8. The specimen of copper wirer drawn from a large lot have the pollowing breaking strongth (in kg weight] 578,572, 570, 568,572,578,570, 572,598, 544 , Test whether the mean breaking strength of the lot may be taken to be 578 kg weight at 5% level of significance

so what is the question

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.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.