Answer:
B
Step-by-step explanation:
x + 3y = 7 → (1)
3x + 2y = 0 → (2)
Multiplying (1) by - 3 and adding to (2) will eliminate x
- 3x - 9y = - 21 → (3)
Add (2) and (3) term by term to eliminate x
0 - 7y = - 21
- 7y = - 21 ( divide both sides by - 7 )
y = 3
Substitute y = 3 into either of the 2 equations and solve for x
Substituting into (1)
x + 3(3) = 7
x + 9 = 7 ( subtract 9 from both sides )
x = - 2
solution is (- 2, 3 ) → B
The area of this figure is 81m^2.
Answer:
12,000 in sales
Step-by-step explanation:
$24/hour x 40 hours=960 salary
sales x commission rate =salary
sales x .08=960
sales =960/.08
sales=12,000
2r²+15r-50
hope this helps
Answer:
997
From right to left, the place values are, ones, tens, hundreds, thousands, etc.
