Hello!
You can put y into one of the equations
4x - 21 = -5x + 24
Add 5x to both sides
9x - 21 = 24
Add 21 to both sides
9x = 45
Divide both sides by 9
x = 5
You can now put x into one of the original equations
y = 4(5) - 21
y = 20 - 21
y = -1
The answer are x = 5 and y = -1
Hope this helps!
Answer:
transformation
Step-by-step explanation:
Answer:
c(10)=40
c(15)=52.5
Step-by-step explanation:
c(10) means you plug 10 into your x same with (c15) you plug in 15 so for c(10) it would be 2.5(10) + 15 which is 40
∠A=8x+6 ∘ start color #11accd, angle, A, end color #11accd, equals, start color #11accd, 8, x, plus, 6, degrees, end color #11ac
zvonat [6]
Answer:
Step-by-step explanation:
Given
Require
Determine x and <B
Missing in the question: A and B are vertical angles
For vertical angles A and B,
Substitute values for A and B
Collect Like Terms
Solve for x
To solve for B, substitute 8 for x in
9514 1404 393
Answer:
$181.19
Step-by-step explanation:
The coupon means you will pay 70% of the bill. The tax means you will pay 105.65% of the amount after the coupon is applied. Your final bill is ...
$245 × 0.70 × 1.0565 ≈ $181.19
_____
Your bill after the coupon is applied will be ...
bill - 0.30×bill = bill(1 - 0.30) = bill×0.70
The amount after tax is added is ...
charge + 0.0565×charge = charge(1 +0.0565) = charge×1.0565
Since the final bill is the product of these factors, the order of application does not matter. Conventionally, tax is applied last, so that accounting with the tax collection authority is properly maintained.
