jolly rancher

1) The final mixture weighs 12 + 3 = 15 pounds and is 40% platinum. Thus you need .40 x 15 = 6 pounds of platinum total from the two metals that were combined. The first metal contained .45 x 12 = 5.4 pounds of platinum. The second metal must then contain...

9 years ago

Given: Cars = SUVs x (1 + 0.947) Given: Cars – SUVs = 18 Thus, Cars = 18 + SUVs. Substitute and obtain: 18 + SUVs = SUVs x (1 + 0.947), which gives 18 = 0.947 x SUVs SUVs = 19 Cars = 37

9 years ago

The hexagonal prism candle requires 21 x 8 = 168cc of wax. After that, 260 - 168 = 92cc of wax would remain. A triangular prism candle with a height of 14 centimeters and a base area of 7 square centimeters would require 14 x 7 = 98cc of wax, which is mor...

9 years ago

wrong category - re-submit under juvenile

9 years ago

one that you enjoy and has good prospects for employment when you finish school languages are good if you want to be a teacher jobs as a translator are not very plentiful

9 years ago

Their workforce is likely very diverse in terms of religion, ethnicity, gender, etc. What does that say about their global strategy? Does it imply that McDonalds would like to continue expanding into more countries by promising the local population jobs?...

9 years ago

not enough info, but . . . formula: result = (a + b)x - y (for example) prompt["Please enter the value for x:"] x = (input from user) prompt["Please enter the value for y:"] y = (input from user) prompt["Please enter the value for a:"] a = (input from use...

9 years ago

assuming you're working in degrees . . . the three angles sum to 180 degrees A = 2B A + B = C A + B + C = 180 then substitute

9 years ago

LG = (1513 * 0.2) + ((92 + 83 + 76 + 95 + 95) * 0.8)

9 years ago

assuming there were no people in the survey population who did not respond to all questions, the population size would be LAT + not-LAT = 105 + 25 = 130 because the two subsets are mutually exclusive, i.e., the intersection of those two subsets is empty t...

9 years ago

not sure the background, but . . . in a vacuum there is no pressure (theoretically) the particles would move more slowly when there is pressure, i.e., when there are other particles packed around the coloured particles inhibiting their movement

9 years ago

Depends on how your particular professor grades. Does he/she grade on total points or does he/she use a proportional scaling method to fit a perfect score into, say, 100 points. It appears that there is no scaling used, since a perfect score on the master...

9 years ago

A) Real/Rational B) Real/Irrational because -2.324 = (-2324/1000) but sqrt(46) cannot be expressed as a fraction

9 years ago

Not sure, but I think you mean: If a man sells an article for Rs 1600 he insures a loss equal to the profit if he sells that article for Rs2000. Find the cost of that article. If that is your question then . . . (Rs1600 - Cost) = -(Rs2000 - Cost) Thus, Co...

9 years ago

oops - thought I read a square was required - sorry and may God come to your assistance with math

9 years ago

since the interest is not compounded and only based on the original deposit, she receives monthly interest of: $500 * 0.02 = $10 mo-0: $500 mo-1: $510 mo-2: $520 mo-3: $530 mo-4: $540 Yes - linear function, since the rate of change is constant.

9 years ago

Nonchantristic

9 years ago

a good rule to keep handy is this . . . in right angle trigonometry the following will always be true for the two acute angles: 1) tan = opposite/adjacent 2) sin = opposite/hypotenuse 3) cos = adjacent/hypotenuse seriously ... write them on your hand :)

9 years ago

OK, not enough caffeine. kidding . . . probably divided the new total by the old total - which is incorrect. should be difference divided by old total

9 years ago

I think it's: 2 + 4 + 4 + 4 + 4 + 4 = 22 for six hours work

9 years ago

Because the force applied was not sufficient to overcome the coefficient of friction.

9 years ago

median or mean?

9 years ago

The easiest way to proceed with this is to recognize that cos^2(x) + sin^2(x) = 1. So, no matter what x is, even if it is p/3, the sum is 1. Pythagorean thm works - think of the unit circle: hypotenuse (or radius) is always 1 on the unit circle, so c^2 =...

9 years ago

1) a + b = 83 2) a - b = 24 Now use substitution - for example: from 2) above: a = b + 24 then from 1) above: (b + 24) + b = 83 now solve for b then for a . . .

9 years ago

say the number is x (x - 4) / (x + 26) = 1/3 now go for it - solve for x . . .

9 years ago

which question? - i'll give it a shot

9 years ago

you could do the equations OR you could just recognize that (conservation of energy) the ball will slow to a stop and fall from that point and then achieve the same velocity it had at the original point so, 15 m/s

9 years ago

mean of those two numbers is . . . ((-2) + (-0.125)) / 2 = -1.0625

9 years ago

assuming that P(A n B) means "Probability of A and not B" or P(A AND (NOT B)) a) it should be possible to have P(A n B) = 0.5 because included in P(A) = 0.6 could be instances of randomly selecting a student who has BOTH Visa and MC. So in that case P(A A...

9 years ago

however, if the notation P(A n B) means P(A conjunction B) or P(A AND B) then the answer is different. P(A AND B) = 0.5 could not happen given your numbers above because that would imply P(B) >= 0.5. In words: you can't have the situation where P(B) = 0.4...

9 years ago

not clear - pls restate more clearly

9 years ago

"ship passes lighthouse" tells me that the ship (at that instant) is on a straight line that is perpendicular to the shoreline and 10km from the lighthouse, moving parallel with the shoreline. a) initially (at time t=0, the instant of the ship's passing a...

9 years ago

sorry - lost my name somewhere along the way

9 years ago

1) The force due to the acceleration of gravity is straight down on the book (we call this a "normal force"), so the book doesn't move. 2) continue in that state to infinity. 3) same what? apparently because one had a larger velocity(or speed in this case...

9 years ago

12 vdc - correct? use ohms law where voltage (EMF) = 12 volts DC and resistance = 7.5 ohms: V = I*R or voltage = current x resistance so current = I = 12/7.5 = 1.6 amps now you have a steady-state circuit with 1.6 amps of current flow for 5 seconds how ma...

9 years ago

i = 0 DO 10 times i = i + 1 <<Prompt for number>> <<Read and store number entered as number_i>> end DO i = 0; j = 0 DO 10 times i = i + 1 IF number_i > 50 THEN j = j + 1 end DO Display["Count of numbers exceeding 50 is: ", j]

9 years ago

should be easy for you how many inches in a yard? answer: 36 how many yards does she have? answer: 8 1/2 there are 36 inches in each one of those 8 1/2 yards so . . . multiply 36 by 8 1/2 to find how many total inches she bought

9 years ago

for the first point you have tan(60) = height/adjacent for the second point you have tan(45) = (height - 10m)/adjacent so height/tan(60) = (height - 10m)/tan(45) put in the values for each tangent and solve for height

9 years ago

you are correct sir

9 years ago

so if each cup is 8 ounces and a pint is 2 cups then there must be 2 x 8 = 16 ounces in each pint now aquaman drinks 48 ounces in 1 day so in 7 days he drinks 7 x 48 = 336 ounces per week now you just need to know how many pints are in 336 ounces so what'...

9 years ago

let C be the third vertex of the horizontal triangle, directly below the building for the vertical triangles, height = AC(tan(45)) = BC(tan(30)) = AC, since tan(45) = 1 now use law of cosines on the horizontal triangle to obtain 250^2 = AC^2 + (AC/tan(30)...

9 years ago

yep - you are quite correct!

9 years ago

yes that's correct just don't forget that your answer is in meters, since you used 9.8 many teachers will count off if you don't include units in your answer

9 years ago

let C be the third vertex of the horizontal triangle, directly below the building for the vertical triangles, height = AC(tan(45)) = BC(tan(30)) = AC, since tan(45) = 1 now use law of cosines on the horizontal triangle to obtain 250^2 = AC^2 + (AC/tan(30)...

9 years ago

yes - b

9 years ago

your probability seems low if E wins they can do it with: 0 losses 1 loss 2 losses for how many combinations can they do each of the above start there

9 years ago

en<dot>>Wikipedia<<dot>>org<<slash>>wiki<<slash>>Amortization_schedule

9 years ago

if E wins, they can do it with: 0 losses out of 3 games: C(2,0) = 1 way to do that, since the last game must be a win 1 loss out of 4 games: C(3,1) = 3 ways to do that, since the last game must be a win 2 losses out of 5 games: C(4,2) = 6 ways to do that,...

9 years ago

each inch on the plan represents 12 actual feet, because 6.5 * 12 = 78 (78ft / 6.5in) = 12ft/in 3 3/8 * 4 = 13 1/2 ft

9 years ago

thx ms sue

9 years ago

yes they go well together however be advised that many universities will want you to take an "applied math" sequence of courses if you are majoring in physics or engineering they may resist your efforts to take the pure math courses because they claim tha...

9 years ago

in your problem statement the man is running at about 59 km/hr you probably want to restate

9 years ago

F = G*(M*m/r^2) he's just saying that (according to a formula you've maybe never seen) if you double the planet's mass (M in the formula) you will double the force due to gravity, because the relationship is linear if you double the planet's radius, you w...

9 years ago

((twenty) + (five)) >= 4 * (three + number) or maybe ((twenty) + (five)) >= 4 * (three) + number which? are they the same?

9 years ago

use google/wikipedia

9 years ago

or use Newton and Einstein as an example there are many

9 years ago

1) cost is Euro14 per CD shopkeeper wants 25% profit that means he/she wants to sell each CD for 25% more than the cost how do you increase 14 so that it's 25% more than 14? maybe multiply 14 by (1 + 25%) = 14 * 1.25 ??

9 years ago

4) (W1 + W2 + W3 +W4)/4 = 25 (Wx + Wy + Wz)/3 = 24 so (W1 + W2 + W3 +W4) = 100 and (Wx + Wy + Wz) = 72 what's missing from the second sum?

9 years ago

looks good!

9 years ago

you're very welcome

9 years ago

probably not foot, since most textbooks are relatively small (except maybe first year calculus :)) would it be easier to say that your textbook is 1.583333 feet long or 19 inches long?

9 years ago

let's look at each sentence 1) plural subject and singular verb 2) plural subject and singular verb 3) plural subject and singular verb 4) ?? subject and ?? verb

9 years ago

correct! inches works better here

9 years ago

is that a statement of fact or a question? what do you want to do? maybe solve for b??

9 years ago

welcome!

9 years ago

(Eggs) * (Price) = 240 (Eggs + 24) * (Price - 0.5) = 240 do you know simultaneous equations? if not, it's OK first, solve each equation above for Price then, set those two results equal to each other the solve that one remaining equation for Eggs

9 years ago

SORRY . . . think I told you wrong try this instead (Eggs) * (Price) = 240 (Eggs + 2) * (Price - 0.5) = 240 first, solve each equation above for Price then, set those two results equal to each other the solve that one remaining equation for Eggs

9 years ago

HQ: 14 times overseas: 1 time 14/15 of the total

9 years ago

in your problem statement, the sprinter could achieve his max velocity in a fraction of a second or it could take to the finish line

9 years ago

?? - question probably pertains to the students' weight pounds

9 years ago

remember the law of sines your largest angle will be opposite your longest side and you have a total of 180 degrees to work with

9 years ago

OK from your initial problem statement you have this: Let D be the number of dozens of eggs the man actually sold. He was paid Rs240 for D dozens of eggs - right? So far, we have this first equation: (1): D * (Price) = Rs240 Next, the problem states that...

9 years ago

sorry Somay - Law of Cosines: c^2 = a^2 + b^2 – 2ab cosC where a, b and c are the lengths of the three sides opposite the three angles A, B and C (respectively) a is the side opposite angle A, etc. Now let a = 4p and b = 5p and c = 6p Then you have cosC =...

9 years ago

adjacent = 41m you want side opposite tan52 = opposite/adjacent

9 years ago

sorry you want hyp cos 52 = adj/hyp

9 years ago

Hi Aly - use the solution we found previously we obtained: Rs240/D = (Rs240 + 0.5D + 1)/(D + 2) Now solve for D: Rs240 = D * (Rs240 + 0.5D + 1)/(D + 2) So 240 = (240D + 0.5D^2 + D)/(D + 2) 240(D + 2) = (240D + 0.5D^2 + D) 240D + 480 = 240D + 0.5D^2 + D 48...

9 years ago

im lost also pls provide some background

9 years ago

try it - but I don't think i can see it maybe some of the others can see it

9 years ago

they're moving toward each other at 60 miles per hour - got it please clarify

9 years ago

the first card can be any probability = 1 the second card can be only the same rank probability = 3/51 1 * 3/51 = 3/51

9 years ago

Outset: 1 liter juice + 18 liters water = 19 liters Conclusion: 18 liters juice (54/3) x = 18 - 1 = 17

9 years ago

1) A works 2) not D

9 years ago

they're the same just two ways to think about it!

9 years ago

FAQ - acronym An acronym is an abbreviation pronounced as a word which is formed from the initial components in a phrase or a word. Usually these components are individual letters (as in NATO or laser) or parts of words or names (as in Benelux).

9 years ago

that's reasonable then IBM is not an acronym since no one says "ibem"!

9 years ago

convert vector from polar to rectangular form horiz: 61.63 m/s vert: 28.74 m/s t = 50/61.63 = 0.81 s to impact what is the height of the balloon after that time?

9 years ago

(x - 54) + 2x = 180

9 years ago

81 / 9 = 9 so 4 * 9 = 36

9 years ago

sqrt(25) = 5

9 years ago

so you're the designated answer getter? wow that's a big responsibility! for one thing, the IR was about manufacturing and shipping so we could then later use that knowledge to in the manufacture and shipping of newer technologies also, the IR created a d...

9 years ago

welcome

9 years ago

I think of it this way: you have a velocity vector at an elevation of 25 degrees and a magnitude of 68 the base (start point) of the vector is at ground level, i.e., the launcher is not elevated the two velocities (H and V) coexist upon firing the H veloc...

9 years ago

not a prob

9 years ago

try 20 divided by 1/4

9 years ago

you're quite welcome

9 years ago

there is no question here ??

9 years ago

A) put the value 6 into the equation everywhere you see an n B) calculate f(6) = 6^6 + 31(6)^4 + 26(6)^3 + 20(6)^2 + (-33)(6) - 20

9 years ago

start here: build and populate a table with the begin and end dates for each sign populate the table with a message for each sign (be nice) prompt the user for date of birth you could also either prompt for day of birth (if needed) or your program could d...

9 years ago

Chris - I answered this a few days back. Be sure to check my work for errors. ________ "ship passes lighthouse" tells me that the ship (at that instant) is on a straight line that is perpendicular to the shoreline and 10km from the lighthouse, moving para...

9 years ago

pool area = 9 * 3 = 27 total area = 27 + 253 = 280 so (2w + 9) * (2w + 3) = 280 4w^2 + 6w + 18w + 27 = 280

9 years ago