Answer:
11
21
or.....
2?!?!
Step-by-step explanation:
!!!!!!!!!
5(n-10)=40 is the equation
5n-50=40 solve for n
5n = 90
n =18
hope this helps . give me brainliest id appreciate it !
(33/10)+(14/5)+(17/5)+(21/10) (after taking L.C.M. of denominators)
=(33+28+34+21)/10
=116/10(simplfy it)
=58/5
Answer:
9
Step-by-step explanation:
7r+18=r²
r²-7r-18=0
factorizing
r²+2r-9r-18=0
r(r+2)-9(r+2=0
(r-9)(r+2)=0
r-9=0
r=9
check
(r²)=(9*9)=81
7r+18=7(9) + 8=81
Answer:
7 = 49.....
Step-by-step explanation:
7 * 7. = 49
ok....
thanks
