I think it’s the same one, lol I don’t know
Use substitution. What is the solution of the system of equations?
Answer:
Step-by-step explanation:
2(1/2x + 2) = x + 4
x + 4 = x + 4
infinite many solutions
Question 2(Multiple Choice Worth 2 points)
(Experimental Probability MC)
In a repeated experiment, Kim rolled a fair die twice. The theoretical probability of both rolls equaling a sum greater than 10 is 3 over 36. Predict how many times the rolls will result in a sum greater than 10 if the experiment is repeated 108 times.
3
9
10
18
9 the rolls will result in a sum greater than 10 if the experiment is repeated 108 times.
What is Probability?Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.
The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.
The degree to which something is likely to happen is basically what probability means.
The theoretical probability of both rolls equaling a sum greater than 10 is 3 over 36.
As, Expected number of outcomes = theoretical probability * number of trials
Expected number of outcomes = 3/36 x 108
= 9
Thus, the required value is 9.
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Find N
2/9 = 14/n
12/18 = n/36
30/38 = 15/n
60/66 = n/22
please help.
♡PLEASE HELP ASAP! and explain how you did it... Tysm!♡
stuck on math homework help
Answer:
Step-by-step explanation:
its 1000
Determine the measurement of FD.
A: FD = 3.16
B: FD = 3.04
C: FD = 1.39
D: FD = 1.1
Answer:
3.04
Step-by-step explanation:
4.4/11 = 0.4
0.4•7.6 = 3.04
John drank 2 pints of milk. How many cups of milk did he drink? A. 3 cups B. 4 cups C. 5 cups D. 6 cups
Answer:B-4
Step-by-step explanation:
because there are 2 cups in a pint it would be 2x2 which is 4
select the comparison
Answer:
option- A
Step-by-step explanation:
the typical value is greater in set B . The spread is greater is set A.
I would like a explaination to help me lol
The table will give you an ordered pair for each row.
For the first row, it is (4,-2).
Find a point on the graph that corresponds to the ordered pair. Thereafter, find a point that corresponds to the table.
Heelp faaast
Find the N
2/9 = 14/n
what is it???
Answer:
n=63
Step-by-step explanation:
have great day :D
Simplify 7x times (2x^4)^3
Middle school
Show work on how you got your _ Answer
Please help its for a test due tomorrow
Answer:
8x to the power three to the power 12
Step-by-step explanation:
Miss Rivas and Mr. Seipel have homerooms with the same perimeter. Mr. Seipel's homeroom has a width that is 1 1/10 times the width of Miss Rivas' homeroom
Answer: Unknown
Step-by-step explanation:
Well, we know that Mr. Seipel's homeroom is 11/10 times the width of Miss Rivas' homeroom. Because 11/10 = 1.1, we can multiply Miss Rivas' homeroom width by 1.1 to get Mr. Seipel's homeroom width. We can also divide Mr. Seipel's homeroom width by 1.1 to get Miss Rivas' homeroom width. But, you didn't provide the question in your post.
Combine Like Terms:
3x - 5 + 2x + 7
Group of answer choices
1x - 2
5x + 2
5x - 2
5x + 12
Thanks!
5x +2
hope it helps
.....
find n
12/18 = n/36
please what i it???
Answer:
n = 24
Step-by-step explanation:
first put the equation into fraction form and cross multiply:
12/18 = n/36
12(36) = n(18)
432 = 18n
now isolate the variable:
432/18 = 18n/18
24 = n
Monster Energy Drink costs $25 for a 12 pack, but You has a coupon for 15% off the entire purchase.
EpicThunder Costs $5.30 for a 2 pack.
Which drink costs less per can?
Answer:
12
Step-by-step explanation:
Valeria made a scale drawing of an apartment. The dining room is 14 centimeters wide in the drawing. The actual dining room is 7 meters wide. What scale did Valeria use for the drawing?
Answer:
The scale is 1/2 a meter per centimeter.
Step-by-step explanation:
7 is half of 14.
Evaluate the expression.
0.2t when t = 1.6
Group of answer choices
0.32
3.2
0.032
32
Thanks!
Answer: .32
Step-by-step explanation:
1.6
X0.2
——-
.32
So the trick here is to look at the decimals. We can solve this problem like it’s 16×2, as long as we add the decimal points back in. so in this case the decimal points are in the tenths spot so we move them twice in the 32. I hope the picture helps too. Hope this helped!
Triangles ABC and DEC are similar. Side DE is 1.8 feet, side EC is 4 feet, and side BE is 0.8 foot.
Part A: Describe how to draw triangles ABC and DEC separately. Be sure to give the lengths of sides BC, DE, and EC in the description.
Part B: Find side AB. Show each step of your work.
The lengths of sides BC, DE, and EC in triangle DEC are given as [tex]4[/tex] feet, [tex]1.8 feet,[/tex] and 0.8 foot, respectively. The length of side [tex]AB[/tex] is approximately [tex]3.36[/tex] feet.
What is the line segment?Part A:
To draw triangles [tex]ABC[/tex] and [tex]DEC[/tex] separately, follow the steps below:
Draw a straight line segment DE with length [tex]1.8[/tex] feet.
From point D, draw a line segment DC perpendicular to DE with length 4 feet.
Connect point E and point C with a straight line segment EC.
From point B, draw a line segment BE perpendicular to BC with length 0.8 foot.
Draw a straight line segment BC that intersects line segment DC at point A.
Connect point A and point B with a straight line segment AB.
The lengths of sides BC, DE, and EC in triangle DEC are given as [tex]4[/tex] feet, [tex]1.8 feet,[/tex] and 0.8 foot, respectively.
Part B:
Since triangles [tex]ABC[/tex] and [tex]DEC[/tex] are similar, their corresponding sides are proportional. Let x be the length of side AB. Then we have:
[tex]AB/DE = BC/EC[/tex]
Substituting the given values, we get:
[tex]x/1.8 = BC/0.8[/tex]
Solving for BC, we get:
[tex]BC = 0.8x/1.8[/tex]
Since BC and EC are the two legs of a right triangle DEC, we can use the Pythagorean theorem to find BC:
[tex]BC^2 + EC^2 = DE^2[/tex]
Substituting the given values, we get:
[tex](0.8x/1.8)^2 + 4^2 = 1.8^2[/tex]
Solving for x, we get:
[tex]x = 1.8 * (sqrt(1.8^2 - 4^2)) / 0.8[/tex]
[tex]x \approx 3.36 feet[/tex]
Therefore, the length of side [tex]AB[/tex] is approximately [tex]3.36[/tex] feet.
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ANSWER ASAP PLEASE What is the solution for the system of linear equations shown in the graph? a coordinate grid with one line that passes through the points 0 comma 1 and 1 comma 2 and another line that passes through the points 0 comma 0 and 1 comma negative 3
Step-by-step explanation:
The solution of for the system of linear equations shown in the graph is x = -1/2 and y = 3/2.
Given points of two lines:-
Line 1 : (0,0) , (1,-3)
Line 2 : (0,2) , (-1,1)
Let the Equation of Line 1 : y = mx + c
m = (-3-0)/(1-0) = -3/1 = -3
Putting (0,0) in y = mx + c, we get
0 = -3*0 + c
0 = 0 + c
c = 0
Hence,
Equation of Line 1 : y = -3x or y + 3x = 0 ...(1)
Similarly, we can find,
Equation of Line 2 : y = x + 2 or y - x = 2 ...(2)
(1) - (2),
4x = -2
x = -2/4 = -1/2
Putting the value of x in (2), we get,
y - (-1/2) = 2
y + 1/2 = 2
y = 2-(1/2)
y = 3/2
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14. Two hundred tickets were sold for a concert. Forty percent of the tickets were pre-sold. The remaining tickets were sold at the door. Sasha finds the number of tickets sold at the door in the following way:
First, she subtracts 40% from 100% to get 60%.
Then she finds the number that is 60% of 200.
Is Sasha correct? Use words and numbers to explain your answer.
Answer:80
Step-by-step explanation:
what you do is since there’s a whole and a present multiply them and then divide by 100 and there’s your answer.So Sasha was wrong.(btw I’m in 6th grade and this is exactly what we are working on so I know lol)
Solve 2(x + 7) = 28
A. x= 10.5
B. x= 14
C. x=21
D. x=7
Look at the picture pls
Answer:
4%
Step-by-step explanation:
I believe four percent she rolled 100 times in total but out of 100 times she only got an even number 4 times
Need answers asap please when answer put number beside it tysm , will give brainly if all answers are right.
Answer:
Step-by-step explanation:2,4
Answer:
Step-by-step explanation:
#18 complementary
3x +45 = 90
3x + 45-45 = 90 -45
3x = 45
Divide both sides by 3
3x/3 = 45/3
x = 15
#20 supplementary
2x + 3x + 25 = 180
5x + 25 = 180
5x + 25 - 25 = 180 -25
5x = 155
Divide both sides by 5
5x/5 = 155/5
x = 31
#15 - vertical
4x - 25 = 75
4x - 25 + 25 = 75 + 25
4x = 100
Divide both sides by 4
4x/4 = 100/4
x = 25
#16 - complementary
4x + 2x = 90
6x = 90
divide by 6 each side
x = 15
#19 complementary
x -20 + x = 90
2x -20 = 90
2x -20 + 20 =90 +20
2x = 110
Divide both sides by 2
2x / 2 = 110/2
x = 55
help plss<33.
how is a representative democracy different from a direct democracy?
in a direct democracy, citizens are able to vote.
in a direct democracy, citizens elect officials to make the laws.
in a representative democracy, citizens make the laws themselves.
in a representative democracy, citizens elect officials to make the laws.
Answer:
C
Step-by-step explanation:
The answer is C because in a representative democracy, citizens do make the laws themselves..
hope the helps. have a nice day!
PLS HELP ASAP
The lengths and widths of two books are proportional. If book 1 is 8.5 inches long and 6.1 inches wide and Book 2 is about 4.6 inches wide, what is the estimated length of Book 2 rounded to the nearest tenth? Show your work
A 6.5
B 1.3
C 6.54
D 1.33
Answer:
d
Step-by-step explanation:
because because because because because
Hans spent a total of $30 at the grocery store. Of this amount, he spent $21 on fruit. What percentage of the total did he spend on fruit?
Answer: 70%
Step-by-step explanation:
The total answers count 30 - it's 100%, so to get a 1% value, divide 30 by 100 to get 0.30. Next, calculate the percentage of 21: divide 21 by 1% value (0.30), and you get 70.00%
PROPORTION :))
In a certain neighbourhood the ratio of cats to dogs to squirrels to skunks is 5:4:7:1. If
there are 119 of these animals in all, how many are dogs?
Answer: There are 28 dogs
Step-by-step explanation:
5+4+7+1 = 17
119/17 = 7
7x4(the dogs) = 28
ANOTHER PROPORTIONS QUESTION!!! (HIGHER IN POINTS DIS TIME ^^)
Kimberley's car can go 290 km on 21 L of gas. How far will her car go on 31 L of gas? (give the answer in fraction format and show your explanation!)
Answer: o
Step-by-step explanation:
PLS HELP 50 POINTS What is the discount and sale price of an $84 item that has been discounted at 8.33%?
Answer:
original price = $84
discount percent = 8.33%
discount = 8.33% of $84 = 8.33 × 84 / 100 = $7
Sale price = $84 - $7 = $77
A fair, 6-sided die is rolled 60 times. Predict how many times it will land on a number greater than 2.
60
40
20
two thirds
Answer: 40!
Please give brainliest.
Step-by-step explanation:
Let us first diagnose the problem.
There is a die with 6 sides.
Sides: 1,2,3,4,5,6
4 of the 6 sides are greater than 2.
Let us use the theoretical probability formula of
Number of favorable outcomes / Number of possible outcomes.
Favorable outcomes being 4 because there is 4 numbers greater than 2, which is favorable to the outcome we want
Possible outcomes being 6 because the die has 6 sides.
Now lets put this in a fraction:
[tex]\frac{4}{6}[/tex]
Lets multiply our fraction by 60, as we are rolling the die 60 times.
[tex]\frac{4}{6} (60) = 40[/tex]
We got 40! Which basically means 40%.