The answer if less you mean subtraction is 3d2 + d + 1
Answer:
x>7
Step-by-step explanation:
-9x + 4 + 12 + 18x >79
9x+16>79
9x>79 - 16
9x > 63
x>7
Answer:
B, you're correct
Step-by-step explanation:
1/6+1/6+1/6+1/6+1/6+1/6+1/6+1/6+1/6= 1 3/6 = 1 1/2
1+3/6= 1 1/2
A) adds up to 2.5, but the fraction model adds up to 1.5
C) adds up to 1, but the fraction model adds up to 1.5
D) adds up to 7/6, but the fraction model adds up to 1.5
Answer:
D
Step-by-step explanation:
Let's call the width of the yard x and the length x + 3½. Since we know that perimeter = 2 * (width + length) and that the perimeter must be 26 we can write:
2 * (x + x + 3½) = 26
x + x + 3½ = 13
2x + 3½ = 13
2x = 9½
x = 4