Answer:
The question has a mistake
Step-by-step explanation:
11d+7c= 172.5
10d+7c= 155.8
By subtraction;
1d+ 0c = 16.7
1d = 16.7
11×16.7+7c=172.5
7c = 172.5-11*16.7
You will get a negative answer yet the cost cannot be negative.
Answer:
1/4 goes first
Step-by-step explanation:
3x-4y=10
-20-x+2y=10 then -30+2y=x now plug this in the other equation:
3(-30+2y)-4y=10
-90+6y-4y=10
2y=100
y=50
It's 12 because if you divide 36 by 3 (consecutive) it equals 12
Answer:
TU = 12
Step-by-step explanation:
Given
TU = x − 1
SU = 3x − 7
ST = x + 7
TU = ?
Then we can say that
SU = ST + TU
⇒ 3x − 7 = (x + 7) + (x − 1)
⇒ 3x − 7 = 2x + 6
⇒ x = 13
Finally, we get
TU = x − 1
⇒ TU = 13 - 1
⇒ TU = 12
Therefore,
ST = x + 7 = 13 + 7 = 20
SU = 3x − 7 = 3*(13) - 7 = 32