A bag contains 120 marbles. Some are red the rest are black. There are 19 red marbles for every black marble. How many red marbles are in the bag?

Answers

Answer 1

Answer:

114

Step-by-step explanation:

Ratio of red marbles to black marbles is 19:1. (Data from 3rd sentence)

19+1= 20

20 units= 120 (Data from 1st sentence)

1 unit= 120/20= 6

19 units= 120-6= 114 (Values solved in working above)

Ans: There are 114 red marbles.


Related Questions

charlie buys a 2 metre length of wood. he wasted 6 cm. what percentage did he wasted

Answers

Answer:

3%

Step-by-step explanation:

2 meter = 200cm

6cm/200cm = 3/100

3/100 x 100 = 3%

Hope this helps...

Rotations are usually how many degrees?

Answers

Answer:

360

Step-by-step explanation: a rotation is 80 times 4

Answer:

360

Step-by-step explanation:

Because that's the degree of the angle when you spin

Josh is 3 inches taller than his brother
translate the following to mathematical expressions

Answers

Answer:

J=b+3

Step-by-step explanation:

Solve the inequality for x: 4x + 8 > 2(3x + 1)

Answers

Answer:

x < 3

Step-by-step explanation:

Step 1: Write inequality

4x + 8 > 2(3x + 1)

Step 2: Solve for x

Distribute 2: 4x + 8 > 6x + 2Subtract 4x on both sides: 8 > 2x + 2Subtract 2 on both sides: 6 > 2xDivide both sides by 2: 3 > xRewrite: x < 3

Here we see that any value smaller than 3 will be a solution.

Answer the real-world problem below. Then, decide whether the answer is the GCF or the LCM. A local radio station is celebrating its 10th year on the air and is giving away prizes to callers. It is giving away a $10 bill for every 10th caller. It is also giving away free digital albums to every 8th caller. How many callers will call the radio station until someone wins both a $10 bill and a free digital album?

Answers

Answer:

LCMit will take 80 calls

Step-by-step explanation:

The solution  is  LCM

the least common multiple of 10 and 8 are

10=10,20,30,40,50,60,70,80,90,........

8= 8,16,24,32,40,48,56,64,72,80,88..........

The least common multiple is 80

therefore it will take 80 callers to call in to win both the bills

kindly let me know if you need further clarification on this

Regards

Haley has not been able to maintain the $1,200 minimum balance required to avoid
fees on her checking account. She wants to switch to a different account with a fee
of $0.25 per check and a $10.50 monthly maintenance fee. Haley wants to estimate
the fees for her new account. To the right is a summary of the checks she has written
from May to August.

Answers

Answer:

MAy to August is 3 months.So 10x3 is 30.However,theres still the cents.So 50x3 is 150.So you have one more dollar,and 50 cents.30+1 is 31.So your answer is $31.50.Ill be glad to help again

Which of these numbers rounds to 7.62

7.546
7.639
7.670
7.720


HELP mE

Answers

Answer:

7.639

Step-by-step explanation:

7.639 rounds to 7.64 which is the closest on I could find to 7.62.

Answer:

 I think the answer is 7.636

Step-by-step explanation:

Lines e and m are intersected by transversalt and ei m.
e
m
1
3
2.
5
4
7
6
8
If m_2 = 112, what is m_7?

Answers

Iguguoiycticiy 344g is tht

3/4x + 2/5 = 4x - 1/4x

Answers

Answer: x=2/15

Ya I think so.

Answer:

4/45 = x

Step-by-step explanation:

Strongly suggest that you enclose the fractional coefficients inside parentheses to reduce possible ambiguity:

(3/4)x + 2/5 = 4x - (1/4)x

Consolidate the x terms on the right side and leave the 2/5 on the left:

2/5 = (4 - 1/4 + 3/4)x, or

2/5 = (4 1/2)x   or 2/5 = (9/2)x

Solving for x:  Multiply both sides by (2/9):

(2/9)(2/5) = (2/9)(9/2)x, or:

4/45 = x

Note:  please include ALL instructions.

Pleaseeeeeee helpppppppppb

Answers

Possibly parallel? I don’t really know what it means by slope
it has a zero slope

You earn $15.25 an hour. Your brother earns $10.25 an hour. You pay $30 a week for lunches, and your brother pays $15 a week. If both of you work the same number of hours in a week, which inequality can be used to find x, the number of hours you will have to work so that the amount of money you have is greater than the amount your brother has after you both pay for lunch?

Answers

Answer:

15.25+15.25=20.50+15.25=35.75.

3 hours will give you $35.75

Step-by-step explanation: All you have to do is add till you have enough

What is the vertex form of the function y = x2 + 8x – 3

Answers

the answer would be




y=(x+4)^2−19

Answer:

the answer is y=(×+4)^2 -19

3 equals what number plus 18?

Answers

Answer:

-21

Step-by-step explanation:

-21+18=3

Fill in the table with the rule y = 2x-2 X: -3, -2, -1, 0, 1, 2, 3, 4 Y: _, _, _, _, _, _, _, _.​

Answers

Answer:

-8, -6, -4, -2, 0, 2, 4, 6

Step-by-step explanation:

The graph shows the relationship between distance driven and gallons of gas used.

Continuous graph on a coordinate plane shows distance driven, numbered 20 to 60 along the horizontal axis, and gallons of gas used, numbered 1 to 4 on the vertical axis. Solid circles appear at points (0, 0), (30, 1), (60, 2).

Use the graph to complete the statements.

The car gets
miles to the gallon.

After the car has traveled
miles, 2 and two-thirdsgallons of gas have been consumed.

Answers

Answer: 30 and 80

So the care gets *30* miles gallon.

After the car has traveled *80* miles, 2 2/3 gallons.

Answer:

30 and 80 is the answers

Step-by-step explanation:

What are the slope and the equation for the graph?

Answers

Answer:

Slope= 2/3, Equation= y=2/3x+2

Step-by-step explanation:

What is the area and the circumference of a circle with the diameter 8 m

Answers

Answer:

the area is 50.27 meters squared

Step-by-step explanation:

PLEASE HELP ITS TIMED
The inside of an oven is set to rise to a temperature of 298F . So far it has risen 76% of this amount.
Which would be the best way to estimate the number of degrees Fahrenheit the inside of the oven has risen so far?
Find 70% of 200.
Find 80% of 300.
Find 80% of 200.
Find 70% of 300.

Answers

Answer:

Find 70% of 300

Step-by-step explanation:

I calculated the different percentages, and 70% of 300 was the one that came closest to 76% of 200.

what is the value of x when
5x+20=6x+35

Answers

Answer:

x=15 or 15=x hope this helps

5x+20=6x+35
5x=6x+15
-1x=15
X=-15

What is the result when 4x3 + 4x² + 13x + 6 is divided by 2x + 1?

Answers

Answer:

2x^2+x+6

Step-by-step explanation:

if the 4x3 meant 4x^3, then im pretty sure this is the correct answer

−11−3n=−3(n + 6) please tell me the answer ahhhhh

Answers

Answer:

No solution.

Step-by-step explanation:

Distribute -3 to (n+6)
Then combine like terms, -11-3n= -3n-18
Add 3n on both sides, -11=-18
The statement can’t be solved.

A submarine begins at -212 feet below sea level. If
the submarine plans to descend at 15 feet per minutes,
how long will it take the submarine to reach a depth of
-287 feet?
A. 75 minutes C. 7 minutes
B. 8 minutes D. 5 minutes

Answers

Answer:

Step-by-step explanation:

Ending depth = -287

Starting depth= -212

Difference =      -75 feet

The submarine plans on dropping 15 feet a minute.

Time = displacement / time = -75/-15 = 5 minutes.

Answer: D

Evaluate the expressions for the given value and match them with the simplified answer.

5-x/3 for x = -3
-2 + 2x/3 for x = 6
-3 + x/2 for x = 6
2-3x/4 for x = 4

-1
0
2
6​

Answers

Answer:

1st = 6

2nd = 0

3rd = -1

4th = 2

Step-by-step explanation:

Got it right on EDGE

Hope this Helps!

Have a great day!

pls thank and rate!

Thank u and God bless!

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The solutions of the expression for the different values of x will be,

5-x/3 = 6

-2 + 2x/3 = -1

-3 + x/2  = 0

2-3x/4 = 2

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the expressions are:-

5-x/3 for x = -3

5 - (-3 / 3 ) = 6

-2 + 2x/3 for x = 6

-2 + (2 x 6 )/3 = 2

-3 + x/2 for x = 6

-3 + (6 / 2 ) = 0

2-3x/4 for x = 4

2 - ( 3 x 4 ) /4 = -1

To know more about an expression follow

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is this reasoning inductive or deductive? explain why.

1. all pennies are copper. if your friend gives you a penny, you conclude that the penny is copper colored.

2. all even numbers are divisible by 2. 28 is even. therefore, 28 is divisible by 2.

please help me out with this and also include reasoning! thank you so much!

Answers

Answer:

No. 1 is inductive, cos the evidence is based on proberbility as not all pennies are silver color, since thier color could change over time (fade)

while

No 2 is deductive since all even numners are divisible by 2, there is a full assurance of the outcome.

Answer: The reasonings are deductive. They tried to do a trick question I think.

Step-by-step explanation: There both deductive because the first sentence has a key word which is Conclude. The word might not seem to matter until you look up what  deductive means. Deductive and Inductive are different because one is specifics observation and then draw a conclusion and the other is specifics conclusion  follows a general theory. And the key word in deductive is conclusion in the first sentence it says that you conclude. Deductive means a conclusion that follows a general theory. The deductive is following a general theory which means if the facts are right then the conclusion should  be right. The deductive makes sense in the first because if the facts that all the pennies are copper is true then the penny your friend gave you should be copper. The second sentence same thing if the fact was right then any number that is even can be divisible by 2. So deductive makes sense in both sentences. Inductive makes sense it inside one on the sentences not both. Inductive makes sense inside the first because the person could have seen that the pennies were all made of copper. i think that it being deductive is a better choice that inductive and if you still are confused you can look up "difference between inductive and deductive reasoning" and go to images it should have a blue and pink picture of the definition of them. Sorry I wrote it so long you can just shortened it down for the answer.

1 1 1
-x -xxxx -x 1 1
=
11 1 1 1
x 1 1 1 1 1
X
1
1
The model represents an equation. What value of x makes the equation true?
A)
3
4
B)
9
2
3
4
D)
9
2.

Answers

Answer:

its d or b

Step-by-step explanation:

Answer:i think it is d

Step-by-step explanation:

Folgers coffee is priced at 12.88

Answers

Answer:

yes.........................................................

Step-by-step explanation:

Mr. Washington made several purchases for his printing business. The mean price of the purchases was $150, and the mean absolute deviation was $30.

Based on this information, which statement must be true?

Answers

Answer:

Two purchases were $30 apart.

Step-by-step explanation:

The mean price means the average price. The mean absolute deviation is how spread out the values are. So another synonym for spread out is apart so if you think about that the correct answer would be Two purchases were $30 apart.

Answer:

Two purchases were $30 apart in price.

Step-by-step explanation:

Suppose your purchase school supplies for $20 and lunch meat for $5 at a store sales tax of 6% is added to all non-food items in your state what is the total cost of the items.
A.$1.20
B.$21.20
C.$26.20
D.$22.60

Write a mathematical argument explaining the strategy you used to solve his problem?

Answers

Answer:

c

Step-by-step explanation:

20 +5+6%=26.20

The diagram shows , , and . Which statement can be proven true from the diagram? A. ∠DGB is supplementary to ∠EGA. B. ∠DGB is supplementary to ∠CGB. C. ∠CGB is supplementary to ∠AGD. D. ∠EGA is supplementary to ∠EGC. E. ∠EGD is supplementary to ∠CGB.

Answers

Answer:

The correct answer is B: ∠DGB is supplementary to ∠CGB. I got it right on my test.

Step-by-step explanation:

From the diagram option (B) ∠DGB is supplementary to ∠CGB can be proven true

What is Supplementary angle?

Two angles or arcs whose sum is 180 degrees.

From the given figure we can say that

∠DGB is supplementary to ∠CGB

Because ∠DGB + ∠CGB = 180 degree

Angles on a straight line add up to 180 degrees

All other options are false

Hence, Option (B) ∠DGB is supplementary to ∠CGB can be proven true

Learn more about Supplementary angle here

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HELP ASAP PLZZZZZ Which property is used in the first step to solve this equation?

4 (x minus 6) = 5. 4 x minus 24 = 5. 4 x = 29. x = StartFraction 29 Over 4 EndFraction

Answers

Answer:

Distributive Property

Step-by-step explanation:

4(x-6)=5.4x-24

4x-24=5.4x-24

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