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Posts: 2605

Massive karma will be given if you can answer and show work for any of these.

Posts: 2564

fucking numbers, what grade is this? I dont understand this

Posts: 1042

the amount of time it took you to scan your math homework on to your computer, upload them to the internet and then post in a thread, you probably could have done at least 2 problems.

Posts: 4887

he dosnt know how to do them though…also wtf is this shit.

Posts: 2605

i did one.

Posts: 3169

Iowa Math.... always about farm animals.

Posts: 771

#2 might be 13.9m^2, although there's a possibility I did that wrong. I assumed the 15m goat reaching distance was split evenly between the angles so I used trig to find the height of that small triangle. There's 2 heights of the small triangle and we need to find diameter first so I did 2x + Diameter = height of whole triangle, where x= the height of the small triangle. Not certain with this but the process I did makes sense to me.

Posts: 4285

the answer to #1 is 6 sheep and 8 horses. I set up 3 3 variable equations based on ratios. they were as follows:

h-s=1x

h+s=7x

hs = 24x

solving those three equations for s gave me the answer.

boston schools ftw

Posts: 4285

for the last problem set up the three equations:

a+b+c = 70

a^2 + b^2 + c^2 = 1682

a^2 + b^2 = c^2

solve the three variable equation from there. Its not my job nor do I feel like trinomial expansion considering I have an english exam tomorrow.

All these problems are pretty straightforward with a shitload of calculations.

Posts: 771

Oops, forgot my 30-60-90s so that number's wrong; but still the same process used.

Posts: 3441

im only in algebra 1 honors

Posts: 4784

who the fuck cares

Posts: 2605

up

Posts: 973

Perimeter = 20.5 + 20.5 + 29 = 70 cm

Sum of squares = 420.25 + 420.25 + 841 = 1681.5

work:

1 + 1 + sqrt(2) = 3.414213562

70/3.414213562 = 20.50252532cm (or the exact length of two sides)

sqrt(2) * 20.50252532 = 28.99494937cm (or the exact length of the third side)

Posts: 4285

this is a shortcut gypsy way to solve the problem and most likely wrong because it does not have to be an isosceles right triangle.

Posts: 973

Let's say the tank is 60L; therefore, 6L/hour pumped in (i.e., 60L/10hrs) and 5L/hour pumped out (60L/12hrs).

After 3 hours, we'd have 18L pumped in, but 15L pumped out - for a net of 3L.

57L would take 9.5 hours to fill (i.e., 57/6 = 9.5)

Answer: 9.5 hours

Posts: 973

my answer is right, bro. shit doesn't have to be an isosceles triangle (maybe, maybe not), but it works out that way.

Posts: 973

Alloy A = 1/4 copper

Alloy B = 1/6 copper

Need to obtain: 2/9 copper

X(1/4) + (1-X)(1/6) = 2/9

(1/4)x + 1/6 - (1/6)x = 2/9

(1/12)x = 1/18

x = 2/3

25lbs/(2/3) = 37.5lbs

37.5lbs - 25lbs = 12.5lbs

Answer: 12.5lbs of Alloy B

Posts: 6511

Posts: 2605

K to all

Posts: 1028

can't be arsed to do it right now but for the second one the area of which the goats can graze on inside the triangle is = (60/360)xPi(15)^2 (x3)

then just calculate the area of the triangle which is: 1/2 base x height

(30^2) -(15^2)= then square root the answer= Height

Base=30

then subtract the area the goats can graze on from the triangle

et voila

Posts: 2605

up

Posts: 2605

thanks a ton.

Due tomorrow still need correct 1 and 3. To The guy above i dont know what u did for 1.

Due tomorrow still need correct 1 and 3. To The guy above i dont know what u did for 1.

Posts: 2605

up

Posts: 6767

have you got them all?

Posts: 743

So don't miss this shit!

Posts: 2739

lol high school

Posts: 2605

need 1 + 3

Posts: 191

fuck math get bitches

Posts: 623

Answer to #1 is 6 sheep.

Posts: 5100

as a math teacher, this saddens me to see.

Posts: 2605

Why they are extra credit problems that I'm too lazy to figure out by myself

Posts: 10356

That's the point, you dummy, he's sad that you're not loving your math!

I can't believe I'm helping you with this shit.

**Question One:**

Let x = # horses and y = # sheep.

You can set up two equations with the information given:

7(x-y) = x+y

24(x+y) = 7(xy)

Two equations, two unknowns, solve it yourself.

I can't believe I'm helping you with this shit.

Let x = # horses and y = # sheep.

You can set up two equations with the information given:

7(x-y) = x+y

24(x+y) = 7(xy)

Two equations, two unknowns, solve it yourself.

Posts: 10356

Let the shares of the 5 recipients be denoted as a, b, c, d, and e, respectively, where a gets the most bread and e gets the least. You know from the question that:

a + b + c + d + e = 100

and that 1/7(a + b + c) = d + e

However you don't care about this, you need the value of the difference between them. This question says that the difference between these values is a constant (I'm assuming that's what arithmetic means). That being said you can express both these equations in terms of two variables: e and the difference between the bread amounts, x.

e = e

d = e + x

c = e + 2x

b = e + 3x

a = e + 4x (because a is the most bread)

Thus you can derive that

a + b + c + d + e = 100 = 5e + 10x

and

1/7(3e + 9x) = 2e + x

Two equations, two unknowns, solve it yourself.

Posts: 10356

Boston schools fail, you should only have 2 variables. I don't know if that's the right answer or not, but you shouldn't have 3 variables. It's only horses and sheep.

Posts: 2605

I like math just i need the points so i need the answers to be right.

Posts: 10356

I'm pretty sure I did them right. I better have, although its been a solid 4 years since algebra two

Posts: 2605

thanks i gave you k+.

The funny thing is that I'm at the number one high school in the state and in the honors class and i still don't do it. The American education system...................

The funny thing is that I'm at the number one high school in the state and in the honors class and i still don't do it. The American education system...................

Posts: 2605

forgot let this thread die

Posts: 2605

answer 25?

Posts: 2605

55/6?

Posts: 2605

nevermind 6

Posts: 10356

No, you need two numbers. The number of horses is 8. The number of sheep is 6.

7x - 7y = x+y

6x = 8y

3/4(x)=y

24x+24y = 7xy

24x + 24(3/4(x)) = 7x(3/4(x))

42x = 21/4(x^2)

6x = 3/4(x^2)

(assume x does not equal 0 and divide by x)

6 = 3/4x -> number of sheep

x = 8 -> number of horses.

7x - 7y = x+y

6x = 8y

3/4(x)=y

24x+24y = 7xy

24x + 24(3/4(x)) = 7x(3/4(x))

42x = 21/4(x^2)

6x = 3/4(x^2)

(assume x does not equal 0 and divide by x)

6 = 3/4x -> number of sheep

x = 8 -> number of horses.

Posts: 10356

This is correct. It doesn't seem right but I did it out and googled it. If your teacher is going to give you "famous" math problems he/she should think again before referencing them right in the problem. Super easy to verify.

Posts: 2605

Again thanks for the help I totally forgot how to solve linear systems. And yea she's not the brightest. This is the difference between a 3.81 and a 4 thanks .

Posts: 6767

I can't beleive you just got your whole assignment done on NS. I just finished my homework and was gonna do them for you but they are all done!

Posts: 2605

i wasn't expecting it either. But it worked. I gave you karma.

Posts: 10356

It's because people like me are losers and too unmotivated to do our own work. I like math problems anyway though...

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