Mr. Gregson packs ornaments into boxes. Each box holds eight ornaments. Which representation displays the relationship between x, the number of boxes packed, and y, the number of ornaments packed?

Answer: 311 bears

Step-by-step explanation:

Population increased by 115% in the 35 years from 1970 to 2005.

Population in 2005 is:

= 270 * 115/100

= 310.5

= 311 bears

Answer:

581

Step-by-step explanation:

270x%115=310.5

We have to round 310.5 to the nearest So 310.5 will be 311  

So if it increased by 115%  we have to add the 115% to 270

270+311= 581  

By the 2005 the population will be 581

Hope it helps :)

I think the answer is 62 ? I have never seen this kind of math?

Answer:

The answer is 143

Step-by-step explanation:

Because if you subtract 152-149 it equals 3 and same with 149-146 so it means that the sequence is going down by 3 each time. Hope that helps!

The above equation equals -27

9514 1404 393

Answer:

  9.  not possible

  13, 14, 19.  AAS — 13: WYX≅AYZ; 14: CFD≅CEB; 19: DEH≅GEF

  15, 16.  not possible

Step-by-step explanation:

9. You're looking for three sides, or two sides flanking a congruent angle. Here, the angle is not between the two sides, so the SAS theorem does not apply. Proving congruence is not possible.

__

13, 14, 19. You have two adjacent angles, followed by a side, so the AAS theorem will prove congruence.  

When you write the congruence statement, you need to make sure the nodes are named in corresponding order. It can be useful to name the nodes in the same order as the elements you claim for congruence. For these, we name the two angle nodes first, then the other end of the side.

13: WYX≅AYZ; 14: CFD≅CEB; 19: DEH≅GEF

__

15, 16. With only one angle and one side, it is not possible to prove congruence.

_____

Additional comment

With these theorems, you are looking for angles or sides that are adjacent (next to each other). In figure 9, there are two sides and an angle, so you might be tempted to claim SAS congruence. The name SAS means the angle must be between the two sides. In that figure, the two sides are adjacent, and the angle is adjacent to only one of the sides (not between them). Hence SAS does not apply.

(You will find later that two sides and a non-adjacent angle will define a unique triangle if, and only if, the angle is opposite the longest of the two given sides. In figures like these, no side lengths are given, and you are not allowed to rely on appearances.)

Answer:

$2.45

Step-by-step explanation:

First, we find how much 20% of 12.25 is:

we can convert 20% directly to a decimal:

20% = 0.2  

Then we find

20% of 12.25 = 0.2 x 12.25 = 2.45

So Maria's tip would be $2.45

9514 1404 393

Answer:

  5n -3

Step-by-step explanation:

Try n=1 in each expression and see which gives you a first term of 2.

  2-5n = 2-5·1 = -3

  2n -5 = 2·1 -5 = -3

  5n -3 = 5·1 -3 = 2 . . . . . this is the expression you want

  5n +2 = 5·1 +2 = 7

__

Additional comment

For a common difference of 5, the coefficient of n must be 5. The second answer choice fails on that count also.

Answer:

5n-3

Step-by-step explanation:

Step-by-step explanation:

Angle ACO = 140° - x. (Sum of angles in a triangle is 180°)

Now draw the line OD. The triangles ODC and OBC are congruent via the SSS congruence property. (OD and OB are both the radius of semicircle, common side OC, and side CD = CB is given)

Hence Angle BCO = Angle ACO = 140° - x.

Since triangle OBC is an isosceles triangle with OC = OB, this means that Angle CBO is also 140° - x.

By Exterior Angle theorem,

we have Angle AOC = Angles BCO + CBO

=> x = (140° - x) + (140° - x)

=> 3x = 280°

=> x = 280°/3. (B)

Answer:

Every repeating or terminating decimal is a rational number

Each repeating decimal number satisfies a linear equation with integer coefficients, and its unique solution is a rational number.

Answer:

16 < n < 40

Step-by-step explanation:

use triangle inequality theorem:

n = length of third side

12 + 28 > n;    n > 40

12 + n > 28;    n > 16

n + 28 > 12  (this inequality can be discounted because it results in a negative)

Answer:

r=9

Step-by-step explanation:

Answer:

Right, 6 cm is the height. 5 cm is the base

Step-by-step explanation:

Answer:

12

Explanation:

21 ÷ 7 × 4

21 ÷ 7 = 3

3 * 4 = 12

Answer:

12

Step-by-step explanation:

So..... multiplication can be done at the same time as division, so we don't have to worry about the order of operations :)

so, 21 divided by 7 is 3

then, you multiply 3 by 4, which is 12

and btw, I also found another methoddddddddddddd

you can do, 21 times 4, which is 84, divided by 4 times 7, which is 28

84 divided by 28 is 3

then you multiply it by 4, it gives 12

and btw, that also works for other numbers too!!!!!!!!!!!!

Answer:

3/5

Step-by-step explanation:

Slope = rise/run = (4-1)(1- -4) = 3/5.

Answer:

5X=90

Step-by-step explanation:

5x=90

5x=90

5    5

x=18

Answer:

300ft^2

Step-by-step explanation:

Answer:  A. 2 17 /21

Step-by-step explanation:you divide them.You change both mixed number to improper fraction.which is 236  /9  divide  28 /3.You do kcf which stand for KEEP CHANGE FLIP.YOU KEEP 236/9 and change Divide to mulipction sign and flip 28/3 to 3/28.You multiply236  /9  and  28/3 which gives u 708  /252.After that u simply it to 59 /21 .Lastly change back to mix number which is 2 17/21.

Hope it helps bye ;)

Answer: Nine I think

Step-by-step explanation: maybe because 3x3 would equal 9 and 9x1 equals 9

Answer:

x = 42 degrees

y = 14 degrees

Step-by-step explanation:

Solve for x

180 - 96 = 2x

2x = 84

x = 84/2

x = 42

Solve for y

180 - 94 - 44 = 3y

3y = 42

y = 42/3

y = 14

Answer: I think it’s 8

Step-by-step explanation: because it can’t be the other ones

Answer: The last one  ([tex]8^{2}[/tex])

Step-by-step explanation:

Here’s why:

the 2 on top of the 8 is called an exponent and it means that you need the multiply 8 times itself two times (8 x 8), and if you know your times tables you know that 8 x 8 is 64 not 16

Answer:

√x=√25.......x=5

Step-by-step explanation:

√25-5=0

5-5=0

Answer:

√x-5=0

√x=5

squaring both side

√x²=5²

x=±25

Answer:

Step-by-step explanation:

f(z)=3(-9)^2+10(-9)-6

f(z)=3(81)-90-6=243-96=147

Answer:

200 X 5 = 1000 square feet

Step-by-step explanation:

V = L x W x H

Answer:

1,000

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

19.26%

Step-by-step explanation:

Given the original selling price of DVD player as ​$179.30 and the new sale price to be ​$144.77, the the first step in finding the percent​ markdown is to take the difference between the original selling price and the sale price to give $179.30 - $144.77 = $34.53

Percent markdown = original selling price- new sale price/original selling price × 100%

Percent markdown = $34.53/$179.30 × 100%

% markdown = 19.26%

Answer: no its one solution

Step-by-step explanation:

Answer:

y= 45

x=9

Step-by-step explanation:

plug 5x into y since y=5x:

5x=4x+9

-4. -4

x=9

5(9)=45

Answer:

x=9 y=45

Step-by-step explanation:

y=4x + 9.......(1)

y= 5x.........(2)

Substitute 5x for y in equation 1.

5x= 4x + 9

5x - 4x = 9 (Collect like terms 5 and 4 have x in common if +4 crossover it changes to -4)

x = 9

substitute 9 for x in equation 2.

y = 5(9)

y = 5 x 9(multiplication)

y = 45

Answer:

yes -9 Is greater than -10