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borishaifa [10]
4 years ago
12

A = {1,4,5,7}

Mathematics
1 answer:
igor_vitrenko [27]4 years ago
6 0

Answer:

B)

Step-by-step explanation:

A ∩ B means all the elements that appear in both of the groups

therefore:

1 nad 7 appear in both

the correct answer is B) 1 and 7

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Three machines operating independently, simultaneously, and at the same constant rate can fill a certain production order in 36
Andrews [41]

Answer:

D

Step-by-step explanation:

Let the total production order be X. The combined rate is thus x/36 orders per hour.

Now, we know that the three machines are working at the same constant rate. This means that individual rate for each of the machines will be x/36 divided by 3 and that gives x/108 per machine.

Now, we are having another machine coming at the same constant rate. This means we are adding an x/108 rate to the preexisting x/36.

The new total rate thus becomes x/108 + x/36 = 4x/108

Now we know that the total new rate is 4x/108. Since the total work doesn’t change and it is still x, the time taken to complete a work of x orders at a rate of 4x/108 order per hour would be x divided by 4x/108 and this is x * 108/4x = 108/4 = 27 hours

7 0
3 years ago
A game is played with a circular spinner that contains 8 different colors. The design
Mamont248 [21]

Answer:

64 ways

Step-by-step explanation:

there are 8 different colors, with 8 different possibilities on the color arrangement.

3 0
3 years ago
There were 75 roasted turkeys at Ally's Eats. Bob's Goods had 4/5 as many roasted turkeys as Ally's Eats. If Ally's Eats had 5/6
Sever21 [200]

Answer:

75 roasted turkeys.

Step-by-step explanation:

Ally's Eats had 75 roasted turkeys.

Bob's Goods had 4/5 as many roasted turkeys as Ally's Eats, hence, the number of roasted turkeys Bob's Goods had is:

4/5 * 75 = 60 roasted turkeys

Ally's Eats had 5/6 as many roasted turkeys as Charlotte's Market. In other words, Charlotte's market had 6/5 as many roasted turkeys as Ally's Eats:

6/5 * 75 = 90 roasted turkeys.

The average is given as the sum of all toasted turkeys in the three shops divided by 3. Hence:

A = (75 + 60 + 90) / 3

A = 225 / 3 = 75 roasted turkeys

The average number of roasted turkeys in the three shops is 75.

7 0
3 years ago
Diane is selling raffle tickets. For every 4 tickets, she charges $32.
madam [21]

Answer:

There's no table but

Step-by-step explanation:

4 tickets = $32

8 tickets = $64

Sorry if I didn't help:/.

3 0
3 years ago
What is the measure of BC? <br> A)110<br> B)48<br> C) 96<br> D)55
MAVERICK [17]

Answer:

24 degrees

Step-by-step explanation:

when you have an angle that goes to the end of a circle you divide it by two, if the end of the triangle went to O it would be 48 degrees

5 0
3 years ago
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