25 red, 15 blue
======================================================
Work Shown:
b = number of blue marbles = unknown
r = number of red = 25
T = number total = 25+b
r/T = probability of getting red = 5/8
r/T = 5/8
25/(25+b) = 5/8
25*8 = 5(25+b) .... cross multiplication
200 = 125+5b
200-125 = 5b
75 = 5b
5b = 75
b = 75/5
b = 15
We have 15 blue marbles and 25 red marbles. This means there are T = r+b = 25+15 = 40 marbles total.
The proportion of red is r/T = 25/40 = (5*5)/(5*8) = 5/8 to help confirm we have the correct value for b.
If x varies inversely as y, which statement is true?
Answer: The Inverse variation
Step-by-step explanation:
The phrase “ y varies inversely as x” or “ y is inversely proportional to x” means that as x gets bigger, y gets smaller, or vice versa. This concept is translated in two ways. yx = k for some constant k, called the constant of proportionality.
6/8 of a gallon of orange juice is left. Six thirsty people want an equal amount of orange juice. How much does each person get?
Answer:
they each get 1/8 of a gallon of orange juice
Step-by-step explanation:
factorise the following, with steps
Answer:
Step-by-step explanation:
1) Sum = - 9
Product = -36
Factors = -12 , 3 {-12 + 3 = -9 & -12*3 = -36}
3a² - 9a - 12 = 3a² + 3a - 12a - 12
=3a(a + 1) - 12(a + 1)
= (a + 1) (3a - 12)
2) 4a² + 38a - 20 = 4a² + 40a - 2a - 20
=4a(a + 10) - 2(a + 10)
=(a + 10)(4a - 2)
3) 11a² + 30a - 9 = 11a² + 33a - 3a - 9
= 11a(a + 3) - 3(a + 3)
=(a + 3)(11a - 3)
The tape diagram represents an equation.
Answer:
y² = 7
Step-by-step explanation:
Which statement is true? 13/14=169/182 13/14<169/182 13/14>169/182
pls help me
Answer: 13/14 = 169/182
Step-by-step explanation:
If you do 13 x 182 = 2,366
And then do 14 x 169 = 2,366
Making both sides equal if you multiple the numerator by denominator using cross multiplication
The fraction number 13/14 is equal to the fraction number 169/182. Then the true statement is A.
What is Algebra?Algebra is the study of mathematical symbols, while logic is the manipulation of those icons.
The product is another name for it. If the same thing, n, is delivered to m different people, we merely multiply them.
The fraction number is given below.
⇒ 13/14 and 169/182
Multiply the fraction number 13/14 by 13 in numerator and denominator. Then the expression is written as,
⇒ (13 x 13)/(14 x 13)
⇒ 196 / 182
The fraction number 13/14 is equal to the fraction number 169/182. Then the true statement is A.
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Hello, please help me with this as well, but show me example how you worked it out?
33 + - 5
Answer: 28
Step-by-step explanation: A positive (+) and a negative (-) together make it a negative (-) which takes the positive away (+) making it 33 - 5 = 28
Answer:
28
Step-by-step explanation:
Subtract 33 - 5. You should get 28. But since the greater number is positive, the answer will be positive.
The pictures is where my question is someone please answer it.
Answer:
functions: first one, third one, fifth one, seventh one, eigth one
the rest are not function
Step-by-step explanation:
if it is a function it either passes the line test or it doesnt have two outputs
HELLP MEEEEEE
PLEASE
Answer:
x = [tex]\frac{5}{4} + \frac{ \sqrt{5} }{4}[/tex]
x = [tex]\frac{5}{4} - \frac{ \sqrt{5} }{4}[/tex]
Step-by-step explanation:
Quadratic equation:
[tex]x = \frac{-b +- \sqrt{b^2 - 4ac} }{2a}[/tex]
The equation is:
[tex]4x^2 - 10x + 5 = 0\\[/tex]
So:
a = 4
b = -10
c = 5
Plug the variables into the quadratic equation:
[tex]x = \frac{-(-10) +- \sqrt{(-10)^2 - (4 * 4 * 5)} }{(2 * 4)}[/tex]
[tex]x = \frac{\sqrt{10 +- \sqrt{100 - 80} } }{8}[/tex]
[tex]x = \frac{10 + \sqrt{20} }{8}[/tex]
Divide both sides by 8:
10 ÷ 8 = [tex]\frac{5}{4}[/tex]
[tex]\sqrt{20}[/tex] ÷ 8 = [tex]\frac{\sqrt{5}}{4}[/tex]
[tex]\frac{5}{4}[/tex] +- [tex]\frac{\sqrt{5}}{4}[/tex]
This means that the solutions that satisfy the equation is:
x = [tex]\frac{5}{4} + \frac{ \sqrt{5} }{4}[/tex]
x = [tex]\frac{5}{4} - \frac{ \sqrt{5} }{4}[/tex]
Hope this helps!
How many solutions does the system have?\begin{cases} y = 9x-5 \\\\ y = 9x+6 \end{cases}⎩⎪⎪⎨⎪⎪⎧y=9x−5y=9x+6Choose 1 answer:Choose 1 answer:(Choice A)AExactly one solution(Choice B)BNo solutions(Choice C)CInfinitely many solutions
The solution to the given equations has infinitely many solutions
Given the following set of equations:
y = 9x - 5
y = 9x + 6
Equating both expressions
9x - 5 = 9x + 6
Collect the like terms
9x - 9x = 6 + 5
0x = 11
x = 11/0
x = ∞
This shows the solution has infinitely many solutions
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Answer: b
Step-by-step explanation: bc khan
Someone help me please
Answer:
2,4
Step-by-step explanation:
What does m represent in the equation y = mx + b?
A. the y-intercept of the
graph of y = mx + b
B. the slope of the graph of
y = mx + b
C. the run in the ratio rise
/ run
D. None of these
Answer:
B. the slope of the graph of y = mx + b
Step-by-step explanation:
m is the slope.
y is the y value
x is the x value
b is the y intercept
the answer is
d. none of these
Help please!!!!!!!!!!!! I need help
Answer:
The slope of Function A is less than the slope of Function B.
Step-by-step explanation:
Using the slope formula:
m = (y2 - y1)/(x2 - x1)
and the following ordered pairs from Function A:
(x1, y1) = (-5, -3)
(x2, y2) = (-10, -8)
m = (y2 - y1)/(x2 - x1)
[tex]m = \frac{-8 - (-3)}{-10 - (-5)} = \frac{-8 +3}{-10+5} = \frac{-5}{-5} = 1[/tex]
Since Function A's slope = 1, and Function B's slope = 4, then it means that the slope of Function A is lesser than the slope of Function B.
If y = 132 when x =11, what is the value of y when x = 17?
Answer:
204
Step-by-step explanation:
4/100 fraction as percent
Answer:
4%
Step-by-step explanation:
have a lovely day <3
Answer:
4% is 4/100 as a percent
just take the fraction and turn it into a fraction out of 100 which this already is and then the percent is the numerator
You put 56 green marbles and 24 yellow marbles into bags. Each bag has the same number of green marbles and the same number of yellow marbles. What is the greatest possible number of bags you can make using all the marbles? How many green marbles are in each bag? How many yellow marbles?
Answer:
8 bags
7 green marbles and 3 yellow marbles
Step-by-step explanation:
Find the GCF of 24 and 56
24 = 4 x 6
= 2 x 2 x 2 x 3
56 = 7 x 8
= 7 x 4 x 2
= 7 x 2 x 2 x 2
The common factors are - 2 x 2 x 2, which is 8.
So the greatest number of bags they can make is 8
Divide the amount of marbles by the number of bags
24 yellow marbles and 8 bags, so 24/8 is 3
56 green marbles and 8 bags, so 56/8 is 7
Hope this helps, let me know if you have any questions
I’m giving the right
Answer brainlyest and 5 star rating
Answer:
the first one i think sorry it im wrong
Step-by-step explanation:
10+10= hhihihhhiihihihih
Answer:
10+10=1010
Step-by-step explanation:
brainliest?
Answer:
20 lol
And hi!
Help pls :) thanks!!!!!
Given :-
A bag has 20 counters .16 are green .To find :-
The probability that it is green .Solution :-
As we know that ,
P = Total no. of favourable outcomes/Total number of possible outcomesSubstitute ,
P(of getting a green ) = 16/20 P(of getting a green ) = 4/5Answer:16/20 equals 4/5
Step-by-step explanation:they are asking what is the probability that it is green so we know that 16 counters is green and total counters is 20 so it’s 16/20 and then you simplify it the answer is 4/5
what is the sum of the first 30 even numbers i added them all up and got 300 but lots of people are getting diffrent answers some how?
Find the range of data set 10, 18, 21, 28, 12, 20
Answer:
range 18
Step-by-step explanation:
Answer:
18
Step-by-step explanation:
1. The range of a data set is the difference between the largest and smallest number. In this case, the largest number is 28, and the smallest number is 10.
[tex]28 - 10[/tex] [tex]18[/tex]Therefore, the range is 18.
Arrange in ascending order:
7,85,460 ; 7,58,406 ; 7,85,046 ; 7,85,640.
Answer:
7,58,406 , 7,85,046 , 7,85,460 , 7,85,640
Step-by-step explanation:
please help i reward brainliest ;)
Leila runs at 12 miles per hour. Find the number of miles she can travel if she runs for 3 more than t hours.
Answer:
If she runs for three hours, then she'll run 36 miles
Going at the speed she is going, Leila can travel a distance of 12(3 + t).
The distance that a person can travel is found by:
= Speed x time
The speed here is 12 miles per hour
Time = 3 more than t hours = (3 + t hours)
The distance Leila would have gone is therefore:
= 12 x (3 + t)
= 12 (3 + t)
In conclusion, as the question is not complete, the relevant expression to find the distance is 12 ( 3 + t)
Find out more at https://brainly.com/question/11317310.
Find the value of X. Show your work.
Answer:
x = 3
Step-by-step explanation:
The traingels are similar so we can conpare sides.
3 is to 18 as 2 is to 4x or
3/18 = 2/4x
1/6 = 1/2x
6 = 2x
3 = x
70 minutes for 24 songs
=
[blank] minutes for 12 songs
Answer:
35
Step-by-step explanation:
70 minutes for 24 songs
70/2 minutes for 24/2 songs
35 minutes for 12 songs.
Answer:
35 minutes for 12 songs
Step-by-step explanation:
hope this helps
Can y'all help me this question ASAP this all I need
70 POINTS PLEASE HELP GIVING BRAINLIEST
Sally bought the pizza that was shown above for lunch, which was cut into 10 equal slices, what percentage of the pizza did sally eat if she had four slices?
Answers:
20%
30%
40%
50%
Answer:
the answer would be 40%.
A cleaning solution uses 5 cups of soap for every 2 cups of vinegar. If Emery put 4 cups of soap in a container, how
many cups of vinegar must she use?
1.6 cups of vinegar used for 4 cups of soap.
What is Unitary Method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given:
For 5 cups of soap = 2 cups of vinegar
For 1 cups of soap = 2/5 cups of vinegar used.
Now we have to find how much vinegar required for 4 cups of soap.
So, for 4 cups of soap
=2/5 * 4
=8/5
=1.6 cups of vinegar used.
Hence, 1.6 cups of vinegar used.
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HELP ME I WILL GIVE YOU BRAINLIEST AND A 5.0 REVIEW
Power: An _________________ that has a base and an exponent.
Answer:
Base
Step-by-step explanation:
A power is the product of multiplying a number by itself. Usually, a power is represented with a base number and an exponent. The base number tells what number is being multiplied. The exponent, a small number written above and to the right of the base number, tells how many times the base number is being multiplied.
6. Kori is on a road trip to Colorado, and uses the equation y = 60x+ 200 to determine the
number of miles she has driven after x hours. If she drives for a maximum of 12
hours, what is the domain of this situation?
The domain is the set of x-values for which the equation is true.
Since the maximum time is 12 hours, then the domain is less than or equal to 12.Since time can't be negative or 0, then the minimum is greater than 0. ∴ domain would be 0 < x ≥ 12Which number line represents the solution set for the given inequality?
x + 1 ≤ -3 or -4x < -8
The solution to the system of equations is x≤ -4 and x > 2. Find the number line attached below:
Given the set of inequalities expressed as;
x + 1 ≤ -3 or -4x < -8
For the inequality expression x + 1 ≤ -3
x ≤ -3 - 1
x ≤ -4
For the inequality expression:
-4x < -8
Divide both sides by -4
-4x/-4 > -8/-4
x > 2
Hence the solution to the system of equations is x≤ -4 and x > 2. Find the number line attached below:
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