In a new necklace, the ratio of star-shaped beads to moon-shaped beads is 5 to 2. If the necklace has 20 star shaped beads, how many total beads are on the necklace? Explain.

Answers

Answer 1

Answer:

28

Step-by-step explanation:

In the ratio:

star-shaped beads = 5

moon-shaped beads = 2

total number of beads = 5 + 2 = 7

ratio of star-shaped beads to total number of beads = 5:7

star-shaped beads = 20

Let x = total number of beads.

20/x = 5/7

Cross multiply.

5x = 20 * 7

Divide both sides by 5.

x = 4 * 7

x = 28

Answer: 28


Related Questions

125000 to 117500 what is the percent decrease?

Answers

Answer: It is a 6 percent decrease

Step-by-step explanation:

125,000-117,500=7,500

(125,000)(0.06)=7,500

an observer 12 m away from the foot of tree observes that the angle of elevation is 30° find the height of tree


anyone send me photo plz​

Answers

(I copied this from another answer, but hope it helps!)

Liam puts $800 in a savings account at an annual interest rate of 2%. If Liam does not withdraw or deposit any money, what is the interest that Liam will earn at the end of six months?

Answers

Answer:

$8

Step-by-step explanation:

A zookeeper recorded the feeding schedule for a baby rhinoceros for 20 weeks. The table and scatterplot show the percentage of the baby rhinoceros’s body mass that was used to determine the amount of food given at each feeding as a linear function of its age in weeks.

Answers

Answer:6%

Step-by-step explanation:

Which binomial is a factor of 9x2 – 64?

3x – 8
9x – 32
3x + 32
9x + 8

Answers

Answer:

It’s the first one, 9x-32

Step-by-step explanation:

Maybe

there are 200 cards in a box luis wants to sell 35% how much does she want to sell

Answers

Answer:

%35 of 200 is 70

Step-by-step explanation:

so it maybe 70

am i right

Answer:

70% percent of cards

Step-by-step explanation:

If I am wrong pls correct me

Mr. Brown sold his house through real estate agent to whom he paid a commission of 7% of the sale price. Lf the sale price of the house was $90,500, how much commission did Mr. Brown pay?

Answers

Answer:

The commission is $6335

Step-by-step explanation:

Step one:

given

The sale price of the house was $90,500

the commission is 7% of the sale price

Required

The amount of the commission

Step two:

the amount of the commission can be calculated as follows

[tex]=7/100*90500\\\\=0.07*90500\\\\=6335[/tex]

Joshua and Rita shared some marbles in the ratio of 2:3. If Joshua had 24 marbles, how many did Rita have?
PLEASE ANSWER QUICKLY THIS IS URGENT

Answers

Answer:

36 marbles

Step-by-step explanation:

24/2=12

12*3=36

Answer: 36

Explanation:
2:3...
24:36
24/2 = 12 so 3 x 12 = 36

The total distance around Regina rectangular shaped bedroom is 300 feet, the length of the room is 80 feet. What is the area of Regina bedroom

Answers

Answer:

5600 square feets

Step-by-step explanation:

Let [tex]l, b[/tex] denote length and breadth of the rectangular shaped bedroom.

The total distance around Regina rectangular shaped bedroom is 300 feet.

[tex]2(l+b)=300\\l+b=150[/tex]

The length of the room is 80 feet.

Put [tex]l=80[/tex]

[tex]80+b=150[/tex]

[tex]b=150-80=70[/tex] feets

Area of the rectangular shaped bedroom [tex]=lb=80(70)=5600[/tex] square feets.

Ab(-2 13)(0 3) CD (-5 0)(10 3) parallel lines identify please help

Answers

Answer:

they are not parallel

Step-by-step explanation:

they intersect eachother

PLS HELP! THANKS! EXTRA P

Answers

Answer:

Step-by-step explanation:

I don't know how to help you by the way you're really pretty

Plz help with number 10

Answers

First choice is the answer

This is 8th grade math 5y+2×5h=4h Solve for h

Answers

Answer:

h= −5/6y (negative 5 y over 6)

Step-by-step explanation:

5y+(2)(5)h=4h

Step 1: Add -4h to both sides.

10h+5y+−4h=4h+−4h

6h+5y=0

Step 2: Add -5y to both sides.

6h+5y+−5y=0+−5y

6h=−5y

Step 3: Divide both sides by 6.

6h/6=−5y/6

h=−5/6y

Answer:

h = - 5y/ 6

Step-by-step explanation:

5y + 2 * 5h = 4h

Using BODMAS

Perform multiplication first

5y + 10h = 4h

Collect like terms

5y = 4h - 10h

5y = - 6h

Divide both sides by - 6

5y / - 6 = - 6h / - 6

h = - 5y/ 6

Solve the proportion (w+12)/(3w+5)=3/4

Answers

Answer:

[tex]w=6.6[/tex]

[tex]18.6:24.8::3:4[/tex]

Step-by-step explanation:

[tex]As\ we\ know\ that,\\(w+12):(3w+5)::3:4\\By\ the\ proportion\ method\ of\ multiplying\ the\ means\ and\ the\ extremes,\\we\ get,\\(w+12)*4=3*(3w+5)\\4w+48=9w+15\\48-15=9w-4w\\33=5w\\[/tex]

[tex]w=33/5\\w=6.6[/tex]

[tex]By\ substituting\ the\ value\ of\ w\ in\ the\ proportion. you\ get:\\(6.6+12)/(3*6.6+5)=3/4\\18.6/24.8=3/4\\18.6:24.8::3:4[/tex]

If the monthly cost for 14 HCF is $48.70, what is the monthly cost for 10 HCF?

Answers

Answer:

$34.78

Step-by-step explanation:

first,  we need to find the value of 1 HCF, so we divide $48.70 by 14, giving us the result of 3.47857143. (rounding that turns out to be 3.48.

next, we need to multiply the cost of 1 HCF by 10, so 3.48 * 10 = 34.78

What is -5 5/8 + 3 1/2

A: -3 1/8
B: -2 1/2
C: -2 1/8
D: -7/8

Answers

Answer:

The answer is -2 1/8 I used an app called Cymath to figure this out it goes down step by step.

Step-by-step explanation:

Hope I helped! :)

What value of b will cause 16x ^ 2 + bx + 4 = 0 to have one real solution ?

Answers

Answer:

b  =  16

Step-by-step explanation:

16*x  + b*x  + 4  =  0

Solving for x we get:

x₁,₂  =   - b  ±  √  b² - 4*a*c   ] / 2*a         (1)

If we take a look to the square root

√ b² - 4*4*16      =  √ b²  - 256

if we make √ b²  - 256    = 0

b²  =  256       ⇒      b  =  16

Then equation (1) becomes:

x₁,₂  = ( - 16  ±  0  ) / 32

x  = -  1/2

Identify binomials from the following expressions :

12p + q, 13m - n + r, 15xyz, x + y - 6z

Answers

Answer:

The First one

Step-by-step explanation:

Binomial is an expression with two terms.

Answer:

12p+q

Step-by-step explanation:

12p+q - binomial

13m-n+r - trinomial

15xyz - monomial

x+y-6z - trinomial

can someone please answer this with step by step i really need help thank you

Answers

Answer:

40°

I hope it will be useful.

Step-by-step explanation:

Angles on the same side of the transversal are equal.

Answer:

x=40

Step-by-step explanation:

If m and n are parallel (symbol ||) then the blue angles must be equal.

In other words, 120 must be 3x.

Hence the solution for x is 120 divided by 3, which is 40.

A car drives 450 mi in 10 h.

How fast is the car going
(write the answer as mph)

Answers

Answer:

45 mph

Speed =distance ÷ time

X=450÷10

X=45

You divide the distance by time
450/10=45
45mph

Please help look at the picture attached need answers ASAP

Answers

12x+6y=9 ->> y=-2x+3/2

Solution is (-3,7), what are the linear equations

Answers

Answer:

[tex]y=2x-1[/tex]

Step-by-step explanation:

From the question we are told that

equation has a solution (-3,7)

Generally which means solution pass this point

Mathematically solving for slope and intercept

     [tex]y=mx +b[/tex]

     [tex]7=m(3) +b[/tex]

     [tex]b=7-3m[/tex]

Generally we assume a slope as slope intercept pair a numerous

     [tex]m=2[/tex]

Mathematically solving

     [tex]b=7-3m[/tex]

     [tex]b =7-3(2)[/tex]

     [tex]b =1[/tex]

Giving the equation to be

     [tex]y=2x-1[/tex]

What is the domain of f(x)=3^x
A. All real numbers greater than 3
B. All real numbers greater than or equal to 3
C. All nonnegative real numbers
D. All real numbers

Answers

Answer:

i think the answer is a. but not for sure

The length of the side of a square is 8 V12 in. What is the area of the square? es A) 16 V12 in? B) 64 V12 in? C) 384 in2 D) 768 in2
can you guys help this? thanks​

Answers

Answer:

D

Step-by-step explanation:

We are given that the side of a square is: 8√12.

And we want to find the area.

The area of a square is given by:

[tex]A=s^2[/tex]

Where s is the side length. Remember that all side lengths in a square are equivalent.

Therefore, by substitution, we acquire:

[tex]A=(8\sqrt{12})^2[/tex]

Evaluate. We can expand:

[tex]A=(8)^2(\sqrt{12})^2[/tex]

Simplify:

[tex]A=64(12)=768\text{ in}^2[/tex]

Hence, our final answer is D.

Need help! I think this is pretty easy but I'm missing something

Answers

Answer:

I think you have it right!

Step-by-step explanation:

if not then try to add each angle to see if you get 288

Jayce and Rylee are selling candy bars for a school fundraiser. Rylee sold 84 candy bars and raised $210. If Jayce raised $70, how many candy bars did he sell?

Answers

Answer:

Jaycee sold 28 candy bars

Step-by-step explanation:

Jayce and Rylee are selling candy bars for a school fundraiser. Rylee sold 84 candy bars and raised $210. If Jayce raised $70, how many candy bars did he sell?

From the above question:

$210 = 84 candy bars

$70 = x candy bars

Cross Multiply

210 × x = 70 × 84

x = 70 × 84/210

x = 28 candy bars

Therefore, Jaycee sold 28 candy bars

Select the ratio that is equivalent to the ratio 5 to 9.

25 to 9
5 to 45
10 to 36
25 to 45

Answers

The answer is 5 to 45

the phoenix store sells two diferent packages of colored pencils. Package a contains 6 pencils and cost $3.48. brand b contains 11 pencils, and cost $6.49. what is the difference in cost, in dollars,per pencil between the two brands which is the better buy brainly

Answers

Answer:

Difference in dollars: $3.01

Step-by-step explanation:

PLEASE HELPPP I REALLY NEED IT I DONT UNDERSTAND PART C PLEASE SOMEONE EXPLAIN TO ME AND I WILL GIVE BRAINLEST THANK YOU SM!!!!

Answers

Step-by-step explanation:

1 mile is 1760 yards

1 min is 3600 seconds

[tex] \frac{6yards}{second} \times \frac{1mile}{1760yards} \times \frac{3600seconds}{1min} = \frac{?}{?} [/tex]

then you treat the units as variables and solve. I hope I did this right heh...

The expression x[(y - w) + z] is equivalent to

Answers

Answer:

Step-by-step explanation:

we need to remove the parenthesis first

x(y-w+z)=xy-xw+xz

Other Questions
a.Line is defined as aa geometric shape that is open and moves from one point to another.b. a slowly curving path along a plane.a path through space.d. The distance or area between, around, above below,and within objects.C.Please select the best answer from the choices providedAB0.0 0.0eD Which of the following best describes the experience of the African American people in the New England colonies Explain the difference between a "definition" anda "context sentence". How many terms are in the expression below?n2+6n3 Gaby says that is equivalent to . Do you agree or disagree? Explain your thinking. HURRY . tell me if these equations have 1 solution ,no solution or infinite solutions.1. 3(x-6)+16=3x-12. 7(x-6)+7= 6x-33 . 2(x-7)+1=2x-13 How does grain used for meat production and biofuel contribute to food insecurity? Item 5A microwave is priced at $320.50. There is a 4% sales tax rate. What is the sales tax for the microwave in dollars and cents -2 2 the second power Can someone help me with a Rocks Presentation that is worth 90 points? What is the block of 10 columns in themiddle of the table called?A. Representative metalsB. Transition metals I don't know what to do. 0.1428571428571429 in the simplest form???? Better Crocker is baking a cake. She needs 2 1/4 cups of sugar and 1 1/2 cups of brown sugar. How much sugar does she need in all? Middle School Science help please. ill give brainliest Classical conditioning occurs when a particular behavior is reinforced by its consequences. Please select the best answer from the choices provided T F Melanie wants to add a direct quotation to her research paper about President Lincoln, from a book written by Joshua Wolf Shenk. Choose the correct way to cite the quotation in APA style.a. "Never had the conditions for a president-elect been so severe, and never had one seemed, by his credentials, so poorly prepared" (2005, Shenk, p. 172).b. "Never had the conditions for a president-elect been so severe, and never had one seemed, by his credentials, so poorly prepared" (Shenk, p. 172).c. "Never had the conditions for a president-elect been so severe, and never had one seemed, by his credentials, so poorly prepared" (Shenk, 2005, p. 172).d. "Never had the conditions for a president-elect been so severe, and never had one seemed, by his credentials, so poorly prepared" (Shenk, 2005).e. In "Politics and the English Language," George Orwell writes that every scrupulous writer should ask himself four questions about a piece of work. In the reaction 4A1+302 +_ Al2O3, what coefficient should be placed in front of the Al, to balance thereaction?0 1O2O 3O 4 Which one does not belong with the other three?Haggard fatigued gauntaffluent What is the primary purpose of the destination address?Choose 1 answer:It helps the router know where to send the packet.BIt helps the receiving computer reassemble the packets.It tells the router where the packet came from.DIt helps the sending computer know how long to wait before retrying.It prevents the packet from being intercepted by cybercriminals. Steam Workshop Downloader