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3 years ago

I need help!!!please tell me the answer!!!

Mathematics

1 answer:

Misha Larkins [42]3 years ago

4 0

Sorry wanna points bfbdjudi

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A taxi fare has a fixed charge of 1.75 and an additional charge 0.45 per mile. A fare for m miles is 13.90. Which equation could

Pavel [41]

Answer:

The answer is 27 miles and option b will give that.

Step-by-step explanation:

1.75 + 0.45m = 13.90

m = (13.90 - 1.75) / 0.45

m = 27 miles

Hope this helped

3 0

3 years ago

Assume that y varies directly with x. If y=2/5 when x=1/3, find y when x=1/4. Enter in any fractions using a / (e.g. "1/2" is th

Oxana [17]

x=3/15 thus y=6/15 If x=1/4 then y =2/4

7 0

2 years ago

This is really hard, 5 points (its all those three questions in the screenshot)

Aleksandr [31]

Answer:

4. Option: 2

5. 7 inches

Step-by-step explanation:

6 0

3 years ago

Adam's goal is to practice piano for 200 minutes every week. Which practice schedule would allow him to meet his goal?

ale4655 [162]

Answer:

40 minutes per night, 5 days per week

Step-by-step explanation:

7 0

3 years ago

Jill has six different books. She will select one book on Monday and a different one to read on Wednesday. In how many ways can

lesya [120]

Answer:

D. 15

Step-by-step explanation:

For this case we can begin finding the number of ways in order to select two different books for Monday and Wednesday. We know that Jill can select a book on Monday in six different ways snce she has a total of 6 books. And for Wednesday, she need another book so then can select any of the five remaining books, and the total number of ways would be:

N= 6 × 5 = 30 ways.

We are going to assume that the order no matter. If she select a book A and then another B is the same if she select first the book B and then the book A. We are interested inthe possible pairs, and if the order no matter then the total possible pairs are:

Pairs = 30 / 2 = 15

So then the best answer would be D. 15

We can also find the solution using combinations. We have a total of 6 nooks, and we want to select two so then we hav C(6, 2) ways to select two. We need to remember that the formula for combinatories is given by:

$nCx = C(n,x) = \frac{n!}{x! (n-x)!}$

Where $n! = n * (n-1)!$

And if we replace the values we got this:

$6C2= C(6, 2) = \frac{6!}{2! (6-2)!}=\frac{6!}{2! 4!}=\frac{6*5*4!}{2! 4!}= 15$

And as we can see we got the same solution from the previous part.

4 0

3 years ago