Answer:
x=10, y = -20
Step-by-step explanation:
y = –5x + 30
x = 10
Substitute the second equation into the first
y = –5*10 + 30
y = -50 +30
y = -20
x=10, y = -20
Answer:
384 is surface area 512 is volume
Step-by-step explanation:
8 x 8 is 64 and there are 6 sides so 64 times 6 is 384
Volume formula is side x side x side so 8 x 8 x 8 which is 512
Calculate volumes
v=lwh
vinitial=6*5*5=150
vnew=6*15*15=1350
new/initial=1350/150=9
9 times