Answer:
84
Step-by-step explanation:
none
The number of blue marbles are 126 and the number of red marbles are 24.
Given that, a bag contains 150 marbles.
What is the ratio?The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.
There are 21 blue marbles for every 4 white marbles.
Here, the ratio of blue marbles to red marbles is 21:4
The number of blue marbles = 21x and the number of red marbles =4x
So, 21x+4x=150
⇒ 25x=150
⇒ x=150/25
⇒ x=6
Then blue marbles=21x=126 and red marbles = 4x =24
Therefore, the number of blue marbles are 126 and the number of red marbles are 24.
To learn more about the ratio visit:
brainly.com/question/13419413.
#SPJ3
"Your question is incomplete, probably the complete question/missing part is:"
A bag contains 150 marbles. Some are blue, and the rest are white. There are 21 blue marbles for every 4 white marbles. How many blue marbles are in the bag?
Please help me i will give all of my points 14
Please help i need this right now
Answer:
3 7/12
Step-by-step explanation:
which two layers in this model represent parts of the earth that are mostly iron and nickel
Answer:
inner and outer core are the ones that have iron and nickel
Step-by-step explanation:
The answer is inner and outer core
2 in every 7 students will need
glasses before they turn 15. If
there are 203 students in the
freshman class, how many will
need glasses before they turn 15?
does y= x squared represent a linear function
Answer:
no
Step-by-step explanation:
most probably a linear function. y = mx +b. what you have to notice here is the X, if the X has no exponents on it, then it is usually linear, but if the X is X squared or higher then it would not be a linear function.
11.
What must the slope of a line be if it is parallel to the line
12x + 8y = -6?
A) –
B)
C) 1
D) -12
3
WIN
2
o
A
O
B
С
o o
D
Answer:
A) -3/2
Step-by-step explanation:
Slope-Intercept Form: y = mx + b
m - slope
b - y-intercept
Step 1: Write equation
12x + 8y = -6
Step 2: Write in slope-intercept form
Subtract 12x on both sides: 8y = -12x - 6Divide both sides by 8: y = -3/2x - 3/4Step 3: Find slope
Slope of a parallel line always has the same slope of the original line.
m = -3/2 (Original)
m = -3/2 (Parallel)
Elijah's father is 47. He is 17 years older than twice Elijah's age. How old is Elijah?
Answer:
let Elijah age be a
Then
2*a + 17 =47
2a=47-17
2a=30
a=15
Step-by-step explanation:
Please help being timed for test !
Last week's and this week's low temperatures are shown in the table below.
Low Temperatures for 5 Days This Week and Last Week
Low Temperatures
This Week (F)
4 10 6 9
Low Temperatures
Last Week (OF)
13 9 5 8
6
5
Which measures of center or variability are greater than 5 degrees? Select three choices
the mean of this week's temperatures
the mean of last week's temperatures
the range of this week's temperatures
the mean absolute deviation of this week's temperatures
the mean absolute deviation of last week's temperatures
Answer:
I think it B or C but hope I can help :)
Step-by-step explanation:
3. Which ordered pair is a solution of the equation y = x – 2? (1 point) (3, 1) (1, 3) (–1, 3) (3, –1)
Solve by Elimination:
4x + 8y = 20
-4x + 2y = 10
(-1,3)
(3,4)
(3,-1)
(4,3)
Answer:
(-1,3)
Step-by-step explanation:
Elimination makes solving for the system of equations much easier if it is the faster route. In this case, it is already done for you, and no multiplication is required.
First, we want to eliminate the x values completely because they are opposites and therefore cancel out. Next, you want to add the y-values and sum (20 and 10) so that you get the new equation [tex]10y=30[/tex]. To isolate you need to divide by 10 on each side which will give you [tex]y=3[/tex].
Now that you have your y-value, you can plug in your value to either of the equations and find what x is. I will use the equation 4x + 8y = 20 to solve for x. We first want to substitute in our y-value so that we get [tex]4x+8(3)=20[/tex] which is simplified to [tex]4x+24=20[/tex] now subtract by 24 on both sides to get 4x by itself to get [tex]4x=-4[/tex]. Lastly, isolate x by dividing by 4 on each side to get [tex]x=-1[/tex]
Grace is taking a road trip that is 1,133 miles long. She has already driven 978 miles. How many
more miles does Grace need to drive?
1122 miles
Answer:
155 miles
Step-by-step explanation:
URGENT!!!!! WILL MARK BRAINLIEST!!!!
Options:
AAS
SAS
AAA
ASA
What is 3(4p - 2) + 2 (5p + 2)
Answer:
p=1
Step-by-step explanation:
3(4p-2) +2(5p+2)
12p-6 + 10p + 4
12p-10p= 2p
6-4=2
2/2=1
WILL GIVE BRAINLYIST!!!
Apples are ____% of the total number of fruits.
Answer:
34%
Step-by-step explanation:
Because out of all ripe fruits is 85% of 5692000.
7.51 rounded to the nearest tenth
Answer:
7.5
Step-by-step explanation:
Answer:
7.5
Step-by-step explanation:
I am a senior so I am right
The model below is used to represent the area of a
square with a side length of /64 units.
Answer:
8
Step-by-step explanation:
Because you can count the squares on the side or you can just do the square root of 64.
What is the product of 9,028 x 100,000 written in expanded form
Answer:
902,800,000
Step-by-step explanation:
902800000, is the product of 9,028 x 100,000.
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
Here, given that,
9,028 x 100,000
=902800000
Hence, 902800000, is the product of 9,028 x 100,000.
To learn more on multiplication click:
brainly.com/question/5992872
#SPJ2
The line that passes through the points (3,0) and (-5,8) is
A.)Decreasing
B.)Increasing
C.)Horizontal
D.)Vertical
The price of one share of a company declined $2.50 per day for 4 days in a row. What is the overall change in the price of one share?
Answer:
$10
Step-by-step explanation:
$2.50 X 4
how do you right
0.125 as a whole number
Step-by-step explanation:
divide 1 by 0.1 to 5 and this will tell you what you need to multiply it by in order to make 0.125
1/0.125=8
thus : 8 *0.125 =1
−8 3/4÷2 1/6 please show me ur work
Answer:
- 4 1/26Step-by-step explanation:
Solving in steps:
- 8 3/4 ÷ 2 1/6 =- 35/4 ÷ 13/6 =- 35/4 × 6/13 = - 35/2 × 3/13 =- 105/26 =- 4 1/26solve for y
2/3+y -1/9=7/9
Answer: y = 2/9
..............................
solve each inequality and graph the solutions , ILL MARK BRAINLIST !!!!
Answer:
see below
Step-by-step explanation:
2d+21 ≤11
Subtract 21
2d+21-21 ≤11 -21
2d ≤-10
Divide by 2
2d/2 ≤-10/2
d≤-5
Why is this number not in scientific notation?
36.5 x 10 6
I need help with this
Answer:
Not similar
Step-by-step explanation:
Even though
8/2=16/4,
10/3 does not have any relation to the rest. Still make sure if im right, but hope this helps!
Beverly wants to make 2 1/2 recipes of play clay for her daughter’s birthday party. How much salt will she need in all?
Answer: D
Step-by-step explanation:
To find the answer for this problem, you will need to convert all the terms into improper fractions. Since you want 2 1/2 of the recipe, you need to multiply by 2 1/2.
2 1/2 = 5/2
3 2/3 = 11/3
And then you would multiply and solve:
5/2 * 11/3 = 55/6
55/6 = 9 1/6
The answer is D :)
Answer:
There are 3 2/3 teaspoons of salt
Step-by-step explanation:
the student council is selling a dozen donuts for $15. what is the unit cost?
Answer:
$1.25
Step-by-step explanation:
15 divided by a dozen (12) is 1.25
Have a great day!
Answer:
$1.25.
Step-by-step explanation:
15/12 = $1.25
Write 27 as a product of primes.
Use index notation where appropriate.
Answer:
3 x 3 x 3 = 3^3
Step-by-step explanation:
27 as a product of it's primes = 3 x 3 x 3 In index notation= 3^3
A certain virus infects one in every 300 people. A test used to detect the virus in a person is positive 90% of the time when the person has the virus and 15% of the time when the person does not have the virus. (This 15% result is called a false positive.) Let A be the event "the person is infected" and B be the event "the person tests positive." (a) Using Bayes' Theorem, when a person tests positive, determine the probability that the person is infected. (b) Using Bayes' Theorem, when a person tests negative, determine the probability that the person is not infected.
Answer:
a) P[A/B] = 0,019 or P[A/B] = 1,9 %
b) P[A- /B-] = 0,9996 or P[A- /B-] = 99,96 %
Step-by-step explanation:
Bayes Theorem :
P[A/B] = P(A) * P[B/A] / P(B)
The branches of events are as follows
Condition 1 real infection 1/300 and not infection 299/300
Then
1.- 1/300 299/300
When the test is done (virus present) 0,9 (+) 0,15 (-)
2.- 299/300
When the test is done ( no virus ) 0,15 (+) 0,85 (-)
Then:
P(A) = event person infected P(B) = person test positive
a) P[A/B] = P(A) * P[B/A] / P(B)
where P(A) = 1/300 = 0,0033 P[B/A] = 0,9
Then P(A) * P[B/A] = 0,0033*0,9 = 0,00297
P(B) is ( 1/300 )*0,9 + (299/300)*0,15
P(B) = 0,0033*0,9 + 0,9966*0,15 ⇒ P(B) = 0,1524
Finally
P[A/B] = 0,00297 /0,1524
P[A/B] = 0,019 or P[A/B] = 1,9 %
b) Following sames steps:
P[A- /B-] = (299/300) * 0,85 / (299/300) * 0,85 + (1/300 * 0,1)
P[A- /B-] = 0,8471 /0,8474
P[A- /B-] = 0,9996 or P[A- /B-] = 99,96 %
Can someone help me please
Answer:
The ratio is 6
What is 15% of 90?
O 13.5
O 6
O 600
Answer:
13.5
Step-by-step explanation:
Answer:
13.5
Step-by-step explanation:
What number is 15% of 90?
The calculated percentage of the number 15% of 90 would be 13.5.
If this helps please mark brainliest.
