Answer:
In mathematics, we call this making predictions using random sampling. We basically take data from a random sample of a population and make predictions about the whole population based on that data.
Step-by-step explanation:
–0.4(3x – 2) + StartFraction 2 x plus 4 Over 3 EndFraction for x = 4
Answer:
0
Step-by-step explanation:
Given
- 0.4(3x - 2) + [tex]\frac{2x+4}{3}[/tex] ← substitute x = 4 into the expression
= - 0.4(3(4) - 2) + [tex]\frac{2(4)+4}{3}[/tex]
= - 0.4(12 - 2) + [tex]\frac{8+4}{3}[/tex]
= - 0.4(10) + [tex]\frac{12}{3}[/tex]
= - 4 + 4 = 0
Kiran is spending $12 on games and rides at another carnival, where a game costs $0.25 and a ride costs $1.
Answer:
10.75 is the answer I think
POSSIBLE POINTS: 10
The total distance in inches a toy train moves varies directly with the time in seconds. In 16 seconds, the toy train moves a total distance of 272 inches.
What is the time in seconds the toy train moves when the total distance is 527 inches?
Answer:
The time in seconds that the toy train moves is 32.9375 or rounded 33 seconds.
Step-by-step explanation:
hope it helps :) brainliest pls
this is 7th grade math, pls help
Answer: C
Step-by-step explanation:
To find b₂, we need to use our algebraic properties to isolate b₂.
[tex]A=\frac{1}{2}h(b_1+b_2)[/tex] [multiply both sides by 2]
[tex]2A=h(b_1+b_2)[/tex] [divide both sides by h]
[tex]\frac{2A}{h} =b_1+b_2[/tex] [subtract both sides by b₁]
[tex]b_2=\frac{2A}{h}-b_1[/tex]
Now, we know that C is the correct answer.
Answer:C
Step-by-step explanation:
Milk creamery charges $2 for a cup of ice cream and $0.75 for each topping (t) . Justin wants a cup of ice cream with for toppings
Answer:
$5
Step-by-step explanation:
$2 for cup
$0.75 per topping
4 toppings $0.75 a piece
4 × .75 = 3.00
$2 + $3 = $5
The expression which represents the given situation is 2+0.75x and the ice cream cost Justin is $5.
Given that, Milk Creamery charges $2 for a cup of ice cream and $0.75 for each topping (t).
We need to find which expression best represents the situation, and how much will the ice cream cost Justin.
What is an expression?Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between. The mathematical operators can be addition, subtraction, multiplication, or division.
Now, the expression for the given situation is 2+0.75x
Justin wants a cup of ice cream with four toppings, so the cost of ice cream=2+0.75(4)=$5
Therefore, the expression which represents the given situation is 2+0.75x and the ice cream cost Justin is $5.
To learn more about an expression visit:
https://brainly.com/question/28170201.
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Your question is incomplete, probably the complete question/missing part is:
Milk Creamery charges $2 for a cup of ice cream and $0.75 for each topping (t). Justin wants a cup of ice cream with four toppings. Which expression best represents the situation, and how much will the ice cream cost Justin?
If m CGD=4x+2, m DGE=3x-5, m EGF=2x+10, find the following measures.
ALOT OF POINTSALOT OF POINTS ALOT OF POINTS ALOT OF POINTS ALOT OF POINTS The graph shows the motion of a train on a railroad. Which statement describing the motion of the train is best supported by the graph? Math item stem image CLEAR CHECK The train is traveling on a level surface. The train is moving at a constant positive speed. The train is not moving. The train track is straight.
Answer:
Step-by-step explanation:
2,3
Answer:
The train is moving at a constant positive speed.
Hope this helped :)
A concert hall has seven sections. Each section has 23 rules. Please roll has 14 seats. If the theater sells out pretty particular performance, how many people attended? If the average ticket sold for $20, how much was collected at the box office? Need to write an equation. Thanks
Answer:
The number of people that attended the performance = 2,254
Amount collected at box office = $45,080
Step-by-step explanation:
For the theater to sell out a performance, it means it was filled to the brim( completely filled)
We have 7 sections, with 23 rows each
The total number of rows will be 23 * 7 = 161 rows
Since each row has 14 seats, the total number of seats will be 161 * 14 = 2,254 seats
Secondly we want to know how much was collected at the box office given the average ticket price
The amount collected at the box office = Number of seats * average ticket price = 2,254 * 20 = $45,080
What do u get when you Simplify -4x - x.
Answer:
-4x? whats the value to x?
Step-by-step explanation:
In the Caribbean Sea, there are 15 yachts, 32 sailboats, and 8 trawlers. What fraction of the boats are sailboats?
Answer:
32/55
Step-by-step explanation:
You have to get the total number of boats first :
15 + 32 + 8 = 55
out of the 55 boats, 32 are sailboats
the fraction would be :
32/55
Hope this helps :)
R is in between P and S. PR = 15.5 mm, RS = 13.3 mm. Find PS
Answer:
28.8mm
hope this helped you
please mark as the brainliest (ㆁωㆁ)
Is 0.35217534 a rational
Answer: YES
Step-by-step explanation:
THREE WAYS TO DETERMINE:
If the number given is in integer, it is rational.
If the number given is fraction, it is rational.
If the number given is decimal, as long as it is terminating or repetitive decimal, it is rational. (Because then you can write it as a fraction which leads to the second point)
--------------------------------------------------------------
0.35217534
It is a terminating decimal, which fits the third point.
So it is rational.Hope this helps!! :)
is 3.21 rational or irrational
Answer: Rational
Step-by-step explanation:
3.21 is rational because it is not an infinite decimal number or a square root that is not whole.
7. Which number is between it and V14 ?*
A. 1.5
B. 2.5
C. 3.5
D. 4.5
Answer:
i would have to go with b or c i would choose one of those
The height of Dougal is 1.84 metres. The height of Seb is 1.7 metres. Write the height of Dougal as a fraction of the height of Seb. Give your answer in its simplest form. Write your fraction in the form a / b eg * 19/16 would be 19/16
Answer:
No se bro suerte con eso V:
Step-by-step explanation:
What is the LCM of 81000000
Answer:
you can't there's too many 0's for it to work
Step-by-step explanation:
Point M lies between Points A and B. If AB=12 and AM=7, what is the length of MB?
Answer:
AB= 12
since M is in the middle
AM + MB = 12
or 7 + MB = 12
MB= 12-7=5
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
AM + MB = AB
So, AB - AM = MB
Substituting, 12 - 7 = 5
What would a solution to h(t) = 0 mean in this situation?
Step-by-step explanation:
is this probability question
is 6>x a open or closed dot
Answer:
It will be an open dot.
Step-by-step explanation:
By math textbook states that if a symbol is greater than or less than, it has an open dot.
If it has greater than or less than symbol with a line under it, that means it is a closed dot.
Hope this helps!
Directed line segment porque is shown on the coordinate plane. What are the coordinates of the point 1/3 of the way from point P(4,4) to point Q(-2,1)?
Answer: (2,3).
Step-by-step explanation:
We need to find the coordinates of the point 1/3 of the way from point P(4,4) to point Q(-2,1).
Let the point be A.
[tex]PA:PQ=1:3[/tex]
[tex]PA:AQ=PA:(PQ-PA)=1:(3-1)=1:2[/tex]
It means the point A divide the segment PQ in 1:2.
Section formula: If a point divide a segment is m:n.
[tex]\left(\dfrac{mx_2+nx_1}{m+n},\dfrac{my_2+ny_1}{m+n}\right)[/tex]
[tex]A=\left(\dfrac{1(-2)+2(4)}{1+2},\dfrac{1(1)+2(4)}{1+2}\right)[/tex]
[tex]A=\left(\dfrac{-2+8}{3},\dfrac{1+8}{3}\right)[/tex]
[tex]A=\left(\dfrac{6}{3},\dfrac{9}{3}\right)[/tex]
[tex]A=\left(2,3\right)[/tex]
Therefore, the required coordinates are (2,3).
HELP I WILL GIVE BRAINLIEST I NEED ANSWER ASAP!!!
Mr. Green wants to know how far he can run. He knows he can run 103,000 mm. How many miles can he run? Show all work if you want to receive credit.
I know the answer is 0.064 miles but I need the work!! help please
Answer:
1 Mile = 1609000 mm.
1.03 × 10^5 × 6.21371192237337 = 0.064 mile
103000 /1609344= 103000 mm.
Step-by-step explanation:
The beginning process is just to find the amount that mm = miles. After that you will move the decimal to then get 0.064 of a mile.
103,000 mm is 0.064 miles
So he can run 0.064 miles.
Given,
He can run = 103,000 mm
We need to find how many miles he can run.
How many mm in a mile?1 mile = 1609344 mm
Find how many miles is 103,000 mm.
We have,
1 mile = 1609344 mm
Multiplying both sides by 103,000
103,000 x 1 mile = 103,000 mm x 1609344
Divide both sides by 1609344
( 103,000 x 1 mile ) / 1609344 = (103,000 mm x 1609344) / 1609344
0.064 miles = 103,000 mm
This means 103,000 mm is 0.064 miles.
Thus 103,000 mm is 0.064 miles
Learn more about the conversion of meters and millimeters here:
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What is 4(5n+7)-3n=3(4n-9)
Simplified?
Please help this us due tomorrow and I’m stuck
Solve the compound inequality. −5x≤−10 or 7x−21≥14
-5x ≤ -10
Divide both sides by -5
x ≥ 2
7x - 21 ≥ 14
Add 21 to both sides
7x ≥ 35
Divide both sides by 7
x ≥ 5
when half of a number is decreased by 24, the result is 95.
the answer is 50%
there u go
solve [tex]3x\geq -9[/tex]
Answer:
You have to divide it :
[tex]3x \geqslant - 9[/tex]
[tex]x \geqslant - 9 \div 3[/tex]
[tex]x \geqslant - 3[/tex]
If ST has endpoints S(-6, -1) and T(0, 1), then the midpoint M of ST lies on the x-axis.
SOMEONE PLEASE HELP!!!
Answer:
formula: M (x1 +x2/2 , y1+y2/2 )
M(-6+0/2 , -1+1/2)
M(-6/2 , 0/2)
M=(-3,0)
Step-by-step explanation:
The midpoint of the line ST lies on the x-axis with the coordinate, (-3, 0)
What is a midpoint?A midpoint is the center of two points, It lies at the same distance from the two endpoints.
The coordinates of the endpoints of a line ST are as follows:
The coordinate of S is (-6, -1)
The coordinate of T is ( 0, 1)
The midpoint of the line ST is M
The coordinates of M is given as,
M = ( x₁ + x₂) /2 , ( y₁ + y₂) /2
x₁ = -6
x₂ = 0
y₁ = -1
y₂ = 1
The coordinates of M is,
( -6 +0) / 2 , ( -1 +1) /2
-3, 0
The coordinates of the midpoint of the line are ( -3, 0).
To know more about Midpoint
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Ronald is trying to reconstruct his spending pattern from May. He knows that he had $315 in his account on May 1, but after that, his receipts and balance statements are all scrambled. Here are Ronald’s records: Date Transaction Type Amount ($) 5/25 Purchase 66 5/18 Purchase 90 5/30 Purchase 188 5/24 Deposit 151 5/22 Purchase 152 5/8 Deposit 104 5/3 Purchase 175 5/6 Purchase 82 Assuming that this is a complete, if scrambled, record of Ronald’s May spending and that any overdraft fees incurred do not affect the running total, how many times did Ronald overdraw his account in May? a. Ronald never overdrew his account. b. Ronald only overdrew his account once. c. Ronald overdrew his account twice. d. Ronald overdrew his account more than twice. Please select the best answer from the choices provided A B C D
Answer: C. Ronaldo overviewed his account twice.
Step-by-step explanation:
Just took a test on edge.
1) Freddy was unhappy that his bank account was in _____, and he knew he had to get a job in order to pay his rent. *
Answer:
the answer is debt
Step-by-step explanation:
50-(16 divide 2^2)+3
Answer: 49
Step-by-step explanation:
50−16/4+3
=50−4+3
=46+3
=49
Those are the math questions I need the answers of
Answer:
1)
[tex]12\sqrt{18}-3\sqrt{50}+\sqrt{32}[/tex]
[tex]12\sqrt{9}\sqrt{2}-3\sqrt{25} \sqrt{2} +\sqrt{16} \sqrt{2}[/tex]
[tex]12\times3\sqrt{2} -3\times5\sqrt{2}+4\sqrt{2}[/tex]
[tex]36\sqrt{2}-15\sqrt{2}+4\sqrt{2}[/tex]
[tex]25\sqrt{2}[/tex]
2)
[tex]\frac{1}{5+2\sqrt{6}}[/tex]
Multiply [tex]5-2\sqrt{6}[/tex]:
[tex]\frac{1\times \left(5-2\sqrt{6}\right)}{\left(5+2\sqrt{6}\right)\left(5-2\sqrt{6}\right)}[/tex]
Apply Difference of Squares formula: [tex](a+b)(a-b)=a^2-b^2[/tex]
[tex]\frac{5-2\sqrt{6}}{5^2-\left(2\sqrt{6}\right)^2}[/tex]
[tex]\frac{5-2\sqrt{6}}{25-2^2\left(\sqrt{6}\right)^2}[/tex]
[tex]\frac{5-2\sqrt{6}}{25-4\times6}[/tex]
[tex]\frac{5-2\sqrt{6}}{1}[/tex]
[tex]{5-2\sqrt{6}}[/tex]
a = 5, b = -2