Answer:
7+(5n)=45
n= 7.6
Step-by-step explanation:
Answer:
(- 3, - 2 )
Step-by-step explanation:
Given the 2 equations
- 2x + 5y = - 4 → (1)
3x + 4y = - 17 → (2)
Multiplying (1) by 3 and (2) by 2 and adding the result will eliminate x
- 6x + 15y = - 12 → (3)
6x + 8y = - 34 → (4)
Add (3) and (4) term by term
(- 6x + 6x) + (15y + 8y) = (- 12 - 34), that is
23y = - 46 ( divide both sides by 23 )
y = - 2
Substitute y = - 2 in either of the 2 equations.
Substituting in (2)
3x - 8 = - 17 ( add 8 to both sides )
3x = - 9 ( divide both sides by 3 )
x = - 3
Solution is (- 3, - 2 )
Answer:
First option: 
Step-by-step explanation:
The missing options are:

We know that "x" represents the number of weeks Bess worked and "y" the number of weeks Gina worked.
According to the data given in the exercise, Gina and Bess earn $45 per week for delivering flowers, this is:

Since earned an additional total bonus of $20, then the total money in in dollars that Bess and Gina earned for delivering flowers can be shown with the following expression:

Notice that this expression matches with the one shown in the first option.
Answer:
45 degrees
Step-by-step explanation:
Answer:
4 y = -4 x + 8 or y = -x + 2
y - x = -2 or y = x - 2
using the standard form for a line y = m x + b
We see that in one equation m = -1 and in the other m' = +1
this is the condition for perpendicular lines