# Posts by PsyDAG

Total # Posts: 23,195

**MATH**

J = A+3 A+7 = 6/7(J+7) Substitute A+3 for J in the second equation to solve for A. Put A value in first equation to solve for J. M = 3E M+5 + E + 5 = 70 Use similar process.

*March 2, 2016*

**Math**

What 2?

*March 2, 2016*

**Algebra**

40/12 = x/70 Solve for x.

*March 1, 2016*

**math**

9.5 - 4.75 = ?

*March 1, 2016*

**math**

Three times as much of each.

*March 1, 2016*

**Mathematics, geography, agricultural science, life science, English, Life orientation And sepedi**

See your school counselor, who can help you determine your abilities and interests.

*March 1, 2016*

**biology**

Right.

*February 27, 2016*

**math**

Either-or probabilities are found by adding the individual probabilities. 4/52 + 4/52 = ?

*February 26, 2016*

**math**

Either-or probabilities are found by adding the individual probabilities. 4/20 + 8/20 = ?

*February 26, 2016*

**maths lit,business studies and geography**

See your school counselor, who can ask you specific questions to determine careers that will suit your abilities and desires. That person will be able to tell you specifically what further qualifications you might need, depending on your choices.

*February 26, 2016*

**Math**

Good, but you forgot to print a 2 in your 4th step.

*February 26, 2016*

**math**

Let Bob's age = x, then Martha = x+15 x + (x+15) = 68 Solve for x, then x+15.

*February 26, 2016*

**math**

Add the various times for each day of the week.

*February 26, 2016*

**Math**

2 - 2(.4) - .3*2(.6) = ?

*February 25, 2016*

**STATISTIC**

No, find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability for your Z score.

*February 25, 2016*

**Math**

What two prime numbers would multiply to give you 247? To help, what two numbers would multiply to give 7 in the ones space?

*February 25, 2016*

**Math**

I assume you only roll the cubes once. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 1/2 * 1/2 * 8/17 = ?

*February 25, 2016*

**Science**

Definitely B

*February 25, 2016*

**Math**

No table. Cannot copy and paste here.

*February 25, 2016*

**statistics please help!**

I am assuming that A rings when the office is open. If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (1-.30)(.20) = ?

*February 25, 2016*

**statistics please help!**

Either-or probabilities are found by adding the individual probabilities.

*February 25, 2016*

**statistics please help!**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

*February 25, 2016*

**Math**

agree.

*February 25, 2016*

**Math- volume**

48 = .75LW Cannot tell with two unknowns. However, if it was a cubic prism, then L = W.

*February 25, 2016*

**Math**

82.25 in dollars = $82.25

*February 25, 2016*

**Statistics for the Behavioral Sciences**

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.

*February 25, 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. See your later post.

*February 25, 2016*

**Math**

2a - 16 = a + 2 Solve for for a.

*February 25, 2016*

**Check math please!**

Both correct.

*February 25, 2016*

**maths literacy, business studies, economics, tourism**

See your school counselor, who can ask you questions to see what careers you are qualified for and might want.

*February 25, 2016*

**statistics**

Correct. http://drdavespsychologypage.homestead.com/Two___Two_____four.pdf Mean only valid for interval or ratio data.

*February 25, 2016*

**Statistics**

Z = (score-mean)/SD SD = √variance Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions/probabilities related to the Z scores. Either-or probabilities are found by adding the individual ...

*February 25, 2016*

**statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

*February 25, 2016*

**statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. You are looking for the probability of one 6 and three non-6s. 1/6 * (5/6)^3 = ?

*February 25, 2016*

**statistic**

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 related to the Z score.

*February 25, 2016*

**science**

density = mass/volume

*February 25, 2016*

**genetics and breeds**

Yes, man's father can only pass down y chromosome to him, which does not carry colorblind gene. Need two recessive colorblind genes on the X chromosomes to have colorblind daughter.

*February 25, 2016*

**math**

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.

*February 25, 2016*

**Math**

No rectangle. Cannot copy and paste here.

*February 25, 2016*

**statistics**

1 - .22 = ?

*February 24, 2016*

**Math Plz help**

Yes.

*February 24, 2016*

**geomertry**

You need to state the specific problems with your answer.

*February 24, 2016*

**STATISTIC**

Agree. Same.

*February 24, 2016*

**intermediate algebra (Lial)**

First, if you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous question, where it is more likely to be overlooked. T(°C) = (T(°F) - 32) × 5/9

*February 24, 2016*

**college algebra**

Since you indicate that Ivan is only "adding money," the change will only be positive.

*February 24, 2016*

**college algebra**

Looks like 550 is starting amount and 40 is the change per week.

*February 24, 2016*

**math**

What is your question?

*February 24, 2016*

**life science ,cat,maths lit and english**

See your school counselor, who can ask you specific questions to help you answer your question.

*February 24, 2016*

**Math**

What are your choices? Cannot copy and paste here.

*February 23, 2016*

**algebra**

Let x = first angle x + 2x + (3x-6) = 180

*February 23, 2016*

**STATISTIC**

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.

*February 23, 2016*

**MATH**

First, please do not use all capitals. Online it is like SHOUTING. Not only is it rude, but it is harder to understand. Thank you. You don't give any indication of the proportion of green vs. blue marble that Jessica has.

*February 23, 2016*

**math**

What are your answers?

*February 23, 2016*

**math**

So she wants $40 per week to spend and save. Let x = hours. 10 + (6*3) + 7x ≥ 40 Solve for x.

*February 22, 2016*

**math**

No figure shown. You cannot copy and paste here.

*February 22, 2016*

**Math**

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.

*February 22, 2016*

**psychology of human resources**

Classical conditioning is characterized by several factors. I. The key relationship is associating antecedent events. II. It originates with reflexive behavior. The behavior is "built in." III. Classical conditioning is essentially a process of stimulus substitution...

*February 22, 2016*

**maths**

D = rt = 30 * 2.25 = ?

*February 22, 2016*

**Biology**

Since this is not my area of expertise, I searched Google under the key words "prophage" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=prophage&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the information you desire ...

*February 22, 2016*

**math**

What are your choices? Cannot copy and paste here.

*February 22, 2016*

**mathematics**

How many candidates are there?

*February 22, 2016*

**Science**

Both have YgRw. Use 4 by 4 Punnett square. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl

*February 22, 2016*

**stats**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (±.30 from mean) and get the Z scores. Insert Z scores into equation below. Z = (score-mean)/SD

*February 21, 2016*

**statistics**

If you are just concerned with that team, it is a parameter. If you want to generalize the data to all teams, it is a statistic. r = ?

*February 21, 2016*

**math**

I get the same answer you do. However, online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. Also 70% ≠ .70%. 1.7 * 66 = 112.20

*February 21, 2016*

**pre algebra**

Not sure what you are asking. 50 - 8 = 42?

*February 21, 2016*

**Science - Ms. Sue plz**

How much sunlight reaches down to 1,000 meters?

*February 20, 2016*

**English (Check)**

Good.

*February 20, 2016*

**Math**

x = cans collected per day 688 + 7x > 2000

*February 20, 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 your later post.

*February 20, 2016*

**Bio**

Because creatures evolve.

*February 20, 2016*

**Math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

*February 20, 2016*

**math**

Since 8 and 9 are the only digits >7, 2/10 of students will probably chose these numbers.

*February 20, 2016*

**Math**

Right.

*February 20, 2016*

**Statistic**

Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n If only one SD is provided, you can use just that to determine SEdiff. Find table in the back of your statistics text labeled something like "...

*February 19, 2016*

**math**

StatKey not shown.

*February 19, 2016*

**algebra**

3(2*50+2*9) + 4(3^2) = ? The first set is for the sides and the last is for the corners.

*February 19, 2016*

**statistics**

You cannot copy and paste here. Also, if you don't know the standard deviation, you cannot determine the temperature in that cup. Z = (score-mean)/SD

*February 19, 2016*

**Statistics**

SD = approx. range/4

*February 19, 2016*

**geomerty**

P.S. That isn't geometry.

*February 19, 2016*

**geomerty**

Out of every 7 games, they lost 3 and won 4. 161/7 = 23 23 * 4 = ? 23 * 3 = ?

*February 19, 2016*

**Algebra 1**

Boys = 8 * 2 Big dogs = 8 * 8 * 4 Little dogs = 8 * 8 * 8 * 4 That's a lot of dogs for a backpack.

*February 19, 2016*

**Math**

It would help if you proofread your questions before you posted them. You have just indicated that "inner area of the rectangle is 1.5m." Also, area would be in m^2.

*February 19, 2016*

**science**

I would guess oxydation. Since this is not my area of expertise, I searched Google under the key words "banana browning" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=banana+browning&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, ...

*February 18, 2016*

**science**

It would help if you proofread your questions before you posted them. How does an ice cube in a glass relate to a swimming pool?

*February 18, 2016*

**Math**

Perpendicular to what? If they are perpendicular, they form 90 degree angles, giving you a rectangle.

*February 18, 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. See Your later post.

*February 18, 2016*

**Science**

Right

*February 17, 2016*

**Algebra**

Let x = # of 1.50 and y = # of 3.50 x = 3y + 5 1.50x + 3.50y = 1607.50 Substitute 3y+5 for x in the second equation and solve for y. Insert that value into the first equation and solve for x. Check by putting both values into the second equation.

*February 17, 2016*

**Math**

25 1/2 - 7 5/8 - 4 3/4 = ?

*February 17, 2016*

**Math**

(-11)(-17) = ? Remember that a minus times a minus = a positive.

*February 17, 2016*

**p.e**

performance

*February 17, 2016*

**Math**

1 - 1/3 - 2/5 = ? Translate into 15ths and solve.

*February 17, 2016*

**math**

L = 3W L + 2W = 30 Substitute 3W 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. Area = L * W

*February 17, 2016*

**maths (?)**

No data or question.

*February 17, 2016*

**Health Pt.2**

You are right.

*February 17, 2016*

**math - probability**

Either an event occurs or does not occur.

*February 17, 2016*

**Math needs help**

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

*February 16, 2016*

**Math**

2/10 * 10 = 2 A. 2 * 4 = ? B. If she used 10 daises, she must have made 5 arrangements.

*February 16, 2016*

**Zambian Lotto**

Pick whatever numbers you want. As long as the selections for numbers are random, any combination of different numbers could be a predicted as a winner. If I could pick winners for our lottery, I would have done so.

*February 16, 2016*