<span>2(y-1)+8
=2y - 2 + 8
=2y + 6
hope that helps</span>
Answer: 10
Explanation: the radius is always half of the diameter.
Answer:
x = 8.4
y = -2
Step-by-step explanation:
Step 1: Sub y=-2 into y=5x + 40
-2 = 5x + 40
Step 2: Solve for 'x'
-2 = 5x +40
-42 = 5x
x = 42/5
x = 8.4
Step 3: Solve for 'y'
y is given in the question, y=-2
If M is the midpoint of PQ, then PM and MQ are equal.
As PM and MQ are given, equal them to each other to solve for x.
7x+8 = 5x+20
subtract 5x on both sides to get 2x+8 = 20
subtract 8 on both sides to get 2x = 12
divide by 2 on both sides to get x = 6
Use the value of x = 6 and plug it into the equations for PM and MQ to find their value.
PM = 7x + 8
= 7(6) + 8 = 42 + 8 = 50
(You can already tell MQ is also 50 as PM and MQ are equal, but we will still solve for MQ just for the fun of it)
MQ = 5x + 20
= 5(6) + 20 = 30 + 20 = 50
PM = 50
MQ = 50
PQ = PM + MQ = 50 + 50 = 100
Hope this helped!
Responder:
$ 750
Explicación paso a paso:
Dado que :
Descuento en todos los artículos = 20%
Descuento adicional dado = 15%
Monto final pagado por la camisa = $ 510
Precio de la camiseta sin descuento:
Sea el precio inicial de la camisa = x
Primer descuento obtenido = 20%
Precio pagado después de un descuento adicional del 15%
Primer descuento:
(1 - 0,20) * x = 0,8x
Segundo descuento:
(1 - 0,15) * 0,8x = 510
0,85 * 0,8x = 510
0,68x = 510
x = 510 / 0,68
x = $ 750