If Dave has 15 dollars and must spend 8 dollars of it on a book, then he will have 7 dollars left. If he then buys two of the same cards for his friends, the most he will be able to spend is half of 7 dollars for each of them, which will be 3 dollars and 50 cents.
You use elimination the get x=5 and then plug it in to get y=0 so the coordinate is (5,0)
B. x < -4
-2(3x + 6) > 4(x + 7)
-6x - 12 > 4x + 28
-10x > 40
X < -4
Answer:
Width = 4.85 feet
Length = 7.85 feet
Step-by-step explanation:
Given:
Perimeter of a rectangle = 25 2/5 ft = 25.4 feet
Length = 3 + Width
Computation:
Assume;
Width = a
So,
Length = 3 + a
Perimeter of a rectangle = 2(l + b)
25.4 = 2[(3 + a) + a]
25.4 = 2[3 + 2a]
25.4 = 6 + 4a
4a = 19.4
a = 4.85
Width = 4.85 feet
Length = 3 + 4.85
Length = 7.85 feet
Answer: s= 38
Step-by-step explanation:
S=8r+14 or S=8(3)+14
8 times 3 = 24 +14 = 38
