Answer:
2.3lego
Step-by-step explanation:
We can walk through this problem using the cross multiplication method
First 3 1/2 lego is same as 3.5lego
Hence If
Johnny builds 3.5lego in 60min
He can build xlego in 40min
Crosss multiplying we have
Xlego *60= 3.5*40
Xlego= 140/60= 2.3lego
Answer:
MO = 17
Step-by-step explanation:
First, you need to define what if the unknown x.
segment MN and NO are equal to MO.
thus, your equation for the combination is x +8
Now set the values equal to each other
x + 8 = 3x - 10 (subtract x from both sides)
8 = 2x - 10 ( get your x value alone, add 10 to both sides)
18 = 2x (simplfy)
x = 9
Now plug x value into MO
3 (9) - 10 = 17
Check with opposing equation:
9 + 8 = 17 √
This problem is about componded interest. The formula for compounded interest is:

In this case, Initial = 300, r = 0.06 and t=10 so the total amount in the account after 10 years is:

The amount after 10 years is 573.26.
Step-by-step explanation:
Solve the bracket first. starting with multiplication and then subtraction
0.00035 + (4.2 x 10-5)
0.00035 + (42-5)
0.00035 + 37
0.01295