With two number cubes, what is the probability of rolling a sum of a 9?

Answers

Answer 1
Answer: 7 out of 11 is the probability of rolling a 9

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What is the range of this relation? {(0,5), (2,3), (1, -4), (-3, 3), (-1, -2)}

Answers

Answer:

The Answer is 5,3,-4,3,-2 because they are the points on the y axis

Step-by-step explanation:

the range = { -4, -2, 3, 5}

Ann works in a supermarket for $10.00 per hour. If her pay is increased to $12.00, then what is her percent increase in pay ?

Answers

The percentage is the change with respect to the original thus the percentage increase in her pay will be 20%.

What is the percentage?

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicatinghundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

As per the given,

Originalamount = $10

Increased pay = $12

% increase = (12 - 10)/10 x 100

⇒ 20%

Hence "The percentage is the change with respect to the original thus the percentage increase in her pay will be 20%".

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20% increase in her pay 


Estimate the sum by rounding each mixed number to the nearest half or whole number.8 1/5+ 1 7/16

Answers

You round the 1st number to the nearest whole number which is 8. The second number is rounded to the nearest half.
So it would be 8 + 1 8/16 = 9 1/2.      

The school held a bake sale as a fundraiser. The bake sale only accepted quarters, loonies, and toonies.⅓ of the coins in the bank are quarters and ⅕ of the coins are loonies. There are 48 toonies.

How much money did the fundraiser make?

Answers

Answer:

There are 102 coins total:

34 Quarters

20 loonies

48 toonies

Step-by-step explanation:

Assuming money is counted in coins instead of value, it can be solved like this.

1. find a common denominator for 1/3 and 1/5. We can use 15. So, of the money collected, 5/15 were quarters and 3/15 were loonies. This makes 7/15 toonies. If there are 48 toonies, we can divide this by 7 to find the value of 1/15. 48/7 = 6 6/7. Multiply this number by 15 (for each value) and you get 102 6/7.

There are 102 coins total:

34 Quarters

20 loonies

48 toonies

In which quadrant is the number –14 – 5i located on the complex plane?I
II
III
IV

Answers

Answer:

III

Step-by-step explanation:

- 14 tell you that you should be moving left of (0,0) That makes the answer either in quad 2 or quad 3.

- 5i tells you that you are moving down. That tells you that you are moving down.

You are in quad III. It the question was -14 + 5i, you would be moving left and up. That would put you in quad II.

Answer: III

Step-by-step explanation: on edg

Assume that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of $2,175 per hour and a standard deviation of $245.What is the operating cost for the lowest 4 percent of the airplanes? (Round z value to 2 decimal places. Omit the "$" sign in your response.)

Answers

I assume you can use either a graphing calculator with built-in normal distribution or a normal distribution chart? Either way, check z-value for p<0.04 and get z=-1.75
x=mean+(s.d.)*z=2175-1.75*245=1746.25