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Fittoniya [83]
3 years ago
15

12. A bag contains a total of

Mathematics
1 answer:
viva [34]3 years ago
6 0

Answer:

The answer would be 80 black marbles.

Step-by-step explanation:

The student chose 10 marbles. 8 of those were black. There are 100 marbles total. Going at this rate, picking 10 at a time, 10x10 is 100. So we would do this 10 times. 8x10 is 80. 2x10 is 20. There are 80 black marbles.

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Answer: 7:41 am

Step-by-step explanation:

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3 0
3 years ago
$5,000 is invested at 3% interest.
adell [148]
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VLD [36.1K]

Step-by-step explanation:

the rate of change is the slope of the line connecting both points.

the slope is the ratio y/x indicating how many units y changes, when x changes a certain amount of units when going from one point to another.

so, here

x changes by -10 units (from -24 to -34)

y changes by -10 units (from 60 to 50).

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4 0
3 years ago
The difference of a number and 6 is the same as 5 times the sum of the number and 2. What is the number?
Sunny_sXe [5.5K]

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Step-by-step explanation:

4 0
3 years ago
What is the expanded form of 3×(x+3)^2
saul85 [17]
3x(x+3)^2
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answer
3x^3 + 18x^2 + 27x
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