Answer: the ration is 15 black marbles : 11 blue marbles
Step-by-step explanation:
Answer:
B. 143.4
Step-by-step explanation:
In simple terms, surface area = adding area of all surfaces
This figure has 6 sides.
Surface area = 2 * area of trapezium + 2* area rectangle + area of bottom rectangle + area top rectangle
Surface area = 2 * ()
=
=
= 143.4
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Answer:
Last one
Step-by-step explanation:
Answer:
I dont really get what its asking, can you explain please?
Step-by-step explanation:
180 min
Explanation:
3
×
10 min
=
30 min
In 6 hours, Mr. White takes a total of 30 min in breaks.
36 h
=
6 h
×
6
In 36 hours
, there are 6 sets of 6 h
.
Hence we can multiply the number of minutes in breaks taken in
6 h
ours by 6 to obtain the number of minutes in breaks taken in 36 h
ours.
30 min
×
6
=
180 min