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Step-by-step explanation:

let necklace : x

let earrings : y

x+y=144 -1st eqn

6x+5y=825 -2nd eqn

y=144-X -3rd eqn

substitute eqn into 2nd eqn

6x+5(144-x)= 825

6x +720-5X =825 (expanded)

X = 825-720

X =105

substitute "X=105" into 1st eqn

(105)+y=144

y= 144-105

y=39

1 necklace = 105$

1 pair of earrings = 39$

(to check back: substitute the value into the original eqn)

Answer:

Step-by-step explanation:

P(BB)=(4/10)(3/9)

P(BB)=12/90

P(BB)=2/15

Answer:

2 1/4 or 2.25

Step-by-step explanation:

2/4 = 1/2

3/2 = 6/4

1/2 + 3/2 + 1/4

2/4 + 6/4 + 1/4

add

2 + 6 + 1

= 9

so

9/4, = 2 1/4

Plz mark as brainliest if correct!!!

Answer:

C. 3 to 18, 5 to 30 is equal

Step-by-step explanation:

Answer: irdk the awnser but F on that tumor

Answer:

let x=2t and y=5t

-x+3y = -2t+15t = 13t

2x+y = 4t+5t = 9t

So the ratio is 13t : 9t

So, the ratio is 13 : 9

Answer: b

Step-by-step explanation: step  step

Answer:

1606588.92

Step-by-step explanation:

Answer:

[tex]h = 3544.83km[/tex]

Step-by-step explanation:

Given

[tex]P= 760 - 0.145h[/tex]

Required

Find h when P = 246

Substitute 246 for P

[tex]246= 760 - 0.145h[/tex]

Collect like terms

[tex]246- 760 = - 0.145h[/tex]

[tex]-514= - 0.145h[/tex]

Make h the subject

[tex]h = \frac{-514}{-0.145}[/tex]

[tex]h = 3544.83km[/tex]

Answer:

456yup 89i28993728128828282 6r3235

664r5790

Answer:

d.

Brand C, Brand A, Brand B

Step-by-step explanation:

To find the unit price, we divide the price by the number of pounds.

Brand A: $1.48 for 2.5 pounds

Unit price of:

[tex]\frac{1.48}{2.5} = 0.592[/tex]

Brand B: $1.30 for 907.18 grams; 1 pound is approximately 453.59 grams

907.18/453.59 = 2 pounds

Unit price of:

[tex]\frac{1.3}{2} = 0.65[/tex]

Brand C: $1.55 for 50 ounces; 1 pound is equal to 16 ounces

50/16 = 3.125 pounds

Unit price of:

[tex]\frac{1.55}{3.125} = 0.496[/tex]

From lowest to highest unit price:

C, A and B, so option d.

Answer:

D

Step-by-step explanation:

Unit prices are ratios, so you can add the two prices together and divide by the smaller unit price to get a usable number.

Answer:

The awnser is 1/16!!!!!!!!!!!!!

Answer:

90. ( was the full capacity of jug)

to solve this

firstly let the full capacity of jug

be. x

so,

4/5*x = 72

x = 72*5/4

x = 90

hope it helps

Answer:

On day 20, they should both be on page 200

Step-by-step explanation:

I set the 2 equations up:

10d=8d+40 and then subtracted 8d from both sides

2d=40 and then divided both sides by 2

d=20

I then took 20 and multiplied it by 10 for Ashley (200) and then multiplied it by 8 for Carly (160) and added 40 (200)

Hope this helps!

Answer:

25, I believe

Step-by-step explanation:

Given a=7 and b=24,

c = 25

Answer:

25

Step-by-step explanation:

a² + b² = c², by Pythagoras

In this case 'x' is the 'c' for hypotenuse length

7² + 24² = x²

49 + 576 = x²

625 = x²

√625 = x

25 = x

Answer:

a = 40 degrees

Step-by-step explanation:

the inscribed angle of 200 degree arc is 100 degrees.

the sum of all the interior angles of a triangle is 180 degrees so:

angle a = 180 - 100 - 40 = 40 degrees

Given:

The sequence is:

12, 6, 3, ...

To find:

The formula for the nth term of the given sequence.

Solution:

We have,

12, 6, 3, ...

Here, first term is 12.

Clearly, [tex]\dfrac{6}{12}=\dfrac{3}{6}[/tex]. Since the given sequence has a common ratio [tex]r=dfrac{1}{2}[/tex], therefore it is a geometric sequence.

The formula for the nth term of the given sequence is:

[tex]a_n=ar^{n-1}[/tex]

Where, a is the first term and r is the common ratio.

[tex]a_n=12\left(\dfrac{1}{2}\right)^{n-1}[/tex]

Therefore, the formula for the nth term of the given sequence is [tex]a_n=12\left(\dfrac{1}{2}\right)^{n-1}[/tex].

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

2x + x - 11 + 3 - 7x = 15

-4x = 23

x = -23/4

y values: 3,4,5,6

x values: 5,10,15,20

Step-by-step explanation:

I used a graphing calculator but y is increasing by one and x increases by 5 each time

Answer:

See below.

Step-by-step explanation:

A's number is x. B's number is y.

x = 5y - 10

First row: What is x when y= 3?

                             x = 5y - 10 = 5*3 - 10 = 15 - 10 = 5; x = 5

Second row: What is x when y = 4?

                             x = 5y - 10 = 5*4 - 10 = 20 - 10 = 10; x = 10

Third row:      What is y when x = 15?

                             x = 5y - 10

  Add 10 both sides     x + 10 = 5y - 10 +10

                                      x + 10 = 5y

But we're told x = 15, so   15 + 10 = 5y

                                             25 = 5y

Divide both sides by 5         25/5 = 5y/5

                                                  5 = y                      y = 5

Fourth row: What is x when y = 6?

                                        x = 5y - 10 = 5*6 - 10 = 30 - 10 = 20; x = 20

Answer:

314 yd²

Step-by-step explanation:

A = πr²

 Use the formula.

A = π(10)²

 Substitute. Use 10 for r.

A ≈ 3.14 × 10²

 Substitute. Use 3.14 for π.

A ≈ 3.14 × 100 Evaluate the power.

A ≈ 314 Multiply.

The area of the circle is about 314 yd².

What is the question?

Answer:

10

Step-by-step explanation:

50+4x=90

4x=90-50

4x=40

x=40/4

x=10

Answer:

i think its 15,6,7,45

Answer:

Down Below :)

Step-by-step explanation:

15, 6, 7, 45

Multiply 5 by 1. You should get 5. Multiply/Divide. Top to Bottom is Multiplication, meanwhile Bottom to top is Division. Hope this helped!

Answer: Team B, 8N

Step-by-step explanation: I think it's team be because when doing the problem team a is 24 n to the right while Team B is 32 n to the left, and since they are pointing different directions you would subtract those and then get your answer. Since Team B has the larger force it will be the one to win.

Answer:

Its C

Step-by-step explanation:

Answer:

The line cannot be extended to any point since we are trying to graph a zero that is equivalent to absolutely nothing

Step-by-step explanation:

choose as brainliest

Answer:

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

120+330=450

8+22=30

per minute->450÷30=15