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4 years ago

1) Solve for x. x+23=−22 2) Solve for a. a+(−1.3)=−4.5

Mathematics

2 answers:

8090 [49]4 years ago

6 0

X+23=-22
-23 -23

x=-45

a+(-1.3)=-4.5

or

a-1.3+-4.5
+1.3 +1.3

a=3.2

Sphinxa [80]4 years ago

3 0

1 ) x 23 = -22

equals: x = -45

2 ) a + (-1.3) = 4.5

equals: a = -3.2

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3 years ago

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Let 45% of 40 = 18% of x .

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3 years ago

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4 years ago

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4vir4ik [10]

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2 years ago

Read 2 more answers

Twenty five individuals are randomly selected out of 100 shoppers leaving a local bedding store. Each shopper was asked if they

Vaselesa [24]

we have 25 individuals that are randomly selected out of 100 shoppers leaving a local bedding store, and we know that each of the shoppers has the SAME probability of answering yes to having made a purchase, so we can assume that the probability that a person or a shopper made a purchase is 1 / 12.

Also we know that we selected 25 individuals, so there are 25 shoppers that can say yes, that means our sample size N is 25.

and you want to know the probability that exactly 4 of the 25 shoppers made a purchase

this is a binomial distribution because we can see that we have a sample size n = 25, we have a proportion of success, 1/2to say yes to having made a purchase and we can say that each shopper is independently from the other shoppers.

So the binomial equation is given by: (check the attached image)

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4 years ago