“Jesse bought 10 more pencils than erasers” means P = 10 + E
“A pencil costs $0.15” means that $0.15*P was spent on pencils
“an eraser costs $.22” means that $0.22*E was spent on erasers
“He paid a total of $4.46” means that $0.15*P + $0.22*E = $4.46
15*(10+E) + 22*E = 446
150 + 37E = 446
37E = 296
E = 8 Jesse bought 8 erasers
DONT OPEN THE ANSWER ABOVE ITS A VIRUS. i will give an answer in the comments though
Answer:
Step-by-step explanation:
Y = kxz
Putting values of y x and z in the equation
4 = k(2)(3)
4 = k6
2/3 = k
Now finding y when x = - 6 and z = 2
Y = kxz
= 2/3(-6)(2)
= - 8
Answer:
A. Increase the level of confidence
Step-by-step explanation:
The margin of error is given by:
The margin of error is:
In which T is related to the level of confidence(the higher the level of confidence, the higher T is), s is the standard deviation of the sample and n is the size of the sample.
Increase the width:
That is, increasing the margin of error, as the width is twice the margin of error, the possible options are:
Increase T -> increase confidence level.
Increase s -> Increase the standard deviation of the sample.
Decrease n -> Decrease the sample size.
Thus, the correct answer is given by option A.
Answer: A) 2, 7, 9
<u>Step-by-step explanation:</u>
In a sudoku puzzle, there are three rules:
- Each vertical line must contain the numbers 1 - 9, with no duplicates
- Each horizontal line must contain the numbers 1 - 9, with no duplicates
- Each 3 x 3 box must contain the numbers 1 - 9, with no duplicates.
Using logic:
2 must go in the 1st box. It cannot go in the 2nd or 3rd shaded square because 2 is already in that 3 x 3 box.
That leaves the 2nd and 3rd shaded square.
9 cannot go in the 2nd shaded square because 9 is already in that vertical line.
Therefore, 9 must go in the 3rd shaded square.
That leaves the 2nd shaded square.
7 must go in the 2nd shaded square because it is the only number remaining (2 and 9 have already been placed in the other squares).
