dayana72
01.12.2020 •
Mathematics
In a jar of marbles, the ratio of green marbles to black marbles is 3:5. If the jar contains 21 green marbles, how many black marbles are in the jar?
green 3 21
black 5 ?
Your
10
12
30
35
Solved
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Ответ:
there are 35 black marbles in the jar
Step-by-step explanation:
3*7=21
so..
5*7=35
Ответ:
The answer is "y > x-2 and y < x + 1"
Step-by-step explanation:
In the given question the last choice, that is "y > x-2 and y < x + 1" which can be defined in the following diagram.