gpercuxionz:
Good day everyone pls I need help to the question 25. Thanks

Angelan97:
Hi, can someone help me with this one:

To cover a distance of 10km, a girl runs some of the way at 15km/h and walks the rest of the way at 5km/h. Her total time of journey is 1hour. A) if the distance walked is x km find a simple expession for the distance run. B) Derive an equation involving x and use it to find the distance walked?

meekmill:
Guys help me out

Umartins1:
Here

GeniusDavid:
If 47% of the people in a community voted in a local election and 75% voted in a federal election, what is the least percentage that voted in both?

Umartins1:


45-x+75-x+x=100

120-x=100

x = 120-100

x= 20

Youngsage:

x + y =5 -------- eqn i.
x^x + y^y=31 ----- eqn ii.
From equatns i & ii, take the log of both sides
(xlog^x + ylog^y) = log 31------ eqn iii.
log(x+y) = log 5 ------------ eqn iv.
xylogxy= log 31 -------- eqn v.
log xy = log 5 --------- eqn vi.
(Using elimination method);
xylog5 = log31
xy = log 31/log 5 =6.2 approx. 6.

Recall, from eqn i, x + y = 5.
So x = 6/y or y = 6/x.
Therefore x=2 when y=3.
ans: x=2, and y=3.

Youngsage:

x + y =5 -------- eqn i.
x^x + y^y=31 ----- eqn ii.
From equatns i & ii, take the log of both sides
(xlog^x + ylog^y) = log 31------ eqn iii.
log(x+y) = log 5 ------------ eqn iv.
xylogxy= log 31 -------- eqn v.
log xy = log 5 --------- eqn vi.
(Using elimination method);
xylog5 = log31
xy = log 31/log 5 =6.2 approx. 6.

Recall, from eqn i, x + y = 5.
So x = 6/y or y = 6/x.
Therefore x=2 when y=3.
ans: x=2, and y=3.

tobillionaire:
pls I nid help on d working of this

find d integral of √tanx

Mechanics96:
This solution is wrong sir; u don't take the log of x^x+y^y as xlog^x +ylog^y, and neither do you say xlogx+ ylogy. It should be log(x^x+y^y). These two are not the same.

Simple test ; log3+log7 is never equal to log (3+7)

Also log31/log5 is not 6.2 but 2.13...




Let's get something clear on this question. It is only an IQ test, no maths rule supports the solution, yet the solution is crystal clear.
There are many of such questions, the tricks for hacking the solution is thought in numerology.
For example; if the sum of two numbers that have themselves as powers is a prime number then the numbers must be prime or one prime one even. x^x+y^y=31, x and y are both prime, one of them is even.

Not classroom mathematics...

jojokings:
Please I need help regarding my junior sisters maths problem, she has written maths in weac 4 times now yet the highest she got was D7. Who can assist for her to obtain her papers in one sittings. Anyhow that is possible. Am ready for her to secure university admission to study accounting. Preferable if your withing Abuja and environment. Call my number let's discuss. 08036568875

jerome263:


I have a friend who is well gifted in mathematics.... he is currently studying mathematics in Uniben..........quote me if you need his number....

jojokings:


So how could he be if help?

Red2C:
No. 22 pls

Aybalance:
pls i need help on this... ........nP3+nC4=6.find n