There are 3 blue marbles, 8 red marbles, 4 green marbles and 5 yellow marbles. What number represents 50% of the marbles?

Answers

Answer 1
10 marbles represent 50% of the marbles. To get this, turn the percent into a decimal. 50% equals 0.50. You the multiply the total amount of marbles (20) by the decimal, equaling 10 marbles.
Answer 2
The answer is 10.

Because you need the number that represents 50% of all the marbles. so you have to add them all up:

3+8+4+5=20

50% means half, which means you have to divide the total by 2.

20÷2=10

Related Questions

How many points are collinear with points C and D

Answers

Only point U.

Therefore your answer is ONE.

Answer:

B) One

Step-by-step explanation:

If the points are collinear, then they lie on the same line.

Here U is lie on the same line where C and D points lie.

Therefore, answer is B) One.

Hope this will helpful.

Thank you.

Find the equation of a line given two points P1(?4, 8), P2(?4, ?7)

Answers

Using the distance formula, it equals sqrt(1)

A dolphin is swimming with her friend. The dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. What is the position of the dolphin's friend relative to the surface of the water?

Answers

Final answer:

The dolphin's friend is 8.63 meters below the surface of the water relative to the dolphin's jumping point.

Explanation:

To solve this problem, we can use the kinematic equation that relates initial velocity, final velocity, acceleration, and displacement:

vf² = vi² + 2ad

Knowns:Plug in the knowns: (-13.0 m/s)² = (0 m/s)² + 2(-9.8 m/s²)(d)Simplify and solve for d: d = (169 m²/s²) / (-19.6 m/s²)Calculating: d = -8.63 m

The positive value of d indicates that the dolphin's friend is 8.63 meters below the surface of the water relative to the dolphin's jumping point.

The dolphin's friend is 5.3 meters below the surface of the water.

Let's reassess the problem with the given constraints more carefully.

We need to find the position of the dolphin's friend relative to the surface of the water.

1. Dolphin's height above the water:

[tex]\[ 4.5 \text{ meters above the surface} \][/tex]

2. Distance between the dolphin and her friend:

[tex]\[ 9.8 \text{ meters below the dolphin} \][/tex]

Since the friend is swimming below the dolphin, we need to subtract this distance from the height of the dolphin above the surface to find the position of the friend relative to the water surface.

3. Calculate the position of the dolphin's friend:

[tex]\[ \text{Position of friend} = 4.5 \text{ meters} - 9.8 \text{ meters} \][/tex]

[tex]\[ \text{Position of friend} = -5.3 \text{ meters} \][/tex]

This means the dolphin's friend is 5.3 meters below the surface of the water.

Question 1 of 10 Diana invested $3000 in a savings account for 3 years. She earned $450 in interest over that time period. What interest rate did she earn? Use the formula I=Prt to find your answer, where I is interest, P is principal, r is rate and t is time. Enter your solution in decimal form rounded to the nearest hundredth. For example, if your solution is 12%, you would enter 0.12

Answers

Hey there!!

The question states that a sum is invested which is $3000 and hence, this would be counted as the principle amount or the principle sum.

The term given is 3 years, which gives us the idea that this interest is being counted or being active for 3 years.

She ( Diana ) earned the sum $450 at the end of three years. This means, the simple interest is $450.

Never get confused with the principle amount, principle sum and interest.

Principle amount = Principle sum + The interest.

Formula given :

I = prt

'p' is denoted as the principle sum, r is the rate and the t is the term or the number of years.

Now, plugging in all the values :

... 450 = 3000×r×3

... 450 = 9000×r

... r = 450 / 9000

... r = 0.05

... r = 5%

As we need the answer in the decimal form, the answer would be 0.05

Hope my answer helps!!

Vector's map has the scale missing. He knows that the distance from the lake to the youth center is 8 miles. On the map, they are 2 inches apart. What is the scale for vector's map

Answers

We can set up a proportion here. On map scales, the scale goes like:

“1 (length on the map) : x (real life length)”
Here, we have 2 : 8. We need to make it so the first number is 1, because thats easier for measuring.

2 : 8 /divide both sides by 2
1 : 4

The scale would be 1in : 4mi (in other words, 1 inch on the map corresponds to 4 miles in real life).

Tim is buying packages of paper plates & cups. He wants to have equal amounts of each, but plates come in 24 per pack and cups come in 16 per pack. What is the least amount of plates & cups Tim will buy to get the same number of each ? A. 8 B. 16 C. 24 D. 48

Answers

D) 48

2 packs of plates is 48 plates and 3 packs of cups os 48 plates.

You work 1.15 hours on your English Homework and 1.75 hours in your math homework. Your science homework takes 1.05 hours less than your math homework. How many more hours do you work on your homework? The answer is 4 but it's saying it's wrong

Answers

Answer:

Total time taken for doing home work = 3.6 hours.

Explanation:

Time taken for English home work = 1.15 hours.

Time taken for Mathematics home work = 1.75 hours.

 Time taken for Science home work = Time taken for Mathematics home work - 1.05 hours = 1.75 - 1.05 = 0.7 hours

 Total time taken for doing home work = 1.15 + 1.75 + 0.7 = 3.6 hours.

So the answer is not 4 hours, it is 3.6 hours, that is why it is showing it as wrong.

30 points! How do I factor 6x^2+x-15

Using the Grid Box Method?


Thank you! Thanks for helping - that was all of my factoring problems! :D ^.^ Most educational sites explain the factoring methods well, but in a very confusing way! :'3 Thank you so much again; have an awesome day! :)

Answers

Now for this you would have to think what two numbers multiplied to get 6x^2. Let's say for example 3x and 2x=6x^2

And now what two numbers multiplied together make -15, For example it can be 5 and -3

Now your ANSWER: (3x+5)(2x-3)

The answer is (3x+15)(2x-3)

Find all points on the​ x-axis that are 14 units from the point (3,-7).

Answers

Answer:

  (3±√147, 0) ≈ (-9.124, 0) and (15.124, 0)

Step-by-step explanation:

The points (x, 0) satisfy the distance formula:

  d = 14 = √((x -3)² +(0+7)²)

  196 = (x -3)² +49 . . . . . square both sides

  147 = (x -3)² . . . . . . . . . subtract 49

  3 ±√147 = x . . . . . . . . . take the square root and add 3

The points at distance 14 from (3, -7) on the x-axis are (3±√147, 0).

Amy wants to carpet a room that is 12 feet by 8 feet.How many square yards of carpet will she need to complete the room?

Answers

96 square yards would complete the room

Each employee can essemble 28 castles per hour. How many employees worked each hour? (What is the answer to this?)

Answers

we need to know the total castles made per hour, let it be x,
x/28=number of employees

Which pair is the gcf of 1, 30 and 70, 24 and 44, 12 and 30, and 16 and 21

Answers

The GCF is 1.


Explanation:

1 has: 1 (LOL)

12 has: 1,2,3,4,6,12

16 has: 1,2,4,8,16

21 has: 1,3,7,21

24 has: 1, 2, 3, 4, 6, 8, 12, 24

30 has:  1, 2, 3, 5, 6, 10, 15, 30

44 has:  1, 2, 4, 11, 22, 44

70 has: 1, 2, 5, 7, 10, 14, 35, 70

So therefore, The GCF is 1

Hope this helps!

-Queenb369


P.S Could you possible give me the brainlist if i get it right.

Please help asap 35 pts

Answers

I’m pretty sure the answer is B. Add 15 to 73. Divide 88 by 8 to get 11. A>11

[tex]8a - 15 > 73 \\ 8a > 88 \\ a > 11[/tex]
Your answer is B because a has to be greater than 11

If eight trash bags last for thirty days then how many trash bags do you need for 180 days

Answers

Let's Just See How Many Times 30 Goes Into 180

[tex] \frac{180}{30} = 6[/tex]
Since 8 trash bags last 30 days, let's multiply

[tex]6 \times 8 = 48 \: bags[/tex]
ANSWER

You'll Need 48 Trash Bags For 180 Days

Set up the proportion.  Then cross multiply and isolate the variable to solve.

[tex]\frac{8(trash bags)}{30 (days)} = \frac{x (trash bags)}{180 (days)}[/tex]

8(180)= 30(x)

[tex]\frac{8(180)}{30} = \frac{30x}{30}[/tex]

8(6) = x

48 = x

Answer: 48 trash bags

Please help, I would appreciate it!!

Answers

Two Angles are Supplementary when they add up to 180°.

m∠2 + m∠1 = 180° (*)

If ∠1 ≅ ∠3, then m∠1 = m∠3.

Substitute to the (*)

m∠2 + m∠3 = 180°

Therefore ∠2 and ∠3 are supplementary.

Two bags contain marbels. Bag A conatains 112 marbles, and bag B contains 140 marbles. What percent fewer marbles does Bag A have than bag B

Answers

20% less marbles than bag b

The triangle shown below must be congruent
True or false

Answers

That would be FALSE

They have the same angles, so they're similar triangles.  For them to be congruent, the corresponding sides must have equal length.  Here we have two sides of length 7, but they're not corresponding sides.  If on the second triangle the 7 was the length of the side between the 60 and 62 degree vertices then we'd have equal corresponding sides and congruent triangles.


Answer: no

Step-by-step explanation: this answer would be FALSEEE

Use the graph of the parent function f(x)=√x, to describe the transformation for the graph of g(x)=√x-5

Answers

Answer : C

[tex]f(x)= \sqrt{x}[/tex]

[tex]g(x)= \sqrt{x-5}[/tex]

Parent function is f(x). In g(x) 5 is subtracted from x

If any number is added or subtracted from x, then we move left or right

When a number 'a' is added with x  then we shift 'a' units to the left

When a number 'a' is subtracted from x  then we shift 'a' units to the right

f(x) is our parent function. Here 5 is subtracted from x to get g(x)

For -5, the graph of g(x) is the graph of f(x) shifted right 5 units


the first answer would be C

the next 3 questions are ACB

Over the weekend koko spend a total of 16 hours working on school work she spent equal amounts of time working on 4 projects plus 2 hours working on her language arts homework how much time did she spend on each project

Answers

hours spent on project= p

4p+2=16 hours
4p=14
p=3 and a half hours

im terrible with graphs help me out...but explain it cuz im a math inclined typa person sooo.......idek just help i guess?

Answers

Answer:

14. The correct option is 2.

13. The correct option is 4.

Step-by-step explanation:

14.

The given function is

[tex]f(x)=4|x|[/tex]

The function is non-negative for all values of x. So, the function opens in upward direction.

The function uis in the form of

[tex]f(x)=k|x|[/tex]

Where, a is vertical stretch factor or compress factor.

If k>1, then it represent vertical stretch and if 0<k<1, then it represent vertical compression.

Since the value of k is 4, therefore it represents vertical stretch and option 2 is correct.

13.

The given function is

[tex]y=x^3[/tex]

The traslate form of given function is

[tex]y=(x+a)^3+b[/tex]

Where, a represents the horizontal shift and b represents the vertical shift.

If a>0, then the graph shifts left side by a units and if a<0, then the graph shifts right side by a units.

If b>0, then the graph shifts upward by b units and if b<0, then the graph shifts downward by b units.

Since the graph shifts vertically 5 units down and horizontally 4 units left, therefore the value of a is 4 and value of b is -5. The required equation is

[tex]y=(x+4)^3-5[/tex]

Therefore option 4 is correct.

a card is chosen from a standard deck of cards. what is the probability that the card is a queen, given that the card is a club?

Answers

Answer:

Probability that card is queen given that card is club is [tex]\frac{4}{13}[/tex]

Step-by-step explanation:

Given : A card is chosen from a standard deck of cards.

To find : What is the probability that the card is a queen, given that the card is a club?

Solution : It is the conditional probability

[tex]P(A|B)=\frac{P(A\cap B)}{P(B)}[/tex]

Let A is probability that card is queen.

Let B is the probability that card is a club.

Probability that card is queen given card is club [tex]P(A\cap B)=\frac{4}{52}=\frac{1}{13}[/tex]

Probability that card is club from deck of 52 cards [tex]P(B)=\frac{13}{52}=\frac{1}{4}[/tex]

To find probability that card is queen given that card is club [tex]P(A|B)[/tex]

[tex]P(A|B)=\frac{P(A\cap B)}{P(B)}[/tex]

[tex]P(A|B)=\frac{\frac{1}{13}}{\frac{1}{4}}[/tex]

[tex]P(A|B)=\frac{1\times4}{13\times 1}=\frac{4}{13}[/tex]

Therefore, Option A is correct.

Probability that card is queen given that card is club is [tex]\frac{4}{13}[/tex]

Answer:

the correct answer was 1/13

Step-by-step explanation:

i took my test and put 4/13 which was wrong and said that 1/13 is the right answer

Olivia divided a fraction by 3/4. The quotient was a whole number. Was the the dividend less than 3/4? Explain

Answers

Let's assume

Let's assume that fraction as 'x'

and whole number as 'n'

Olivia divided a fraction by 3/4

so, we get

[tex]\frac{x}{\frac{3}{4} }[/tex]

The quotient was a whole number

so, we get

[tex]\frac{x}{\frac{3}{4} }=n[/tex]

now, we can solve for x

[tex]\frac{3}{4}\times \frac{x}{\frac{3}{4} }=\frac{3}{4}\times n[/tex]

[tex]x=\frac{3n}{4}[/tex]

where n is whole numbers

At n=0:

[tex]x=\frac{3*0}{4}[/tex]

[tex]x=0[/tex]

here , x is not fraction

so, n=0 is not possible

At n=1:

[tex]x=\frac{3*1}{4}[/tex]

[tex]x=\frac{3}{4}[/tex]

At n=2:

[tex]x=\frac{3*2}{4}[/tex]

[tex]x=\frac{3}{2}[/tex]

we know that x is dividend

and x can be equal to 3/4

and greater than 3/4

But it can not be less than 3/4..............Answer

Answer:

Let's assume

Let's assume that fraction as 'x'

and whole number as 'n'

Olivia divided a fraction by 3/4

so, we get

The quotient was a whole number

so, we get

now, we can solve for x

where n is whole numbers

At n=0:

here , x is not fraction

so, n=0 is not possible

At n=1:

At n=2:

we know that x is dividend

and x can be equal to 3/4

and greater than 3/4

But it can not be less than 3/4..............Answer

Step-by-step explanation:

Find two consecutive positive odd no. Such tht the sum of thier squares is equal to 130

Answers

7 squared is 49, and 9 squared is 81. 49+81=130   7,9 are your answers

If f(x) = 3x-2 what is the value of 5
A. 9
B. 13
C. 15
D. 33

Answers

B

Assuming you mean the value of f(5)

If so then substitute x = 5 into f(x)

f(5) = (3 × 5) - 2 = 15 - 2 = 13 → B


Use the two points (4,92) and (1,82) from the scatterplot and the slope formula to find the slope of a linear model (regression line), rounded to three decimal places. Show your work. (5 points)

Using the slope and a point from question (a) to write the equation of the linear model in point-slope form? (5 points)

Simplify the equation you wrote in problem (b) into slope-intercept form. Show your work. (5 points)

Answers

Answer:

a) The slope is : 3.333

b) [tex](y-92)=3.333(x-4)[/tex]

c) [tex]y=3.333x+78.66[/tex]


Step-by-step explanation:

a) - The formula to calculate the slope is:

[tex]m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

- Use the given points to calculate the slope:

[tex]y_{2}=82\\y_{1}=92\\x_{2}=1\\x_{1}=4[/tex]

[tex]m=\frac{82-92}{1-4}\\m=\frac{10}{3}\\m=3.333[/tex]

b) - The equation of the linear model in point-slope form is:

[tex](y-y_{1})=m(x-x_{1})[/tex]

Where [tex]m[/tex] is the slope and [tex]x_{1},y_{1}[/tex] are the coordinates of a point.

- Substitute values:

[tex](y-92)=3.333(x-4)[/tex]

c) - The equation of the linear model in slope-intercept form is:

[tex]y=mx+b[/tex]

Where [tex]m[/tex] is the slope and [tex]b[/tex] is the y-intercept.

- Let's find [tex]b[/tex]. Use one of the points given in the problem to solve for [tex]b[/tex]:

[tex]92=3.333(4)+b\\b=92-13.332\\b=78.66[/tex]

- Therefore, the equation is:

[tex]y=3.333x+78.66[/tex]

The graph of g(x) is obtained by reflecting the graph of f(x)=4|x| over the x-axis.

Which equation describes g(x)?

A) g(x)=|x−4|

B) g(x)=|x+4|

C) g(x)=−4|x|

D) g(x)=|x|−4

Answers

That would be choice C.

The graph of  4|x| is shaped like a V whose vertex is at the origin.

Every y value will be positive for y = 4|x|  as |x| is always positive  and a reflection in the x axis will make every y value negative.

Through moving up c units, the graphs of g can be determined from the graph of f. If we subtract c from f(x), the graph shifts downward. Let [tex]\bold{ h(x) = f(x) - c}[/tex]. Shifting downward c units yields this graph of h from the graph of f.

Given:

[tex]\bold{f(x)=4|x|}[/tex]

Calculation:

It is stated that its graph of [tex]g(x)[/tex] is obtained by reflecting a graph of [tex]f(x)=4|x|[/tex] over the x-axis.When a figure is reflected across the x-axis, the rule for reflection is [tex]\bold{(x,y) \to (x,-y)}[/tex].To use the preceding logic, if the given function is reflected from across the x-axis, then [tex]g(x)=-f (x)[/tex].

           [tex]\bold{g(x)=-(4|x|)}\\\\\bold{g(x)=-4|x|}\\\\[/tex]

So, the equation [tex]g(x)=-4|x|[/tex] describes [tex]g(x)[/tex].

Therefore, the final choice is "Option C".

Learn more:

brainly.com/question/6280870

Justin purchased a 20 pound pumpkin for$9.80. How much did he pay per pound

Answers

The answer would be $0.49 because
[tex]9.8 \div 20 = .49[/tex]
0.49ieieieiieieieuehehjeje

Kendall is buying a home for 119,000 she is making a 12% down payment and financing the rest with 20-year loan at 4.5% interest what is her monthly mortgage payment ?

Answers

662.46 is your answer

The required Kendall's monthly mortgage payment is $662.14.

What is interest?

Simple interest is defined as the percentage of earnings on the lending for a period of time.

Here,
Kendall's down payment is 12% of $119,000, which is:

0.12 * $119,000 = $14,280

So the amount she is financing is:

$119,000 - $14,280 = $104,720

To calculate her monthly mortgage payment, we can use the formula for a fixed-payment loan:

[tex]M = P * (r / (1 - (1 + r)^{-n}))[/tex]

First, we need to calculate the monthly interest rate. The annual interest rate is 4.5%, so the monthly interest rate is:

4.5% / 12 = 0.375%

Next, we need to calculate the total number of monthly payments. Kendall has a 20-year loan, which is:

20 years * 12 months/year = 240 months

Now we can plug in the values and solve for M:

[tex]M = $104,720 * (0.00375 / (1 - (1 + 0.00375)^{-240}))[/tex]

M = $662.14

So Kendall's monthly mortgage payment is $662.14.

Learn more about interest here:
https://brainly.com/question/20406888

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what else would need to be congruent to show that abc def by aas

Answers

The answer is A=D apex

Answer:

It's the first one, I just literally got done taking the test it was my last question anyways.

Factor the difference of two cubes completely.

x^3-64

can anyone verify this for me?

Answers

[tex]x^3-4^3 = (x-4)(x^2+4x+16)=(x-4)(x+4)(x+4)[/tex]

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