Answer:
1 solution --> y=-13/2
Step-by-step explanation:
7(y+3)=5y+8
7y +21=5y+8
2y=8-21
2y=-13
y=-13/2
It’s the previous number times 4
Answer:
Total cooking time = 20t + 15
The expression 15t + 20 is wrong.
Step-by-step explanation:
weight of chicken = t lbs
cook time per lb = 20 minutes
This means that:
1 lb weight requires a cooking time of 20 minutes
1 lb = 20 minutes
∴ t lbs = 20 × t = 20t minutes.
We were also told that each chicken required an extra cooking time of 15 minutes, in addition to the total cooking time due to the weight. Therefore, the total cooking time is calculated thus:
Total cooking time = cooking time due to weight + 15 minutes
Total cooking time = 20t + 15
Hence the expression 15t + 20 is wrong, due to the explanation given above.
Given:
Q is between P and R, R is between Q and S, 
.
To prove:
Solution:
The two column proof is:
Statements Reasons
1. Q is between P and R 1. Given
2. 
2. Segment addition postulate
3. R is between Q and S 3. Given
4. 
4. Segment addition postulate
5. 5. Given
6. 
6. Substituting property of equality
7. 
7. Subtraction property of equality
8. 8. Simplify
Hence proved.
