Set A is the set of positive two-digit odd numbers greater than 39 that are divisible by 5.

What are the answers to these questions? I NEED HELP NOW ASAP PLEASE SOMEONE HELP.

Alja [10]

Answer:

below

Step-by-step explanation:

1)a) 6:2, 8:4

b) 8:4, 16:8

c) 2:4, 4:8

d) 10:12, 20:24

e) 6:10, 12:20

f) 8:18, 16:36

g) 14:16, 28:32

h) 20:12, 40,24

i) 2:2, 4:4

j) 4:10

2)a) 20: 25

b) 20: 80

c) 35:20

d) 20:6

3)a) yes ; times both 1 and 2 by 7

b) no ; 9 is not divisible by 2

c) yes ; 1 and 10 times 4

4) not sure i think 1 or 2 but I dont know

3 0

2 years ago

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A theatre has the capacity to seat two levels. The circle and the stalls. The ratio in the number of seats in the circle compare

Nady [450]

Answer:

76.19% is the percentage of occupancy on last Friday.

Step-by-step explanation:

The question is incomplete, so the complete question is below:

$A\ theatre\ has\ the\ capacity\ to\ seat\ two\ levels.$ $\ The\ circle\ and\ the\ stalls.\ The\ ratio\ in\ the\ number\ of\ seats\ in\ the\ circle\$ $compared\ to\ the\ number\ of\ seats\ in\ the\ stalls\ is\ 2:5.$ $\ Last\ Friday,\ the\ audience\ occupied\ all\ the\ 528\ seats\ in\ the\ circle$ $\ and\ 2/3\ of\ the\ seats\ in\ the\ stalls.$ $\ What\ is\ the\ percentage\ of\ occupancy\ of\ the\ theatre\ last\ Friday?$

Now, to get the percentage of occupancy of the theatre last Friday.

Let $x$ be all the seats in the stalls.

Total number of seats in the circle occupied by audience last friday = 528.

According to question, 2 : 5 is the ratio in the number of seats in the circle compared to the number of seats in the stalls.

So, 2 is equivalent to 5.

And, 528 is equivalent to $x$ .

Now, to get the number of stalls by using cross multiplication method:

$\frac{2}{5} =\frac{528}{x}$

By cross multiplying we get:

$2x=2640$

Dividing both sides by 2 we get:

$x=1320.$

Total number of seats in the stalls = 1320.

Now, to get the people occupied seats in the stalls on last friday:

$\frac{2}{3} \ of\ 1320\\\\=\frac{2}{3} \times 1320\\\\=880.$

Thus, people occupied 880 seats in the stalls on last friday.

So, the total number of seats in the circle and stalls:

$1320+528\\\\=1848.$

And, the total number of seats people occupied last friday:

$528+880\\\\=1408.$

Now, to get the percentage of occupancy of the theatre last Friday:

$\frac{1408}{1848} \times 100$

$=\frac{140800}{1848} \\\\=76.19\%.$

Therefore, 76.19% the percentage of occupancy on last Friday.

8 0

4 years ago

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The perimeter of a rectangle is 26 inches. The length of the rectangle is 7 more than its width. What is the area of the rectang

mars1129 [50]

Answer:30

Step-by-step explanation:the perimeter is 26 and the length is 7 more than the width so you subtract 14 for both the sides of the rectangle from the perimeter and are left with 12 so you divide that by 4 for the 4 sides of the rectangle and get 3 so the width is 3 and the length is 10.

3 0

3 years ago

Find the arc length of a central angle of <img src="https://tex.z-dn.net/?f=%5Cpi" id="TexFormula1" title="\pi" alt="\pi" align=

denis-greek [22]

Answer:

The arc length is $2\pi$ inches or 6.28 inches

Step-by-step explanation:

To solve this we are using the arc length formula:

$s=r\alpha$

where

$s$ is the arc length

$r$ is the radius of the circle

$\alpha$ is the central angle in radians

We know from our problem that the central angle is $\frac{\pi }{4}$ and the radius of the circle is 8 inches, so $\alpha =\frac{\pi }{4}$ and $r=8in$ . Let's replace the values to find $s$ :

$s=r\alpha$

$s=(8in)(\frac{\pi }{4} )$

$s=2\pi in$

$s=6.28in$

4 0

4 years ago

Solve 19.9 = 9 y - 8. y =

pogonyaev

Answer:

1.3223 is the answer for y

5 0

3 years ago

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