Answer:
144cm²
Step-by-step explanation:
Area of square A Aa = La²
Area of square B Ab= Lb²
If the length of each side of square B is 4cm greater than the length of each side of square A, then;
Lb = La + 4 ... 1
Also if the area of square B is 70cm² greater than the area of square A, then;
Ab = Aa + 70
Since Aa = La² and Ab = Lb²
Lb² = La² + 70 ...2
Substitute 1 into 2;
(La+4)² = La²+70
Expand
La²+8La+16 = La²+80
8La+16 = 80
8La = 80 - 16
8La = 64
La = 64/8
La = 8cm
Since Lb = La + 4
Lb = 8 + 4
Lb = 12cm
Area of square B = Lb²
Area of square B = 12²
Area of square B = 144cm²
I think 8.4 is a rational number
24 yrs, might not be the answer
3%=0.03 you have to get to 6%=0.06
So you find the value of each month in 3%
So 3% divided by 12 months = 0.0025
Now you have the value of each month MULTIPLY until you get 0.06
So: 0.0025 x 1, 2, 3, 4,…….. and so forth
So the your result will be
0.0025per months x 24yrs = 0.06 = 6%
24 years
Subtract 4 from both sides. You'll get 8x = 28. Solving for x, x = 28/8 = 7/2
Answer:
300
Step-by-step explanation:
if you mean, 245.320
