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Oliga [24]
3 years ago
15

A bag contained 120 marbles some are red and the rest are black there are 19 red marbles for every black marble.How many red mar

bles are in the bag
Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
6 0

Answer:114 red marbles

Step-by-step explanation:

19r + 1b = 20

120/20=6 black marbles

19 x 6 = 114 red marbles

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7 0
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julsineya [31]
Any decimal number that is repeating can be written in the form <span>\frac{a}{b}</span> with b not equal to zero, so they are rational numbers.

The short answer is yes, 0.6 repeating is a rational number.

Hope this helped :)
6 0
3 years ago
Any three noncollinear points are also considered to be Coplanar
Otrada [13]
Yes and they will always be coplanar.
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Explain why a change from 20 to 40 is a 100% increase, but a change from 40 to 20 is a 50% decrease.
Rainbow [258]

Answer:

Because 20 has to be doubled to become 40. While 40 is twice as much as 20 so you just divide 40 by 20 to get 50%.

Explanation:

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4 0
3 years ago
The temperature changes can be represented by the expression -0.5( 1 -2h).Chase says that the temperature change can also be rep
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Answer:

The expression are equivalent

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The question requests that we show whether the equation -0.5( 1 -2h) is equivalent to 4(2h + 2) - 7h - 8.5 or not :

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= h - 0.5

Hence, both expressions are the same

3 0
3 years ago
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