Please hurry

Mathematics

1 answer:

disa [49]3 years ago

6 0

Answer: x

Step-by-step explanation:

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Mrs. Dugan plans to serve 100 barbecue sandwiches at the company picnic. How many packages of barbecue buns will she need if bun

Aleonysh [2.5K]

100 sandwiches, using bun packages of 8...

100/8=12.5 Since you cant buy a half a package, round up to 13 packages

100 sandwiches, using bun packages of 12...

100/12=8.33 Since you cant have a third of a package, round up to 9 packages

6 0

3 years ago

Find the circumference of a circle with an area of 28.26.<br> Show work please.

muminat

Answer:

18.84

Step-by-step explanation:

Since the formula for circumference is $C=2\pi r$ , we need to first find the radius. The formula for the radius is $r=\frac{\sqrt{A\pi } }{\pi }$ , so we will get $r=3$ . Substitute that into $C=2\pi r$ , and we get $C=18.84$ . Hope this helps!

<h2><u><em>Please mark brainliest!</em></u></h2>

4 0

3 years ago

The digit in each place has a value that is

kati45 [8]

ok lets say the number is 375 ok so the five is in the ones place so its worth only 5 the seven is in the tenths place its worth would be 70 and all you had to was multiply the number times 10 because it in the tenths place ok moving on the 3 is in he hundreds place so its worth 300 why because all you have to do is multiply the number in the hundreds by one hundreds

7 0

3 years ago

3x + 2y + z = 8 2x - 3y + 2z = -16 x + 4y - z = 20

padilas [110]

I'll do a similar problem, and I challenge you to do this on your own using similar methods!

x+5y+2z=23
8x+4y+3z=12
9x-3y-7z=-10

Multiplying the first equation by -8 and adding it to the second one (to get rid of the x) and also multiplying the first equation by -9 and adding the third one to get rid of the x there too, we end up with

-36y-13z=-92
and
-48y-25z=-217

Multiplying both equations by -1, we get
36y+13z=-92
48y+25z=217

Multiplying the (new) first equation by -4/3 and adding it to the second (to get rid of the y), we get
(7+2/3)z=94+1/3

Dividing both sides by (7+2/3) to separate the z, we get
z= $\frac{282/3}{23/3} = \frac{282}{23}$

Plugging that into
48y+25z=217, we can subtract 25z from both sides and divide by 48 to get
$y= \frac{217-25z}{48} =\frac{217-25*282/23}{48}$

Lastly, we plug this into x+5y+2z=23 to get
x=23-5y-2z by subtracting 5y+2z from both sides to get
$x=23- \frac{217-25*282/23}{48}*5-2*282/23$

Good luck, and feel free to ask with any questions!

4 0

3 years ago

While playing a video game, you score p game points

777dan777 [17]

Answer:245+3*20

305points

Step-by-step explanation:

7 0

3 years ago