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3 years ago

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What are the answers?

1 answer:

tekilochka [14]3 years ago

4 0

I think it would be B

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Mrs. Santos is buying binders for the students in her class. She determined that 15 binders would cost $22.50.

atroni [7]

Answer:

It will cost $42 for 28 binders

Step-by-step explanation:

We know that 15 binders = 22.50 dollars . We need to find the cost of 18, 30, 28, and 48 binders to figure out if they match up with the statements. One way to do this is to find the cost for one binder, and then multiply that by the number of binders to find the cost for a certain number of binders. For example, if one binder costs 2 dollars, five binders would cost 2 * 5 = 10 dollars.

To figure out how much one binder costs, we can use the division property of equality to divide both sides of our equation (15 binders = 22.50 dollars) by 15. We divide by 15 because anything divided by itself is equal to 1, and that would make it 1 binder = something dollars.

Applying this, we get

(15 binders)/15 = (22.5 dollars)/15

1 binder = 1.5 dollars

For 18 binders, this would cost 1.5 * 18 = 27 dollars. We know this because we add 1.5 dollars for each binder.

For 30 binders, this would cost 30*15=45 dollars

For 28 binders, this would cost 1.5 * 28 = 42 dollars

For 48 binders, this would cost 1.5*48 = 72 dollars

The only one that matches up is 28 binders for 42 dollars

8 0

3 years ago

A ship leaves port at 1:00 P.M. and travels S35°E at the rate of 27 mi/hr. Another ship leaves the same port at 1:30 P.M. and tr

Len [333]

To solve this problem you must apply the proccedure shown below:

1. You must apply the Law of Cosines, as you can see in the figure attached. Then:

- The first ship travels at $27 mi/hr$ in for two hours. Therefore, the side $a$ is:

$a=(27 mi/hr)(2 hr)=54mi$

- The second ship travels at $18 mi/hr$ for $1.5 hours$ . Therefore, the side $b$ is:

$b=(18mi/hr)(1.5hr)=27mi$

- Now, you can calculate $c$ :

$c=\sqrt{54^{2}+27^{2}-2(54)(27)Cos(55)}=44 mi$

The answer is: $44 miles$

8 0

3 years ago

24. Which measurement is equivalent to 10 g?<br> a. 1 dag<br> b. 1 dg<br> c. 1 cg<br> d. 1 hg

Liono4ka [1.6K]

Answer:

a. 1 dag

Step-by-step explanation:

The list of SI prefixes is attached. Each has an abbreviation that can be used with the abbreviation for the SI unit of interest.

<h3>Application</h3>

A factor of 10 is signified by the prefix deka-, abbreviated "da". Then 10 grams is 1 dekagram, or 1 dag.

7 0

2 years ago

4. Is the following definition of perpendicular reversible? If yes, write it as a true biconditional.

artcher [175]

<span>Is the following definition of perpendicular reversible? If yes, write it as a true biconditional.</span>

Two lines that intersect at right angles are perpendicular.

<span>A. The statement is not reversible. </span>

<span>B. Yes; if two lines intersect at right angles, then they are perpendicular. </span>

<span>C. Yes; if two lines are perpendicular, then they intersect at right angles. </span>

<span>D. Yes; two lines intersect at right angles if (and only if) they are perpendicular.</span>

Your Answer would be (D)

<span>Yes; two lines intersect at right angles if (and only if) they are perpendicular.

</span><span>REF: 2-3 Biconditionals and Definitions</span>

6 0

3 years ago

Read 2 more answers

What is the solution to the equation x+473 = 0

nikitadnepr [17]

-473 + 473=0 , so D.

5 0

3 years ago

Read 2 more answers