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fiasKO [112]
2 years ago
15

The Robinson family traveled a total of 240 miles in 6 hours on their trip to visit relatives. If they travel at a constant, pro

portional rate, write an equation relating the number of miles traveled mto the number of hours h driven. Then use your equation to figure out how many miles they would travel in 13 hours.
Mathematics
1 answer:
ivanzaharov [21]2 years ago
6 0

Answer:520

Step-by-step explanation:

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A box contain 12 balls in which 4 are white 3 are blue and 5 are red.3 balls are drawn at random from the box.find the chance th
Anastasy [175]

Answer:

3/11

Step-by-step explanation:

From the above question, we have the following information

Total number of balls = 12

Number of white balls = 4

Number of blue balls = 3

Number of red balls = 5

We solve this question using combination formula

C(n, r) = nCr = n!/r!(n - r)!

We are told that 3 balls are drawn out at random.

The chance/probability of drawing out 3 balls = 12C3 = 12!/3! × (12 - 3)! = 12!/3! × 9!

= 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1/(3 × 2 × 1) × (9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1)

= 220 ways

The chance of selecting 3 balls at random = 220

To find the chance that all the three balls are selected,

= [Chance of selecting (white ball) × Chance of selecting(blue ball) × Chance of selecting(red balls)]/ The chance/probability of drawing out 3 balls

Chance of selecting (white ball)= 4C1

Chance of selecting(blue ball) = 3C1 Chance of selecting(red balls) = 5C1

Hence,

= [4C1 × 3C1 × 5C1]/ 220

= 60/220

= 6/22

= 3/11

The chance that all three are selected is = 3/11

4 0
3 years ago
Can someone please help me with how to do this?? I am lost
JulsSmile [24]

Answer:

G represents sets of student appearing for GENERAL KNOWLEDGE  

M represents sets of student appearing for MATHS

S represents sets of student appearing for SCIENCE

G ∩ M = { Max, Anael}

G ∪ S = { Max, Acel, Carl, Anael, Acton, Dario, Kai, Barek, Carlin}

8 0
3 years ago
-1 2/3÷(-2 1/5)= in simplest form
soldi70 [24.7K]
> -1 2/3 ÷ (-2 1/5)
> -1.66.. ÷ -2.2
> 0.75454...

Answer: 0.75
4 0
2 years ago
If four times the sum of a number and 3 is divided by 2, the quotient is 0: find the number
AveGali [126]

The other number is -3.

Step-by-step explanation:

Step 1; First we develop formulae for the given information. A number is added with 3 and the resulting sum is multiplied by 4. This number is then divided by 2 and the quotient is 0. Assume the unknown number is x, then the given information is as follows

The quotient of \frac{4(x+3)}{2} is 0. So \frac{4(x+3)}{2} = 0.

Step 2; Now we solve the above equation. The denominator is taken to the RHS and the RHS remains zero.

\frac{4(x+3)}{2} = 0, 4(x+3)= 0, 4x+ 12 = 0, 4x = -12, x = \frac{-12}{4} = -3.

So the other number is -3.

3 0
3 years ago
Which statements are true about the residual plot and the equation for the line of best fit for the data? select two options.. t
Nataly [62]

The statements are true about the residual plot and the equation for the line of best fit include:

  • The equation for the line of best fit is not a good approximation for the data because the points have a curved pattern.
  • The residual plot has the pattern of a curve.

<h3>What is Residual plot?</h3>

This shows the residuals on the vertical axis and the independent variable on the horizontal axis.

Since the plot has a curved pattern, the equation for the line of best fit is not a good approximation for the data as the result will be inaccurate.

Read more about Residual plot here brainly.com/question/16180255

#SPJ4

8 0
1 year ago
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