3400000 in scientific notation
Answer:
12
Step-by-step explanation:
d=rx2
Part (1):
8/z = 10/25 = 6/15
This can be simplified as:
8/z = 2/5
Use cross multiplication as follows:
8*5 = 2*z
40 = 2z
z = 40/2 = 20
Part (2):
<span>12/36 = 14/42 = 8/t
This can be simplified into:
8/t = 1/3
Use cross multiplication as follows:
3*8 = t*1
t = 24</span>
Answer:
15.5
Step-by-step explanation:
Step 1: Find the value of one variable in terms of the other.

Step 2: Substitute the value you just found for this variable in the other equation.

Step 3: Use your new value for the second variable to find the first.

Now that we know the values for a and b we can find the value of 4a+b.