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vivado [14]
3 years ago
11

What's the answer to this math problem

Mathematics
2 answers:
GarryVolchara [31]3 years ago
4 0
Total number of marbles:
75 + 50 + 100 + 25 = 250

Probability of selecting a red marble:
25/250 (since 25 out of 250 marbles are red)
Since the top and bottom of this fraction are both divisible by 25, we can go ahead and divide them both by 25, simplifying to 1/10.

Probability of selecting a green marble:
50/250
Simplifies to 2/10
Simplifies to 1/5.

Probability of selecting a blue or orange marble
(75+100)/250
175/250
Simplifies to 7/10.

To find the probability that each event occurs in order, simply multiply them all together.

\frac{1}{10}\times\frac{1}{5}\times\frac{7}{10}=\frac{1\times1\times7}{10\times5\times10}=\boxed{\frac{7}{500}}
pogonyaev3 years ago
3 0

Answer:

7/500 or Answer Choice B

Step-by-step explanation:

1. First find the total # of ALL the marbles in the bag. (75 + 50 + 100 + 25 = 250)

2. Then define the percentage of each marble color in said bag.

  • blue: 75 out of 250 (75/250) = 30%
  • green: 50 out of 250 (50/250) = 20%
  • orange: 100 out of 250 (100/250) = 40%
  • red: 25 out of 250 (25/250) = 10%

3. Double check that the percentage = 100. (yes)

4. Understand that she could pick the said marble colors not in the order that was specified, so to determine the chances of picking the right colors in the right order. Multiple the values.

red marble: 1/10 chance

green marble: 2/10 or 1/5 chance

blue OR orange (this means add together and then divide by total: 250): 7/10 chance

multiply fractions: 1/10 x 1/5 x 7/10 = 7/500 (this is simplified)

5. Select Answer Choice (B)

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Find the equation of the line that is perpendicular to the given line and passes through the given point. Enter your answer in s
vagabundo [1.1K]

Answer:

y = -0.2x - 5.8

Step-by-step explanation:

If a line is given in the form y = mx + b, the "m" is the slope.

For the line given y = 5x, the slope is 5

The line that is perpendicular to this will have slope that is "negative reciprocal of that".

So, the perpendicular line will have slope of  -\frac{1}{5}

So, the Perpendicular Line will have equation:

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Let's find b by replacing x with 6 and y with -7 [the point given]. So we have:

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4 0
3 years ago
What is the algebraic expression for: four less than three times the number of egg orders and six more than two times the number
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Aliyah was counting her steps. It took her 1,317 steps to walk to the store, 561 steps to get to the park, and another 259 to ma
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Answer:

Aliyah will take a total of 4274 steps.

Step-by-step explanation:

Given:

Number of steps from home to store = 1317 steps

Number of steps from store to park = 561 steps

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So now we will find the Total number of steps from home to friends house.

Total number of steps from home to friends house can be calculated by adding  Number of steps from home to store and Number of steps from store to park and Number of steps from park to friends house.

framing in equation form we get;

Total number of steps from home to friends house = 1317+561+259 = 2137\ steps

Is same route is followed to home we can say that;

Total number of steps from friends house to home = 2137 steps.

So Total number of steps she will take next day will be equal to Total number of steps from home to friends house plus Total number of steps from friends house to home.

framing in equation form we get;

Total number of steps she will take next day = 2137 +2137 = 4274 steps

Hence Aliyah will take a total of 4274 steps.

3 0
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