Step-by-step explanation:
la respuesta está en la imagen de arriba .si necesita ayuda, no dude en preguntar
Answer:
60
Step-by-step explanation:
the total games that Sara played =
14+18+28 = 60
(9 × 10) + (20x + 21) = 571
90 + 20x + 21 = 571
111 + 20x = 571
- 111
20x = 460
÷ 20
x = 23
I hope this helps!
Answer:
1) For each value of x, a value of y is increased by 5.
x = 0, y = 5
x = 1, y = 10
x = 2, y = 15
x = 3, y = 20
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2) For each two values of x, a value of y is increased by 10.
x = 0, y = -2
x = 2, y = 8
x = 4, y = 18
x = 6, y = 28
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3)
x = 0, y = 1
x = 1, y = 
x = 5, y = 3
x = 10, y = 5
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4)
x = 0, y = 2
x = 1, y = 17
x = 2, y = 32
x = 5, y = 77
Step-by-step explanation:
This is as easy as replacing x for the actual value show on the table.
1)

When x = 0, y = ?

When x = 1, y = ?

When x = 2, y = ?

When x = 3, y = ?

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2)

When x = 0, y = ?

When x = 2, y = ?

When x = 4, y = ?

When x = 6, y = ?

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3)

When x = 0, y = ?


When x = 1, y = ?


When x = 5, y = ?

When x = 10, y = ?

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4)

When x = 0, y = ?

When x = 1, y = ?

When x = 2, y = ?

When x = 5, y = ?

Answer:
The original price is 337.50
Step-by-step explanation:
If we get 20% off, we still have to pay 100-20 =80%
Let x be the original price
x *80% = 270
.80x = 270
Divide each side by .80
.80x/.80 = 270/.80
x =337.50
The original price is 337.50