Answer:
x=2/3, y=0
Step-by-step explanation:
3x + 7y = 2,
6x - 5y = 4
Make the x coefficient the same in both equations.
3x + 7y = 2
(whole thing multiplied by 2)
6x + 14y = 4
Now subtract the equations to eliminate the x variable.
6x + 14y = 4
-(6x - 5y = 4)
19y = 0
<u>y = 0</u>
Substitute 0 for y in one of the equations.
3x + 7(0) = 2
3x = 2
<u>x = 2/3</u>
The <em><u>correct answer</u></em> is:
$19.99.
Explanation:
33 1/3% is equal to taking 1/3 of a number. To take 1/3 of a number, we multiply by 1/3:
29.99(1/3) = 29.99/3 = 9.9966666667 ≈ $10
This means the price is marked down by $10. This makes the new price 29.99-10 = 19.99
There are 10 letters in Peppermill but we have 3p,2l,2e. We must take this into consideration.
10!/(3!2!2!)=151200
Hope you have a calculator with !
Answer:
<u>True</u>
Step-by-step explanation:
A Kilogram (kilo) is a unit of measuring metric mass. To perform this conversion you need to note that
1 Kilogram (kg) = 1000 grams
Which means that <em>converting Kilogram to Grams </em>would involve multiplying kilogram by 1000.
For example, 100 kg to grams = 100 * 1000 = 100,000 Grams
Answer:
Option D
Step-by-step explanation:
A reporter collects a random sample of 50 runners from all the runners who finished the Cherry Blossom Ten Mile Run in 2009 and constructs a 99% confidence interval for the true mean finish time to be (86.05, 99.38) minutes.
Assuming the reporter performed the calculations correctly, which of the following statements are appropriate interpretations of this confidence interval?
We can expect that 99% of confidence intervals created using the same method the reporter used will contain the true mean run time for runners of this race.
