5.18
there’s more to the decimal but if you round it up that should be it, i’m so sorry if i’m wrong :(
I would use subsitution because both are already equal to a single variable
set both equal since both equal y
8x-9=y=4x-1
8x-9=4x-1
minus 4x both sides
4x-9=-1
add 9 boh sides
4x=10
divide by 4
x=10/4=5/2
sub for x
y=4x-1
y=4(10/4)-1
y=10-1
y=9
(5/2,9) is solution
A. work shown above
B. (5/2,9) or (2.5,9)
Answer: 8
Step-by-step explanation: Substituting x for 2 since we know the value, 4(2) is 8.
X is one angle
X+78 is the second angle
Add them together
2x+78=90
Subtract 78 from both sides
2x=12
X=6
One angle is 6 the other angle is 84
Answer:
27 pieces
Step-by-step explanation:
1) first, multiply 6 times 3 (6×3=18)
2) 1 ft = 12 in. so you multiply the 18 by 12 (18×12=216)
3) now you divide the 216 by 8 (216÷8=27)
