1) x*y=315 2) x+y=52 from 2, x=52-y, put into 1, y*(52-y) = 315 or y^2-52*y+315=0 delta= (-52)^2-4*1*315=1444 = 38^2 y = (52-38)/2 = 7 or y = (52+38)/2 = 45 then x = 45 or x = 45
x+y=154x+3y=384x+4y=604x+3y=38(4x+4y=60)-(4x+3y=38)-->(4x-4x+4y-3y=60-38)-->(0x+1y=22)-->[since 0x=0](1y[y]=22)given y=22and x+y=15x+22=15x=15-22=-7therefore ANSWER KEYX=-7 Y=22Checking answers4x+3y=38-28+66=38THEREFOREThis is correctIf you have problems please write a message on Its Me Ue's message board
32
a) x+y = 100 b) x-y = 24 a+b: x+x+y-y=100+24 2x=124 x=62 substitute x=62 into equation a) y=100-62 y=38 the two numbers are 38 and 62
-38
a letter.
y=x x=38
You're looking for factors of 38 that have a difference of 17. Luckily, 38 only has two factor pairs. It's not 38 and 1. (y - 2)(y + 19)
treinta y ochoi
1. (1/10)x=(1/9)y --> 2. (1/10)x/(1/9)=y --> 3. (9/10x)=y 4. Plug into other equation.x+y=38 4. x+9/10x=38 ----> 5. 1.9x=38 --> 6. x=20 7. Plug x into one of the original equaitons.7. 20+y=38 --> 8. y=18x=20,y=18
Y Venugopal Reddy
Slope intercept form is of the form y = mx + c -x + 19y = 38 → 19y = x + 38 → y = 1/19 x + 2 (or y = x/19 + 2)
1) x*y=315 2) x+y=52 from 2, x=52-y, put into 1, y*(52-y) = 315 or y^2-52*y+315=0 delta= (-52)^2-4*1*315=1444 = 38^2 y = (52-38)/2 = 7 or y = (52+38)/2 = 45 then x = 45 or x = 45
if y = 29 then 12+y = 41
1st August 527 to the 14th November 565, 38 years 105 days
treinta y ochoi
38 weeks before Thursday, October 7th, 2010 = Thursday, January 14th, 2010.