Answer:
1. cone 2. cube
Step-by-step explanation:
a cube has 6 equal sides, a cone has one round base.
Hello!
By using a certain formula, a repeating number with two repeating digits will always become the number out of 99. In our case, we would get 
.
To get the numerator to equal three, we divide both sides by 9.
Therefore, x=11.
I hope this helps!
Answer: 0.4
Step-by-step explanation:
⅕ + ⅕ = ⅖
Convert to decimal 0.4
Answer:
9b≥ -18
Step-by-step explanation:
Answer:
9 years old.
Step-by-step explanation:
Since the ages of all of these students are being represented in relation to the middle student's age then we can create formulas for each student and then apply them to the formula for the sum of their ages and solve for the middle child's age (M) like so... (oldest child's age is represented by variable O and youngest child's age is represented by variable Y)
O = M + 6
Y = M - 3
30 = (M+6) + M + (M-3) ... combine like terms
30 = 3M + 3 ... subtract 3 from both sides
27 = 3M ... divide both sides by 3
9 = M
Now we know that the middle child is 9 years old.
