Answer:
D
Step-by-step explanation:
Given the 2 equations
4x - 5y = 18 → (1)
3x - 2y = 10 → (2)
Multiplying (1) by 3 and (2) by - 4, then adding will eliminate the x- term
12x - 15y = 54 → (3)
- 12x + 8y = - 40 → (4)
Add (3) and (4) term by term to eliminate x, that is
- 7y = 14 ( divide both sides by - 7 )
y = - 2
Substitute y = - 2 into either of the 2 equations and solve for x
Substituting into (1)
4x - 5(- 2) = 18
4x + 10 = 18 ( subtract 10 from both sides )
4x = 8 ( divide both sides by 4 )
x = 2
solution is (2, - 2 ) → D
Answer:
yo yo use math_way its very helpful fast and ez to use
Step-by-step explanation:
without the "_"
About $0.75 per person.
First, let’s find the cost for each portion of hamburger meat and the cost for each bun.
We can do this for the meat by doing 1.49/4 to get 0.3725.
Now we can do the same with the buns by doing 2.99/8 to get 0.37375.
Now just add these together. 0.3725+0.37375 is 0.74625, which can be rounded to $0.75.
The cost per person is approximately $0.75.
Please consider marking this answer as Brainliest to help me advance.
Answer:
Step-by-step explanation:
47.86
-25.20
+52.75
-22.04
-8.50
+94.11
=39.46
