w is william, c is charmaine
w = c + 3
3c + 2w = 76
substitute c + 3 for w
3c +2(c + 3) =76
3c + 2c + 6 = 76, combine the c's and subtract 6 from both sides
5c = 70
c = 14
w = c + 3
so w = 14 + 3
w = 17
Answer: D: 242m³
Step-by-step explanation:
Well, 9x5=45 and if you calculate that in cubic meters i believe it would be 243m³ (I'm in 7th grade...=/) HAPPY EARLY VALENTINES DAY! HOPE YOU GET THIS RIGHT! =D
Answer:
D: 11
Step-by-step explanation:
mark brainliest
(x + a) (x + b) = x² + (a + b) x + ab
75 * 77=
=(70+5)(70+7)
=70²+(5+7)*70+5*7
=4900+12*70+35
=4900+840+35
=5775
10-6v+9v=28
10+3v=28
-10 -10
3v=18
3 3
v=6