Answer:
18 people
Step-by-step explanation:
Let the number of people at the party before the arrival be x
20% of x = 3
20/100 * x = 3
20x = 300
x = 300/20
x = 15
Adding the friends , we have 15 + 3 = 18
10,800 is the answer.
You would multiply 720 by 15 because the scale is 15. I hope that makes sense! Have a great day
Answer:
12/25
Step-by-step explanation:
d = √4² + 3²
= √16 + 9
= √25
= 5
length = 4
width = 3
d = 5
length x width = kd²
4 x 3 = k(5)²
12 = 25k
12/25 = k
Answer: 158
Step-by-step explanation:
Okay so the total is 9 5/10.
Each party goer needs 6/10
So 95/10 / 6/0=. 95/10x10/6
=950/6 = 158.
Note that
- 36=1·36;
- 36=2·18;
- 36=3·12;
- 36=4·9;
- 36=6·6.
If neither (length and width) is divide by 6, then cases 1, 2, 3 and 5 are extra, because
- 36:6=6 (is divide by 6);
- 18:6=3 (is divide by 6);
- 12:6=2 (is divide by 6);
- 6:6=1 (is divide by 6).
The only possible dimensions are: width - 4 cm and length - 9 cm.
Then the perimeter is
cm.
Answer: 26 cm.
