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3 years ago

Solve using the Distributive Property

Mathematics

1 answer:

diamong [38]3 years ago

5 0

Answer:

6(5)+(2)5

Step-by-step explanation:

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Estimate the product. Then find the exact product.

Assoli18 [71]

Answer:

7.97

Step-by-step explanation:

hope this helps

sorry if its wrong

4 0

3 years ago

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John earns $25 per hour as a part-time firefighter. If John works 30 hours per week, how much does he earn that week?

Tanzania [10]

Answer: $750

Step-by-step explanation:

So we know that he earns $25 per hour, and we want to know how much he earns if he worked for 30 hours which is a week.

25=1

?=30

then we can cross multiply which is

$\frac{25(30)}{1}$ =750

so the answer is John earns $750 a week.

8 0

3 years ago

Is the number 29 prime or composite?

Tema [17]

Composite because number that are greater than 5 are composite

8 0

4 years ago

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e) Given the following: Let X = {1, 2, 3, 4) and a relation R on X as R= {(1,2), (2,3), (3,4)}. Find the reflexive and transitiv

Naddika [18.5K]

Answer:

The answer is $\{(1,1),(2,2),(3,3),(4,4),(1,2)(2,3)(3,4),(1,3),(1,4)\}$

Step-by-step explanation:

Remember that a reflexive relation $R\subset \mathcal{P}(X)$ , where $\mathcal{P}(X)$ is the power set of $X$ , is one which conteins the ordered pairs of the form $(a,a)$ , for $a\in X$ .

So, As the reflexive and transitive closure of $R$ (that we will denote by $\overline{R}$ ) is in particular reflexive, we must add to $R$ the elements $\{(1,1) , (2,2),(3,3),(4,4) \}$

A transitive relation $R$ is one in which if the pair $(a,b)$ and the pair $(b,c)$ are in there, then the pair $(a,c)$ must be there too.

So, to complete the relation $R$ to be reflexive and transitive we must add the pair $(1,3)$ (because $(1,2),(2,3)$ are in $R$ ), the pair $(2,4)$ , and the pair $(1,4)$ because we added the pair $(2,4)$ .