1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
gladu [14]
3 years ago
9

Kevin earns $6.75 an hour. At this rate how much does he earn in40 hours?

Mathematics
1 answer:
Elenna [48]3 years ago
3 0

Answer:

$270

Step-by-step explanation:

Simply take the per hour rate and multiply it by the number of hours.

6.75 X 40 = 270

You might be interested in
Determine if the following statement is true or false. (Enter TRUE if the statement is true, enter a counterexample if the state
ehidna [41]

Answer:

The answer is: the satement is FALSE.  

Step-by-step explanation:

The first step is to transform the propositons in the statement into symbols:

A: m is any positive integer

B: n is any positive integer

C: mn is a a perfect square

D: m is a perfect square

E: n is a perfect square

After that we replace the symbols into the statement:

If A and B and C, then D and E

Logical connectives on the satement are:

  • p⇒q conditional (if ...,then...). For this connective the only case when is FALSE is when the antecedent is true and the consequent is false.  
  • p ∧ q conjunction (p and q). For this connective the only case when is TRUE is when the two propositions are true at the same time.  

So now, we are going to replace the logical connectives on the statement:

((A ∧ B) ∧ C)  ⇒ (D ∧ E)

There is a hierarchy in logical connectives, first we evaluate those inside brackets. The principal connective is evaluated at the end. In this particular case, the principal connective is the conditional.

As we have five different propositions, the combinations are given by the following rule:

2^n= 2^5=32

32 different combinations  

In figure 1, added bellow, it shows the construction of truth table.

In figure 2, added bellow, it shows the development of the truth table. In the development, we don't have as a result a tautology, therefore the statement is FALSE.  

Download pdf
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> pdf </span>
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> pdf </span>
8 0
4 years ago
14. A group of crafters is collecting data on the amount of yarn they use for each scarf knitted. Each person collected 12 piece
fgiga [73]

Answer:

D. There is not enough information to make a conclusion about the population mean.

Step-by-step explanation:

One of the crafters Chris has a sample means of 200. This means that the average amount of yarn Chris used is 200 meters. Yet there is nothing else given about the other crafters, hence it is impossible to draw a conclusion.

5 0
3 years ago
Evaluate the expression. <br> 3 + (50- 5^2)
Mashutka [201]
The answer is = 28 …………….
7 0
3 years ago
A plumber charges $55 for a service call plus $35 per hour. If the plumber’s bill was $160, how many hours was he there?
s344n2d4d5 [400]
Y = 35x + 55
160 = 35x + 55
-55
105 = 35x
3 = x
the plumber was there for 3 hours
3 0
3 years ago
Write a following relationship as a ratio using a colon. 2 students out of 10
sladkih [1.3K]
We use ratios to make comparisons between two things. When we express ratios in words, we use the word "to"--we say "the ratio of something to something else." Ratios can be written in several different ways: as a fraction, using the word "to", or with a colon.

<span>Let's use this illustration of shapes to learn more about ratios. How can we write the ratio of squares to circles, or 3 to 6? The most common way to write a ratio is as a fraction, 3/6. We could also write it using the word "to," as "3 to 6." Finally, we could write this ratio using a colon between the two numbers, 3:6. Be sure you understand that these are all ways to write the same number. </span>

4 0
3 years ago
Other questions:
  • A charity organization had a fundraiser where each ticket was sold for a fixed price $70. They had to sell a few tickets just to
    7·1 answer
  • Dans computer reads 68% of battery left after 1 hour. If the rate of using power remains the same, about how much longer will hi
    9·1 answer
  • T/2+2=4 two step equations
    8·1 answer
  • Can someone please help me ?
    13·1 answer
  • A 0.1 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender​ selecti
    10·1 answer
  • Damian’s father purchases 8 notebooks for school. The total amount for the notebooks is $31.68.
    12·2 answers
  • Answer please, Ill give Brrainliest for right answer
    5·1 answer
  • I need help with this
    14·1 answer
  • Solve the system of equations 4x + 8y = 4 and —2x – 7y = -11 by combining<br> the equations.
    6·1 answer
  • Hi pls help answer this!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!