Answer:
C. 60
Step-by-step explanation:
From triangle ADB,







From triangle ADC,





The perimeter is the distance around the figure.
The perimeter


Answer:
7.2 and 4.8hrs
Step-by-step explanation:
Given the ratio it took them to finish work as 3:2
Total ratio = 3+2 = 5
For the larger ratio;
3/5 *12
= 36/5
= 7.2hrs
For the shorter ratio;
2/5 * 12
= 24/5
= 4.8hrs
Hence the first worker worked for 7.2hrs while the second was 4.8hrs
The dot is not filled and it is between the 5 and 6
Answer:
for 1-12 I will say t (true) and f (false) to determine if it's proportional or not.
1) t. 7)t
2)t. 8)f
3)f. 9)t
4)t. 10)t
5)f. 11)t
6)f. 12)f
13) proportional
14) unproportional