Answer:
Let the truck is driven X miles per day
Charges of company A will be = 90+0.4X
Charges of company B will be =30+0.7X
Let us find out value of X when charges of both companies are same
which means that 90+0.4 X= 30+0.7X
90-30 = 0.7X-0.4X
60 = 0.3X
60/0.3 = X
X= 200
The charges of both companies will be same if truck is driven 200 miles per day
Company A will have better deal if truck is driven more than 200 miles per day ( because per mile rate of company A is less than company B)
Step-by-step explanation:
Answer:
48 + 18√13 cm²
Step-by-step explanation:
HC = BC/2 = 4m/2 = 2 m
AC = √AH² + HC² = √9 + 4 = √13
A = 2×A(ABC) + 2×A(ACFD) + A(BCFE)
= 2×AH×BC/2 + 2×AC×CF + BC×CF
= 2×3×4/2 + 2×√13×9 + 4×9
=12 + 18√13 + 36
= 48 + 18√13 cm²
Answer: n = -4
Step-by-step explanation:
First distribute.
2 + 8n = 6n + 6 + 3n
Then combine like terms.
2 + 8n = 9n + 6
Then move the 2 to the other side.
2 - 2 + 8n = 9n + 6 - 2
Then subtract.
8n = 9n + 4
Then move the 9n to the other side.
8n - 9n = 9n - 9n + 4
Then subtract.
-n = 4
Then make n positive by multiplying by -1.
n = -4
You miles in a car is 32miles
Answer:
You S,tupid
Step-by-step explanation: