Answer:
22
Step-by-step explanation:
5(2x-3)=60
2x-3=12
2x=12+3
2x=15
x=15/2
The starting length of the strip is 10cm
he cuts the first piece (4cm):10-4=6
that means there's 6cm left
he cuts the second piece (3cm):6-3=3
that means there's 3cm left
the answer is the third piece is 3cm long
Answer:
Step-by-step explanation:
3x+4y=−23.........(1)
x=3y+1 .........(2)
Putting (2) in (1)
3(3y + 1) + 4y = -23
9y + 3 + 4y = -23
9y + 4y = -23 - 3
13y = -26
y = -26/13
y = -2
Putting y into (2)
x=3y+1
x = 3(-2) + 1
x = -6 + 1
x = -5
Answer:
10 hours.
Step-by-step explanation:
t=58-18.
t=40÷4.
t=10
