Answer:
x = 5, y = 20
Step-by-step explanation:
if y = 4x and 3x+2y = 55 then we can subtitude y as x.
We know that y = 4x so we can write 4x wherever we see y.
3x + 2y = 3x + 2(4x) = 55
3x + 8x = 55
11x = 55
x = 5.
And if y = 4x = 4(5)
y = 20
30% times 450 = 135
450 - 135 = 315
The leather jacket will now cost her $315.00. This discount is called a sale. Brainliest please? It would be greatly appreciated! =D
Answer:
<h2>Yes</h2>
Step-by-step explanation:
To check a proportion, we use cross multiplication.
Cross multiply.
1 x 30 = 6 x 5
30 = 30 ✔
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