Answer:
c = 34/d
d = 1/2
Step-by-step explanation:
Part A
Basic Formula
c = k/d
17 = k/2 Multiply both sides by 2
17*2 = k*2/2 Combine
34 = k
So the equation is c = 34/d
Part B
c = 68
k = 34
d = ?
68 = 34/d Multiply both sides by d
68*d = 34 * d/d Simplify.
68 d = 34 Divide by 68
d = 34/68 Simplify
d = 1/2
So we are given a system:

Substitute x = 2 we get the system:

Multiply the first equation by -5 and the second by 2 we get the system:

Adding the two equations we get :

We find the value of y by using any of the other equations like this:

Final solution:
Answer:
The value of P(z<1.00)=0.8413
Step-by-step explanation:
Using a standard normal table, the area under the standard normal curve below the given value of z=1 is:
z <u> .00</u> .01
0.9 0.81594 0.81859
<u>1.0</u> <u>0.84134</u> 0.84375
1.1 0.86433 0.86650
P(z<1.00)=0.84134
Rounded to 4 decimal paces
P(z<1.00)=0.8413