I have 5 question left on my homework sheet which is do tonight. My little girl is not allowing me much time to get the work done. Can you guys please help. I have to show all work.
shoot.....
questions?
Eric is five years older than his sister Lisa, while Shawn is two years younger the Lisa. Write an expression for the sum of their ages.
3x-5/2=-1/4
0.3(4x+5)-1.7(x-4)=6.8
let Lisa's age = x years then Eric's age = (x + 5) years and Shawn's age = (x - 2) years sum of their ages = x + (x+5) + (x-2) = 3x + 3
Next pls...
L=2b{3}/a find L when a=6 and b=3
substitute the values in the given equation 2*3{3} 18 L = ------- = ----- = 3 6 6
next....
v=1/3pier{2}h solve for h
{2} --- is it "raised to power 2" ???? and was {3} in previous question "raised to power 3" ???
Was previous question as follows ??? \[L=2b ^{3}/a\]
and last question\[V=1/3*\pi*r ^{2}*h\]
pls clarify...
Sorry little one demands attewntion Yes they are raised to the 2 and 3 power as you have
we use the carat sing^ to indicate power so x raised to power five is shown as x^5 pls use the same convention to avoid confusion n mistakes.. so I send the correct solution for the previous one....... and then for the latest one....
L=2b^3/a find L when a=6 and b=3 2*3^3 2*27 54 L = ------ = ------ = ------ = 9 6 6 6
v=1/3pier{2}h solve for h π * r^2 * h V = ----------- 3 3V = π * r^2 * h 3V ------- = h π * r^2
next pls.... if u hv to show raised to power, use the sign "^" to indicate power...
3x-5-2=-1/4
I am lost on the question with pie
3x - 7 = -1/4 multiply both sides by 4 (this is done to cancel out the 4 in the denominator of -1/4) 4(3x - 7) = 4(-1/4) 12x - 28 = -1 12x = -1 + 28 x = 27/12
what hv u not understood in the previous question with π in it ????
None of it
do u hv a SKYPE account as this will be easier to explain if v can hv a voice chat my SKYPE id is hakki.singh
And the other question I plued in wrong it should have been 3x-5/2=-1/4 I would first need to find the LCD right which is 4 and then muliply the left side by 2 and get 6x-10/4=-1/4
the simpler method is as follows:..... 3x-5/2=-1/4 5 -1 3x - ------ = ------ 2 4 Here 4 is multiple of 2, so multiply both sides by 4 (means multiply all terms by 4) 5 -1 4(3x) - 4*----- = 4*----- 2 4 u get 12x - 10 = -1 (you hv got rid of both denominators and no need to find LCD !!!!) 12x = -1 + 10 x = 9/12 x = 3/4
I do not have a skype account
Join our real-time social learning platform and learn together with your friends!