Answer:
The answer is 9
Step-by-step explanation:
The number marbles were neither red nor yellow is 9.
Given that, a bag of 28 marbles 1/4 the marbles were red and 3/7 were yellow.
What is the 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.
Now, the number of red marbles = 1/4 × 28
= 7
The number of yellow marbles = 3/7 × 28
= 12
Total number of red and yellow marbles = 7+12 = 19
Neither red nor yellow = 28-19=9
Therefore, the number marbles were neither red nor yellow is 9.
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An undergraduate class has 24 biology majors and 17 chemistry majors. Eight students must be chosen at random to represent an event organizing committee. What is the probability of choosing exactly two chemistry majors
Answer: 0.19158
Step-by-step explanation:
Given: An undergraduate class has 24 biology majors and 17 chemistry majors.
Total students needs to be selected = 8
Number of ways to select 8 students out of 41= [tex]^{41}C_8[/tex]
Number of ways to select exactly two chemistry majors (i.e. rest 6 will be biology majors) = [tex]^{24}C_6\times ^{17}C_2[/tex]
Required probability = [tex]\dfrac{^{24}C_6\times ^{17}C_2}{^{41}C_8}[/tex]
[tex]=\dfrac{\dfrac{24!}{6!(24-6)!}\times\dfrac{17!}{2!(17-2)!}}{\dfrac{41!}{8!(41-8)!}}\\\\=\dfrac{134596\times136}{95548245}\\\\= 0.19158[/tex]
The probability of choosing exactly two chemistry majors = 0.19158
A light aircraft Mies 345 km on 69 liters of fuel How much fuel is needed for a journey
of 470 km2
Select one
a 93 liters
6.94 liters
c. 95 mers
d 92 iters
e 96 mers
h
Next page
Answer:
94
Step-by-step explanation:
A car is traveling at a constant speed.It travels 3 1/2 miles in 5 1/4 minutes. How many minutes will it take the car to travel 70 miles
Answer:
The answer is 122 1/2 minutes.
Step-by-step explanation:
I got this answer by first subtracting 5.25-3.50=1.75 and that was how many minutes it took per mile then I multiplied 1.75x70=122.50 to get my answer.
If my answer is wrong im sorry this is my first one on this site.
What is the value of the expression when a = 4, b = 3 , and c = 10? 3a4b−c
Answer:
134
Step-by-step explanation:
(3 x 4) x (4 x 3) - 10
12 x 12 - 10
144 - 10
134
If aABC is reflected across the yaxis, what are the coordinates of A?
A(-2,-5)
B(-2,5)
C(-5,-3)
D(2,5)
Answer:
(-2, -5)
Step-by-step explanation:
Take (-2, 5) and flip it over the y- axis
(-2,-5)
Hope this helps :)
What is the unit rate for $320 for 18 ft squared to the nearest hundredth?
A box contains blue chips and red chips. A person selects two chips without replacement. If the probability of selecting a blue chip and a red chip is , and the probability of selecting a blue chip on the first draw is , find the probability of selecting the red chip on the second draw, given that the first chip selected was a blue chip.
Answer:
Prob ( 2nd Red 'given' 1st Blue ) = 0.8 = 4/5
Step-by-step explanation:
Prob ( A I B ) = Prob (A ⋂ B) / P (B)
Prob ( 2nd Red 'given' 1st Blue ) = P ( 2nd Red & 1st Blue ) / P ( 1st blue)
P ( 1st blue & 2nd red ) = 32/128 , P ( 1st blue ) = 5/16
So, P ( 2nd Red I 1st Blue ) = ( 32 / 128 ) / ( 5/16 )
= 0.8 = 4/5
Answer:
4/5
Step-by-step explanation:
Please and thank you :))
Brady ordered chicken nuggets at McDonald's and was given 10 chicken nuggets by his friend. After eating half of them, Brady had 6 chicken nuggets left. How many did Brady order?
1) Define your variable:
2) Write an equation that models the relationship described:
3) Solve the equation:
How many two-digit numbers are there that have 6 and 8 as factors
If you are saying only positive 6 and 8, then there is only ONE.
Which gives you 48.
But if you are sayin both positive and negative, then there is two, 48,-48.
Because you multiply -6,8.
Hope this helped you, and please consider marking branliest
The quadratic equation f(x)= x^2 has...
A. No zeros
B. Exactly one zero
C. Exactly two zeros
D. More than two zeros
E. None of the above
It has exactly two zeros .
f (x) = x^2 + 0x + 0 is it's extended form so I think the answre is number B.
A school district raises $7 a day by placing an ad on a school bus. If the ad runs 5 days a week for 39 weeks, how much money will the ad raise for the school district?
A$1,365
B$2,730
C$1,540
D$1,955
Answer:
It's probably 1,365
Step-by-step explanation:
I just had that question and when I found out no one answered then I guessed and it just said "wonderful!" so that's most likely the answer
Which equation is represented by the phrase “a number increased by three equals 10”
Answer:
The equation can be represented as:
x + 3 = 10
Answer:
X + 3 + 10
Step-by-step explanation:
The time spent waiting in the line is approximately normally distributed. The mean waiting time is 55 minutes and the standard deviation of the waiting time is 33 minutes. Find the probability that a person will wait for more than 88 minutes. Round your answer to four decimal places.
Answer:
Zero.
Step-by-step explanation:
The variable here is t where t is = time spent waiting in the line
The values for this variable and in this study, are normally distributed.
The mean waiting time = 55 minutes
The standard deviation = 33 minutes
What is the probability that t is greater than 88 minutes?
Now, the confidence interval about the mean for this study is:
[55-33], [55+33] = [22, 88]
Therefore, all values of t fall within this lower and upper limit or interval.
If that is the case, and recalling also that the distribution of values is normal, then it is impossible for t to be greater than 88 minutes.
Hence, P[t>88] = 0
To 4 decimal places, that would be 0.0000
What is the standard form of the equation of the circle in the graph
Answer:
the dot is the 0 rember dat
Step-by-step explanation:
Answer:it’s c
Step-by-step explanation:
the questions is c
Convert 54 2/7 to a fraction in lowest term and please work the problem out for me so I can understand how you got the answer thank you
Answer: 19/35
1) Put it over 100.
(54 2/7)/100
2)Simplify
(54 2/7)/100 = 19/35
[tex]54(\frac{2}{7})[/tex]% can be converted into a fraction of [tex]\frac{19}{140}[/tex].
What is a fraction?"A fraction represents a part of a whole or, more generally, any number of equal parts."
The given percentage of the number is
[tex]= 54(\frac{2}{7})[/tex]%
[tex]= \frac{380}{(7)(100)}[/tex]
[tex]= \frac{19}{7(20)}[/tex]
[tex]= \frac{19}{140}[/tex]
Therefore, the required fraction is [tex]\frac{19}{140}[/tex]
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What are the solutions to the equation (2x - 5)(3x – 1) = 0?
O x=-ž or x = -1
O ž
O x=b or x = 1
O x = 5 or x = 3
O x = 5 or x = 1
Step-by-step explanation:
6x²-2x-15x+5=0
6x²-17x+5=0
[tex]x = \frac{17 + - \sqrt{ {17}^{2} - 4 \times 6 \times 5 } }{2 \times 6} [/tex]
[tex]x = \frac{17 + - 13}{12} [/tex]
x1= 5/2 x2= 1/3
The solutions of the given equation (2x-5)(3x-1)=0 are x=5/2 or x=1/3.
The given equation is (2x-5)(3x-1)=0.
Here, 2x(3x-1)-5(3x-1)=0
6x²-2x-15x+5=0
6x²-17x+5=0
(2x-5)(3x-1)=0
(2x-5)=0 or (3x-1)=0
2x=5 or 3x=1
Solution of quadratic equations are x=5/2 or x=1/3
Therefore, the solutions of the given equation are x=5/2 or x=1/3.
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what is 1/4 mutipled by 2 1/2
Answer:
5/8
Step-by-step explanation:
Simplify the following:
(2 + 1/2)/4
Put 2 + 1/2 over the common denominator 2. 2 + 1/2 = (2×2)/2 + 1/2:
((2×2)/2 + 1/2)/4
2×2 = 4:
(4/2 + 1/2)/4
4/2 + 1/2 = (4 + 1)/2:
((4 + 1)/2)/4
4 + 1 = 5:
(5/2)/4
5/2×1/4 = 5/(2×4):
5/(2×4)
2×4 = 8:
Answer: 5/8
If
c
=
6
, evaluate the following expression:
c
2
Answer:
36
Step-by-step explanation:
Step 1: Define
c = 6
c²
Step 2: Substitute and Evaluate
6²
36
A number is 256 more than 594.
What is the number?
Answer:
594+256=850
x-594=256
Answer:
[tex]the \: number \: is \: 850.[/tex]
Step-by-step explanation:
[tex]if \: a\: number \: is \: 256 \: more \: than \: 594. \: then \\ let \: the \: number \: be \: x .\\ the \: then \: equation \: for \: the \: expression \: is : \\ x = 594 + 256 \\ x = 850.[/tex]
♨Rage♨
Solve for x.
4x + 2
62°
680
A) 6
C) -8
B) 12
D) 8
OOOOOOOHHHHH WHHHEEEEEEEEEE
Answer:
Step-by-step explanation:
Rick
Answer:
Only thing I can think of is Lion King.
Step-by-step explanation:
=)
Jim earned $95 after working days. At this rate how many days will it take him to earn $285?
Answer:
3 days.
Step-by-step explanation:
All you need to do is take th amout you want to o have by the end of a period and divide it by hw much they make in one day.
5. You buy a hot dog for $1.19 and a water for $0.65. Part A: What is the total price of your lunch? Part B: Use the grid below to model how much you spent:
Answer:
part A is 1.84
Step-by-step explanation:
Answer:
$1.84
Step-by-step explanation:
you line up the two items and add them together:
1
1 . 1 9
+ 0. 6 5
------------------
1 . 8 4
A baseball rolls off a 1.20 m high desk and strikes the floor 0.50m away from the base of the desk. how fast was the ball rolling?
Answer:
1.01 m/s
Step-by-step explanation:
a = g = Acceleration due to gravity = [tex]9.81\ \text{m/s}^2[/tex]
t = Time
[tex]s_y[/tex] = Displacement in y direction = 1.2 m
[tex]s_x[/tex] = Displacement in x direction = 0.5 m
[tex]v_x[/tex] = Velocity in x direction
Displacement in y direction is given by
[tex]s_y=u_yt+\dfrac{1}{2}at^2\\\Rightarrow t=\sqrt{\dfrac{2s_y}{a}}\\\Rightarrow t=\sqrt{\dfrac{2\times 1.2}{9.81}\\\Rightarrow t=0.4946\ \text{s}[/tex]
[tex]s_x=v_xt\\\Rightarrow v_x=\dfrac{s_x}{t}\\\Rightarrow v_x=\dfrac{0.5}{0.4946}\\\Rightarrow v_x=1.01\ \text{m/s}[/tex]
The ball was rolling with a speed of 1.01 m/s.
A triangle has side lengths measuring 20 cm, 5 cm, and n cm. Which describes the possible values of n?
0 5 < n < 15
x
O5
0 15
0 15 < n < 25
Answer: D 15 < n < 25
Please help me with this math.
Answer:
Linear
Step-by-step explanation:
I hope this helps
The triangles are similar, and the angle bisectors are drawn from corresponding angles. what is the value of x?
Answer:
C. 6
Step-by-step explanation:
Given that both ∆s are similar, the ratio of their corresponding sides as well as the ratio of their angle bisectors would be the same.
Therefore, from the figure given, we have:
[tex] \frac{8}{x} = \frac{4}{3} [/tex]
Cross multiply
[tex] x*4 = 8*3 [/tex]
[tex] 4x = 24 [/tex]
Divide both sides by 4
[tex] x = \frac{24}{4} [/tex]
[tex] x = 6 [/tex]
what is the square root of 90
Answer:
9.48
Step-by-step explanation:
trust me ik
Answer:
9.48683298051, and you can simplifiy to watever place value they tell you to.
Step-by-step explanation:
Good luck!
32 is 20% of what number?
Answer: 160
Step-by-step explanation: 20% of 160 is 32. 100% of 160 is 160, therefore 20 percent of 160 equals 32.
Reggie ordered 30 cupcakes and a layer cake cost $15, and the total cost of the order was $45. What was the price of each cupcake
Answer:
the price of each cupcake is $1
Step-by-step explanation:
30x1=30
30+15=45
