Pecans cost $2.70 per kilogram. cashews
cost $2.50 per kilogram. the number of
kilograms of pecans is one more than the
number of kilograms of cashews. how many
kilograms of cashews are needed to make a
bag to sell at $28.70?

12kg

Step-by-step explanation:

$28.70 / $2.50 = 11.48kg —> 12kg

5 Kg

Step-by-step explanation:

Let:

The number of kilograms of pecan is x

The number of kilograms of cashew is y

2.7x + 2.5y = 28.7 Equation 1

x = y - 1 Equation 2

Put the values of y  

2.7(y - 1) + 2.5y = 28.7

2.7y + 2.7 + 2.5y = 28.7

5.2y = 26

y = 5 kg

26

step-by-step explanation:

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.