You select a marble without looking and then put it back. If you do this 5 times, what is the best prediction possible for the number of times you will pick a pink marble?
Since the ratio of pink marbles to other marbles is 1:5 meaning only 1 pink marble for every five you pick usually, the number of times you might pick a pink marble is 1 if you did it 5 times.
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A special machine is used at a construction site to dig holes. A hole is dug to a depth of 4.75 feet when the machine hits rock. The progress slows to 3/5 feet per hour of digging. The depth of the hole must be at least 12 1/2 feet by the end of the day to stay on schedule. What is the minimum amount of time the machine must continue at its present rate to complete the hole on schedule? Select from the drop-down menus to correctly complete the statement.
Answer: 12 h ; 45 m
Step-by-step explanation:
*Important: From what I can see in this image, this appears to be a test. If this is the case, please do not cheat. In any case, here is the explanation.
What we know:
Progress has been made to 4.75Rate of digging is 3/5 mphDepth must be at least 12 1/2We need to find the minimum amount of time the machine worksHow to solve:
By setting up an algebraic equation, we can solve this.
Process:
Set up equation 4.75 + 3/5x = 12 1/2Convert 19/4 + 3/5x = 12 1/295/20 + 12/20x = 250/20
Subtract -95/20 -95/2012/20x= 155/20
Isolate x via division /(12/20) /(12/20)+Simplifyx= 12 11/20
Convert 12 h 33 mSolution: 12 ; 45
The minimum amount of time taken by the machine will be 12 hours and 55 minutes.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
An exceptional machine is utilized at a building site to dig openings. An opening is dug to a profundity of 4.75 feet when the machine hits the rock. The advancement eases back to 3/5 feet each hour of digging. The profundity of the opening should be no less than 12 ¹/₂ feet before the day's over to remain on time.
Convert the mixed fraction number into a decimal number.
12 ¹/₂ feet = 12.5 feet
Let 'x' be the time. Then the equation is given as,
(3/5)x = 12.5 - 4.75
Simplify the equation, then we have
(3/5)x = 12.5 - 4.75
(3/5)x = 7.75
x = 12.9167
x = 12 + 0.9167 x 60
x = 12 hours and 55 minutes
The base measure of time taken by the machine will be 12 hours and 55 minutes.
More about the solution of the equation link is given below.
https://brainly.com/question/545403
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Diego measured the number of cups of water in 15 bottles of various sizes. He made this line plot to show how many of each size he has. Diego then took all the bottles of the most common size and poured the water into one container. How much water is in the container? (Line plot in image)
PLZ ANSWER AS SOON AS YOU CAN!!!!!!!!!!!
The tables show the numbers of white and yellow flowers Cara and Hector used in 5 different arrangements.
Cara's Flower Arrangements
White 3 6 9 12 15
Yellow 5 10 15 20 25
Hector's Flower Arrangements
White 4 8 12 16 20
Yellow 6 10 14 18 22
Part A
Are the numbers of white and yellow flowers in Cara's arrangements proportional?
Which equation relates the number of white flowers, w, to the number of yellow flowers, y?
A. Yes; y=35w
B. Yes; y=53w
C. No; y=3w+5w
D. No; y=5+3w
Part B
Are the numbers of white and yellow flowers in Hector's arrangements proportional?
Write an equation to relate the number of white flowers, h, to the number of yellow flowers, e.
A. Yes; e=32h
B. Yes; e=23h
C. No; e=h+2
D. No; e=h−2
Answer:
Part A - Yes; y=5/3w Part B - No; e=h+2
Step-by-step explanation:
The tables show the numbers of white and yellow flowers Cara and Hector used in 5 different arrangements.
Cara’s Flower Arrangements Proportional
White 3 6 9 12 15
Yellow 5 10 15 20 25
Hector’s Flower Arrangements Not Proportional
White 4 8 12 16 20
Yellow 6 10 14 18 22
Part A
Are the numbers of white and yellow flowers in Cara’s arrangements proportional?
Which equation relates the number of white flowers, w, to the number of yellow flowers, y?
Yes; y=3/5w
Yes; y=5/3w CORRECT ANSWER
No; y=3w+5w
No; y=5+3w
Part B
Are the numbers of white and yellow flowers in Hector’s arrangements proportional?
Which equation relates the number of white flowers, h, to the number of yellow flowers, e?
Yes; e=3/2h
Yes; e=2/3h
No; e=h+2 CORRECT ANSWER
No; e=h−2
They are correct because Part A is 1.666667 thats more than 1 so it cant be the first, and Part B, its the White flowers plus 2 to be Yellow flowers, not -.
Select the correct answer.
What is the y-intercept for this relationship.
Answer:
(0,-4)
Step-by-step explanation:
hope this helps :)
One mom has 3 children, and each child attends a different level of school. If the mom plans to pick her children up, what would be her total distance traveled if she starts at the high school, then goes to the elementary school, and finally the middle school? (Write your answer as a decimal rounded to the nearest tenths place). *
what is 9/14 x 2 1/3!!!!
According to Ms. Hill’s blintz recipe, 2 eggs should be used for every 3/4 cup of sifted flour. At this rate, how many cups of sifted flour should be used if 5 eggs are used?
F. 1 3/4
G. 2
H. 1 1/2
J 1 7/8
what is 5\7 divided by 3\4=
wright the answer and show work.
thank you.
Please help me
Evaluate the expression when M=2
m²+29
Identify the parts of the expression 4.2m + (8 , 2) - 6.
a. What are the terms of the expression?
b. Which term is the product of two factors?
c. Which term is a quotient?
d. Which term is a constant numerical value?
Answer:
Step-by-step explanation:
C because the problem has a bracket in between which clarify the statement as a quotient
pls help !! will give brainilest
Answer:
y = 2x
Step-by-step explanation:
the equation of proportional relationships are in the form y = mx, where m is the slope.
this means you need to solve the slope.
to find the slope, find 2 random points and do change in y divided by change in x.
for example, (3, 6) and (0, 0)
this would be (6 - 0)/(3 - 0) = 2
this means m = 2
so the equation is y = 2x
Someone help me with this please, I really need help, and it's due tmrw...PLEASE
Answer:
the last one
Step-by-step explanation:
3.5(w) 3.5 per week or 3.5 change per week
hope this was helpful
I think it is D. 3.5 is the amount it grows every week which is why it is multiplied by the number of weeks.
Please help immediately. I need only 10 more questions on IXL to get 100%
WILL GIVE BRAINLIEST LIKE FIVE HEARTS THE WHOLE SHEBANG
The graph shows how many bottles a machine caps in a certain number of seconds.
Part A
What is the constant of proportionality, and what does it mean in this situation?
Use the drop-down menus to show and explain your answer.
The constant of proportionality is
Choose... (Either 15, 20, or 30)
; the machine caps
(20)
bottles in
Choose... (either one second, 15 seconds, or 1 minute)
What is the range of possible sizes for side x
Answer:
one of the posible sizes of side x is around 7.0
Step-by-step explanation:
hope this helps you!
Which properties to evaluate 7/5 (1/4 divided by 7/4) (-10)
Answer:
-2
Step-by-step explanation:
1. Cancel the common factor
Help i need this it’s due today
Answer:
A or C
Step-by-step explanation:
I would appreciate this a lot if someone could help me with this.
Answer:
Question no. 2 answer is A 100percent confrom
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Half of the sum of a number n and 14 equals 5. What is the number n ?
n = 24
n = 12
n=−2
n=−4
Answer:
n = -4
Step-by-step explanation:
n+14/2 = 5
x2 x2
n + 14 = 10
-14 -14
n = -4
Algebra help........................
Answer:
437
Step-by-step explanation:
6 first-year teachers and 4 experienced teachers attended a school staff meeting meeting. What percentage of the teachers in the meeting were first-year teachers?
Monica paid sales tax of $1.50 when she bought a new bike helmet. The sales tax rate was 5%, how much did the store charge?
Answer
1.50 cents for 5% sales tax on 30 dollars
Step-by-step explanation:
Answer:
$30
Step-by-step explanation:
$30x0.05=$1.50
(PLEASE HELP) To feed 7 horses for 4 days, Mark needs 420 kg of grass. How many kilograms of grass does Mark need to feed 9 horses for 6 days?
Answer:
810kg is the answer
Step-by-step explanation:
Hope this helps:)
Elena is buying cups and plates for her party. Cups are sold in packs of 8 and plates are sold in packs of 6. She wants to have the same number of plates and cups.
Find a number of plates and cups that meet her requirement.
Answer:
24 of each; 3 packs of cups and 4 packs of plates
Step-by-step explanation:
If you want to know the minimum amount of plates and cups she can get, it would be 24.
The factors of 8 are:
8, 16, 24, 32, 40, 48, 56, 64, 72, 80
The factors of 6 are:
6, 12, 18, 24, 30, 36, 42, 48, 54, 60
The least common factor they share is 24.
She can buy 3 packs of cups and 4 packs of plates.
I shall give the right answer brainliest
Answer:
I would say that the answer is 1 × 10^1.
Step-by-step explanation:
Hope this helps. If I get it wrong I'm sorry. :S
Answer:
C
Step-by-step explanation:
C:7,000 x 10^1 = 70,000
B:7,000 x 1.1 = 7,700
D:7,000 x 10^-1 = 700
A:7,000 x 63,000 = 441,000,000
..............................algebra
What is the probability of choosing a burrito with cheese and a taco or wrap with salsa??
Step-by-step explanation:
50/50 chance of choosing one or the other because there is only two options
bobby has two poatatos he wants more so he pick 100 mor he sharees them amongst three friends EQUALY how many poatatos does each friend get?
Answer:
34
Step-by-step explanation:
If bobby already has 2 potatoes and picks 100 more, then he already has 102 potatoes. Now all you have to do is divide 102 by 3, which would be 34. If bobby is included with the friends, then all four of them would get 25.5 potatoes.
Answer: The answer is each friend gets 34 potatos
Step-by-step explanation: Each friend get 34 potatos because he first had 2 and then he picks 100 more so now he has 102. All you have to do know is divide 102 by 3 and you will get 34.
Explain solving how 4x<-16 is different from -4x<16
Thank y'all
Answer:
-4x<16 the sign flips if you divide by a negative
Step-by-step explanation:
4x<-16
x<-4
but
-4x<16
x>-4
