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3 years ago

For each sequence shown find the growth factor or rate of change. 5, 15, 25, 35, 45

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

6 0

The numbers are increasing by positive 10 each time. So the rate of change is 10.

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In a group of 31 pupils, 4 play the flute only. 14 play the piano only. 7 play neither instrument. A student is selected at rand

solmaris [256]

Answer:

probability the student plays both instruments is [ $\frac{6}{31}$ ]

<h2> <u>Explanation</u>:</h2>

students who play both instruments = total students - flute players - piano players - students who play neither instruments

students who play both instruments

→ 31 - 4 - 14 - 7

→ 6 students play both instruments.

probability:

<h2>→ $\boxed{\frac{students- who -play- both- instruments}{total -students} }$ </h2><h2>→ $\boxed{\frac{6}{31} }$ </h2>

7 0

2 years ago

Read 2 more answers

What is the value of x? Enter your answer in the box.

Radda [10]

Answer:

x=47

Step-by-step explanation:

We can use the triangle bisector theorem

TK TV

----------- = -----------

YK YV

Substituting what we know

87.5 77

----------- = -----------

x-22 22

Using cross products

87.5 * 22 = 77 *(x-22)

Distribute

1925 =77x - 1694

Add 1694 to each side

1925 + 1694 =77x - 1694+1694

3619 = 77x

Divide by 77

3619/77 = 77x/77

47=x

8 0

3 years ago

Cindy earns $10.50 per hour working at a restaurant. On Friday, she spent 1 3/4 hours cleaning, 2 1/3 hours doing paperwork, and

AnnyKZ [126]

$61.25

All you have to do is add all the fractions and multiply it by 10.50

7 0

3 years ago

How many minutes are in 2/3 hour? How many minutes are in 3/5 of that time?

Tom [10]

2/3 hour = 20 minutes. so therefore 20 / 5 = 4 x3 = 12
3/5 of that time is 12 minutes.

8 0

3 years ago

Read 2 more answers

jeanine Baker makes floral arrangements. She has 13 different cut flowers and plans to use 7 of them. How many different selecti

Ksju [112]

A total of 1,716 selections of the 7 flowers are possible.

Step-by-step explanation:

Step 1:

There are 13 flowers from which Jeanine Baker plans to use 7 of them.

To determine the number of selections that are possible we use combinations.

The formula for combinations is; $^{n} C_{r}=\frac{n !}{(n-r) ! r !}$ .

Step 2:

In the given formula, n is the total number of options and r is the number of options to be selected.

For this question, $n = 13$ and $r=7$ .

So $^{13} C_{7}=\frac{13 !}{(13-7) ! 7 !} = \frac{13 !}{(6) ! 7 !} = 1,716.$

So a total of 1,716 selections are possible.

3 0

3 years ago