Answer:
Like terms
Same number of equations as unkowns
Step-by-step explanation:
To add linear equations you need the amount of equations to match the number of unknowns.
The equations must have like terms.
All like terms will be added to each other and might even cancel out and solve one term if equal terms have opposite signs.
Answer:
5 Months start with"J" or "M"
January March May June July
So the probability of a randomly selected month beginning with J or M is
5 / 12
Step-by-step explanation:
Their rectangle can be 5 yards by 1 yard (because 5+5+1+1=12). The advantages to this is that they can use their entire 12 square yards. A disadvantage is that it is very long one, but not the other.
<span>2b - 3 = 13 So it will be 8 .So her brother is 8</span>
Answer:
72ft²
Step-by-step explanation:
Calculate the area of each face and then sum them.
area of base = 4 × 5 = 20 ft²
area of back = 5 × 3 = 15 ft²
area of sloping face = 5 × 5 = 25 ft²
area of 2 triangular faces = 2 × × 4 × 3 = 4 × 3 = 12 ft²
Thus
surface area = 20 + 15 + 25 + 12 = 72 ft²