Tuesday
January 24, 2017

Posts by PsyDAG

Total # Posts: 22,910

Algebra
R = 2G .25G + .50R = 5.00 Substitute 2G for R in the second equation and solve for G. Insert that value into the first equation to solve for R. Check by putting both values into the second equation.
November 9, 2016

algebra 2
Cannot copy and paste here.
November 9, 2016

Maths
400 - .4 = ?
November 9, 2016

STATISTICS
It would help if you proofread your questions before you posted them. You are missing some values.
November 8, 2016

Maths
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
November 8, 2016

stats
You have a lot of extraneous information. 500/47,600 = ?
November 8, 2016

Math
(10-6) + .50 per ride
November 8, 2016

Algebra
To "break the record," it would be any value less than 26 degrees. t ? 25 + 5
November 7, 2016

maths
a) 3 * 7 * 9 = 189 b) 189 - 171 = 18 18/9 = ?
November 7, 2016

maths
1) 1/4 * 2/3 = 1/6 2) 1/3 * 48 = 16 1/6 * 48 = 8 48 - 16 - 8 = ??
November 7, 2016

Maths
His/her baskets would be 8 per game times 6 games. These would only the ones s/he makes.
November 6, 2016

statistics
Find the mean first = sum of scores/number of scores Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance. Standard deviation = square root of variance I'll let you do the ...
November 5, 2016

Stats
https://www.google.com/search?client=safari&rls=en&q=statistics+t+vs+Z+distribution&ie=UTF-8&oe=UTF-8
November 5, 2016

Business
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Agree
November 5, 2016

Math 062
210/170 = x/252 Solve for x.
November 5, 2016

Maths
a. 30/150 = ? b. 10 + (120-85) = ?
November 4, 2016

biology
If dimples (d) is a recessive trait to non-dimples (N), then each parent could be NN or Nd. If one or both NN, P(N) = 100%. If both Nd, then P(N) = 75%. Thus it cannot be determined from the phenotype of the first child.
November 3, 2016

Statisics
(37-33)/(37-23) = ? (27-23)/(37-23) = ?
November 3, 2016

2nd grade math
8+5 = 13, carry the 1 to the tens column, then 1+3+4 = 8. 38 + 45 = 83
November 3, 2016

Algebra
It would help if you proofread your questions before you posted them. What are the side lengths and what is your question?
November 3, 2016

Math
The first is the absolute value regardless of sign. The second is negative.
November 3, 2016

Math
The first is the absolute value regardless of sign. The second is negative.
November 3, 2016

algebra (?)
It would help if you proofread your questions before you posted them. What equation?
November 3, 2016

math
It would help if you proofread your questions before you posted them. What function?
November 3, 2016

Maths
It would help if you proofread your questions before you posted them. "the first 600 km /h"?
November 3, 2016

Science
Since this is not my area of expertise, I searched Google under the key words "theory of evolution evidence support" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=theory+of+evolution+evidence+support&ie=UTF-8&oe=UTF-8 In the ...
November 2, 2016

statistics
Here is process: Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.0625) and its Z score. Insert data into above equation and solve for score.
November 2, 2016

math
I don't really understand it either. Possibly they are looking for the values that will not have a fraction of cupcake in the solution.
November 2, 2016

math
If I understand the question correctly: 6th, 12th, 18th steps
November 2, 2016

English 2 please help
Agree with all.
November 2, 2016

maths (?)
What is your question?
November 2, 2016

statistics
The variable is number of children, which is discrete. (You can't have half of a child, pregnancy does not count.) Values are 0 to ??
November 1, 2016

Math
It would help if you proofread your questions before you posted them. "5 ten times greater"?
November 1, 2016

math (?)
Table not available.
November 1, 2016

Math
10 + 7*1.5 ? 20.5
November 1, 2016

algebra
P = 4x for small square P = 4(x+2) for large square 4x+2 = 2(4x) Solve for x then x+2.
November 1, 2016

statistics
Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.99) and its Z score. Insert data into above equation and solve for score.
November 1, 2016

Chemistry needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
November 1, 2016

math (?)
Cannot decipher your data.
November 1, 2016

Statistics
a) yes b) If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 2/4 * (2-1)/(4-1) = ? c) 2/4 * 2/(4-1) = ?
November 1, 2016

Algebra
The vertical bars indicate absolute value, regardless of sign. 16/7
October 31, 2016

probability and Stats
SEm = SD/?n I could only find it from b.
October 31, 2016

Maths
Q1 — 1/6 Q2 — DK, more data needed, but would guess very unlikely Q3 — DK, more data needed, what was their past performance?
October 31, 2016

Math
Let x = ten and y = 20 cent coins x = y+12 .10x + .20y = 5.40 Substitute y+12 for x in the second equation and solve for y. Insert that value into the first equation to solve for x. Check by putting both values into the second equation.
October 31, 2016

Math
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
October 31, 2016

maths(?)
Clarify question.
October 31, 2016

math
L = W + 11 2L + 2W = 106 Substitute W+11 for L in the second equation and solve for W. Insert that value into the first equation to solve for L. Check by putting both values into the second equation.
October 30, 2016

Statistics
It would be okay to compare the Z scores, but not the raw scores, from each test. In order to do that, you would have to know the mean and standard deviation of each test, assuming they were all normally distributed.
October 30, 2016

math
The empirical rule states that for a normal distribution, nearly all of the data will fall within three standard deviations of the mean. The empirical rule can be broken down into three parts: 68% of data falls within the first standard deviation from the mean. 95% fall within...
October 30, 2016

Statistics
(a) yes (b) If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1/6 * 1/6 = ? (c) same odds (d) Either-or probabilities are found by adding the individual probabilities.
October 30, 2016

Statistics
Agree with all answers
October 30, 2016

math
D = 6M (D + 12) = 2(M + 12) Substitute 6M for D in the second equation and solve for D. Insert that value into the first equation to solve for M. Check by putting both values into the second equation.
October 30, 2016

Maths
(500-5)/500 = ?
October 30, 2016

Maths
2/3x = 1/4x + 500 Solve for x.
October 30, 2016

Science
agree
October 29, 2016

Discrete Math
a) #red/total = ? b) If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. c) Either-or probabilities are found by adding the individual probabilities. d) (1-c)^5 e) 6/38 * (1-6/38) = ?
October 29, 2016

Science
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See later post.
October 29, 2016

Statistics
Z = (score-mean)/SEm SEm = SD/√n Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score. Multiply by 1100.
October 29, 2016

Statistics
Z = (score-mean)/SEm SEm = SD/√n Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score. Multiply by 1900.
October 29, 2016

math
I will start you out. a) There are 36 possibilities. 6,2; 2,6; 3,5; 5,3 are the only combinations that = 8. b) P(even) = 3/6 = 1/2 If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual ...
October 28, 2016

math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. a) 3/6 * 3/6 = ? b) 1/6 * 1/2 = ? c) 3/6 * 3/6 = ?
October 28, 2016

Math
Sí, sí, c.
October 28, 2016

math
(a) 1/4 If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (b) 1/4 * 1/(4-1) = ?
October 28, 2016

math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 4/12 * (4-1)/(12-1) = ?
October 28, 2016

Math
I don't know why you have the second step. 2s < $25 s < $12.50
October 28, 2016

Math
(24,710.40-22,464)/22,464 = % increase 1.(% increase) * 24,710.40 = ?
October 28, 2016

math
(-5)(-2) = 10
October 28, 2016

math
It would help if you proofread your questions before you posted them. [34+?] Also, online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown.
October 28, 2016

Algebra
$6.50h = m h = 4.25
October 28, 2016

math
(1/12)x = 5/8 2/24x = 15/24 2x = 15
October 28, 2016

Spanish
Sorry, pressed wrong button. Agree, second one is incorrect Third is correct, but "yo" is redundant.
October 27, 2016

Spanish
No, trabajadora is a noun, not an adjective.
October 27, 2016

Math
Since this is not my area of expertise, I searched Google under the key words "Compare partial products and regrouping" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=Compare+partial+products+and+regrouping&ie=UTF-8&oe=UTF-8 In ...
October 27, 2016

math
W = 175/D W-5 = 4(D-5) Substitute 175/D for W in the second equation and solve for W. Insert that value into the first equation to solve for D. Check by putting both values into the second equation.
October 27, 2016

Math (?)
Cannot post flow chart. Even so, need to let us know the three numbers.
October 27, 2016

Algebra
agree
October 27, 2016

STATISTICS
(a) Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability that relates to the Z score. (b,c) Reverse process from proportion to Z score. Insert into above ...
October 27, 2016

science
True
October 27, 2016

botany?
Since this is not my area of expertise, I searched Google under the key words "biggest desert plant" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=%22biggest+desert+plant%22&ie=UTF-8&oe=UTF-8 In the future, you can find the ...
October 27, 2016

algebra
20 + .40(x-60) = C Insert cost and solve for minutes(x).
October 26, 2016

algebra
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See your later post.
October 26, 2016

Spanish
Don't have post here.
October 26, 2016

Science HELP!!
We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.
October 26, 2016

algebra
If t = $6 and s = $3, and you buy 5 notebooks 3t + 2s ≤ $24 Do you want > 5 notebooks?
October 25, 2016

Science
Which science? Species?
October 25, 2016

Ela
Unless a specific problem is posted, we cannot help you.
October 25, 2016

Drivers ED
agree
October 25, 2016

Science
traction?
October 25, 2016

algebra
-15 + 5x + 4 = 5q - 11 5x = 5q - 22 x = q - 22/5 I assume this is what you wanted to know, but I am not sure, since you did not ask a question.
October 25, 2016

Math (?)
Lack data. Why do you multiply by 4?
October 25, 2016

maths
We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.
October 24, 2016

Science Biology
Each mutation has an equal probability of occurring.
October 24, 2016

Math
1. x > 17 2. 3x ≤ 21 x ≤ 7 3. 5a < 20 a < 4 2t+8 ≥ -4t-4 6t ≥ -12 t ≥ -2
October 24, 2016

Math
19
October 24, 2016

Statistics (?)
It would help if you proofread your questions before you posted them. No values given. Z = (score-mean)/SEm SEm = SD/√n Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability ...
October 24, 2016

science
D = r * t D = 65 * 7/3 = 151 2/3 151 2/3 = 65t 151 2/3 = 43t Compare the two.
October 24, 2016

Math
Online "^" is used to indicate an exponent, e.g., x^2 = x squared. Move decimal place 5 points to the right. 1.42*10^5 = 142,000
October 23, 2016

psy/315 (?)
No table.
October 23, 2016

value
From your data: x + 9 = 2 1/4x = 2.25x Solve for x. However, this does not solve to be a whole number. Typos?
October 23, 2016

Math
Assuming that the person has to completely refill an empty tank: 35d + 19.95d + 19*3.40 = b
October 22, 2016

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