B are points).
Answer:
18.3125
18.5635
18 13/16
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
boys: girls : total
3 7 3+7 =10
The total number of students must be a multiple of 10
The class size is between 22 and 34
The only multiple of 10 between those numbers is 30
10,20,<u>30</u>,40
Therefor the class size must be 30
Answer: 4/5
Step-by-step explanation:
Step 1: Put the percent over 100
- 80/100
Simplify it by dividing both the numerator and denominator by a common factor, aka 10
- 80/10 - 8
100/10 - 10
- 8/10
Simplify it again by dividing both the numerator and denominator by a second common factor, aka 2
= 8/2 - 4
10/2 - 5
- 4/5
Cannot be simplified any further.
