Answer:
a > 8
Step-by-step explanation:
a-3>5
Add 3 to each side
a-3+3>5+3
a > 8
Lets Anna's age = A
Mr. Goldstein age = G
Mr. Goldstein is 4 times as old as his daughter Anna.
So G= 4A
In 4 years, he will be 3 times as old as Anna
we add 4 with Both their ages
G + 4 = three times of A + 4
G + 4= 3(A + 4)
We know G= 4A, replace it in above equation
4A + 4= 3(A + 4)
4A + 4= 3A + 12
Subtract 3A from both sides
A + 4 = 12
Subtract 4 from both sides
A = 8
So Anna's age = 8 years
Answer:
1 and 4/35
Step-by-step explanation:
Use distribution property to solve:
6/5 × -5/7 -3/4 -5/7 × 4/5 = -5/7 ( 6/5 - 3/4 ) x 4/5 = -5/7 ( 24/20 - 15/20 ) x 4/5 = -5/7 (-39/20) x 4/5 = 780 / 700 = 1 4/35
9 is the standard deviation in this problem. The mean iq score is 93.
This meant that his IQ score is 93+9*3=93+27=120 :) also this john person is really smart im jealous :(
Answer:
See below ~
Step-by-step explanation:
Finding the distance of each side length :
- AB = √(3 - 0)² + (0 - 4)² = √9 + 16 = √25 = 5
- BC = √(7 - 3)² + (3 - 0)² = √16 + 9 = 5
- CD = √(4 - 7)² + (7 - 3)² = √9 + 16 = 5
- DA = √(4 - 0)² + (7 - 4)² = √16 + 9 = 5
- All sides are equal
- Hence, it is a square
Perimeter :
- 4 x side length
- 4 x 5
- 20 units
Area :
- (side length)²
- (5)²
- 25 square units
