for the system of equations
the three matrices needed to use Cramer's Rule are:
.
To use Cramer's Rule we have to calculate the three determinants listed below of the matrices listed below.
.
The value of the determinants are shown below.
The value of y is .
Answer: 32 hours
Step-by-step explanation: 51/6 = 8.5
So, Erica makes 8.5 dollars per hour. 272/8.5 = 32. Thus, Erica will need 32 hours.
Brainliest?
Answer:
7(x4) = 8-x
Step-by-step explanation:
Answer: 200 hats in total
Steps:
x * .4 = 80
x = 80/.4
x = 200
Check:
200 * .4 = 80
80 = 80 ✅