Por el gasto de 90 euros en una compra realizada en un supermercado nos han desconectado el 5 por ciento gracias a un bono.¿cuánto dinero nos han descontado?

Responder:

4,5 euros

Explicación paso a paso:

Dado que:

Importe total gastado = 90 euros

Descuento ofrecido en la compra = 5%

El monto deducido de la compra debido al descuento es:

5% del total. Cantidad gastada

5% de 90 euros

0.05 * 90

= 4,5 euros

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.