Answer:
41.6666667
Step-by-step explanation:
divide 500 by 12
Answer:
5 1/2
Step-by-step explanation:
Let's convert all the mixed fractions to complex fractions.
6/12 + 3/12 + 4/12 + 20/12 + 33/12
Add the fractions together
66/12
How many 12's go into 66?
5 12's go into 66.
5 6/12
Simplify
5 1/2
-9/1*4/3=-36/3
-36/3 is known as -12. The answer is -12.
Answer:
18. Sqrt40 goes between 6 and 7.
19. Sqrt83 ~= 9
Step-by-step explanation:
For both of these problems, it's really useful to be very familiar with the perfect squares on the times table. 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225...
On #18, we're looking at the sqrt40. This will be between sqrt36 and sqrt49, because 40 is between 36 and 49. But sqrt36 is 6 and sqrt49 is 7. So sqrt40 is between 6 and 7.
For #19, the sqrt83 is far closer to sqrt81 than it is to sqrt100. Sqrt81 = 9. So sqrt83 is very close to 9, it would round to 9 and not 10.
Ratio and proportion
height:shadow=1.5:2
for the building, shadow=24
1.5:2=h:24
1.5/2=h/24
multiply both sides by 24
36/2=h
18=h
the building is 18 meters
