Answer:
0.25 and 0.09
Step-by-step explanation:
The probability that a randomly-selected person at a show has seen the band play live before is 50%=0.50
The probability that a person at a show is a "superfan" is 30%=0.30
Two people are selected at random.
The probability that both people have both seen the band perform live before
= The probability that the first person has seen the band live before and the second person also has seen the band live before.
=0.50 x 0.50
=0.25
Similarly, the probability that both are "superfans"
=The probability that the first person is a superfan and the probability that the second person is a superfan.
=0.30 x 0.30
=0.09
Hence, the probability that both people have both seen the band perform live before, and are "superfans" are 0.25 and 0.09 respectively.
How do i solve 3x/3 = 6/3
Answer: 2=x
Step-by-step explanation: Multiply both sides by three then divide both sides by three.
3x=6
x=2
Answer:
x = 2
Step-by-step explanation:
3x/3 = 6/3
cross-multiply:
9x = 18
divide both sides by nine:
x = 2
find the measure of the indicated side
Answer:
360 is a triangle
360-90=270
270÷2=135
What is the y-intercept of the linear function graphed here?
Answer:
The y intercept is -2
Step-by-step explanation:
The line passes through the Y-axis at one point, that point is -2. This therefore, is the Y-intercept.
Find the greatest common divisor of 63 and 42
Answer:
21
Step-by-step explanation:
72 is 10% of what number?
Answer: 720
Step-by-step explanation: 72 x 10 = 720
Answer:720
Step-by-step explanation: 72 times 10
What is the slope of the two points (-2,7) and (4,-8)
Answer:
-15/6
Step-by-step explanation:
If you look at the first number in each point, the x coordinate, you see the 2nd point is 6 forward from the 1st point. Now the 2nd number is the y coordinate, and you can see it goes down 15 from the 1st coordinate. So y/x is the slope.
Answer: -2 1/2
Step-by-step explanation:
Slope= Yb-Ya/Xb-Xa
In this case= (-8-7)/(4- -2)
This equals -15/6
Simply to -2 1/2
4n-32 how would i solve this and also 3w+66
will mark brainlest
Answer:
you additive inverse
Step-by-step explanation:
Answer:
Step-by-step explanation:
First you have to figure out n. Let's say it's 1, then you would multiply it by 4. That would be 4. Then subtract 32. In this case, then the answer would be - 28.
For this one, first you have to figure out w. Let's make w = 2. Then multiply is by 3 so it would be 6. Then add 66. In this case, it would be 72.
I hope this helps!
3. What is the solution to this equation?
m/4 - 3 = 6 + m/2
Answer:
m = -36
Step-by-step explanation:
Solve for m:
m/4 - 3 = m/2 + 6
Hint: | Put the fractions in m/4 - 3 over a common denominator.
Put each term in m/4 - 3 over the common denominator 4: m/4 - 3 = m/4 - 12/4:
m/4 - 12/4 = m/2 + 6
Hint: | Combine m/4 - 12/4 into a single fraction.
m/4 - 12/4 = (m - 12)/4:
(m - 12)/4 = m/2 + 6
Hint: | Put the fractions in m/2 + 6 over a common denominator.
Put each term in m/2 + 6 over the common denominator 2: m/2 + 6 = m/2 + 12/2:
(m - 12)/4 = m/2 + 12/2
Hint: | Combine m/2 + 12/2 into a single fraction.
m/2 + 12/2 = (m + 12)/2:
(m - 12)/4 = (m + 12)/2
Hint: | Make (m - 12)/4 = (m + 12)/2 simpler by multiplying both sides by a constant.
Multiply both sides by 4:
(4 (m - 12))/4 = (4 (m + 12))/2
Hint: | Cancel common terms in the numerator and denominator of (4 (m - 12))/4.
(4 (m - 12))/4 = 4/4×(m - 12) = m - 12:
m - 12 = (4 (m + 12))/2
Hint: | In (4 (m + 12))/2, divide 4 in the numerator by 2 in the denominator.
4/2 = (2×2)/2 = 2:
m - 12 = 2 (m + 12)
Hint: | Write the linear polynomial on the left hand side in standard form.
Expand out terms of the right hand side:
m - 12 = 2 m + 24
Hint: | Move terms with m to the left hand side.
Subtract 2 m from both sides:
(m - 2 m) - 12 = (2 m - 2 m) + 24
Hint: | Combine like terms in m - 2 m.
m - 2 m = -m:
-m - 12 = (2 m - 2 m) + 24
Hint: | Look for the difference of two identical terms.
2 m - 2 m = 0:
-m - 12 = 24
Hint: | Isolate terms with m to the left hand side.
Add 12 to both sides:
(12 - 12) - m = 12 + 24
Hint: | Look for the difference of two identical terms.
12 - 12 = 0:
-m = 24 + 12
Hint: | Evaluate 24 + 12.
24 + 12 = 36:
-m = 36
Hint: | Multiply both sides by a constant to simplify the equation.
Multiply both sides of -m = 36 by -1:
(-m)/(-1) = -36
Hint: | Any nonzero number divided by itself is one.
(-1)/(-1) = 1:
Answer: m = -36
3(2a+5b)+5(a-2b)
Who can tell me the answer for this one please
Answer:
11a + 5b
Step-by-step explanation:
3(2a + 5b) + 5(a-2b)
First, distribute 3 to 2a and 5b, and distribute 5 to a and -2b
6a + 15b + 5a - 10b
Combine like terms
11a + 5b
Have a good day, be safe
I hope that this helps
FInd the Area of the figure
Answer:
18,400m^2
Step-by-step explanation:
What is the slope of a line perpendicular to the line whose equation is
12x – 3y = 81. Fully reduce your answer.
Answer:
slope of perpendicular line is -1/4
Step-by-step explanation:
slope of standard equation of line that is ax+ by = c is
slope m = -a/b
given equation is
12x – 3y = 81
comparing it with ax+ by = c
a = 12
b = -3
thus
slope of given line = -12/-3 = 4
we also know product of slope of two perpendicular line is -1
let the slope of other line be m
thus,
product of given line line and perpendicular line is -1
4*m = -1
m = -1/4
Thus,
slope of perpendicular line is -1/4
At which point does the graph of the equation 2x+y=4 cross the x-axis
Answer: It crosses the x-axis at 2
Step-by-step explanation:
Hope this helped!
Answer:
easy, x=2 or (2,0)
Step-by-step explanation:
Since you are solving for x, you need to make y 0. So 2x+y(0)=4, 2x+0=4, 2x=4,x=2. So there you have it. x=2 or (2,0)
John bought 3 pants for 25 dollars each and paid with a one hundred-dollar bill. Write a numerical expression to represent this situation and then find how much money John gets back from the cashier?
Write the equation of the line that passes through the given points.
(0.2) and (5,8)
Answer:
y=1.20x+2.00
Step-by-step explanation:
Answer:
y=6/5x+2
Step-by-step explanation:
change in y/change in x =slope
8-2/5-0=6/5
y=mx+b
2=6/5(0)+b
2=b
Please help I would really appreciate it
Answer:
alternate exterior
PT 2 OF THE 1ST PROBLEM. PLS HELP IM BEGGING YOU!!!!
Answer:
n=5
Step-by-step explanation:
3/9 = 1/3
so
1/3=n/15
by cross multiplication
15×1 =n×3
15=3n
so
n=15÷3
n=5
HELP-BRAINLIEST
Y OR N FOR THE RQUATIONS IF THERE EQUAL TO 12x=5!!
Answer:
no the last one isnt equal bcz the last on is equal to 12
WILL MARK BRAINLIEST. Can someone help me wit des 2 questions?
Error Analysis: Isabel says that the equation x-2=-(x-2) has no solution because a number can never be equal to its opposite. Explain the error Isabel made. "MP.3"
Look for Relationship: You are solving an equation with a variable on each side. Does the side on which you choose to isolate the variable affect the solution? Why might you choose one side over the other? "MP.7"
Answer:
Zero is a number that can be equal to its opposite.
So, the given equation has solution for which LHS=RHS=0.
Step-by-step explanation:
The answer to the equation is 2
Algebra, help please ASAP
(-3x +4)(2x -1) Aka question A
2/7(x+4)=−6 help
x=−35
x=−25
x = 25
x =35
Answer:
x= -25
Step-by-step explanation:
What is
-3/4 + 2 3/4
Answer:
2
Step-by-step explanation:
ok so let's start
were starting off with -3/4 and were adding 2 3/4 to that and it's equal to 2 3/4 subtract 3/4
-3/4 + 2 3/4 = 2 3/4 - 3/4
2 3/4 - 3/4 = 2
-3/4 + 2 3/4 = 2
it's 2 my dude or girl i don't know
The lengths of two coasters are the ratio 3:20. The length of the short roller coaster Is 360m. What is the length of the longer roller coaster? Give your answer in kilometres
Answer:
2400KM hope this helps sorry if im
wrong
im not good with ratios and unit conversion
The parallelogram pictured below has a perimeter of 129. Find the value of y.
Answer:
y = 2½ = 2.5
Step-by-step explanation:
From the question given above, the following data were obtained:
Perimeter = 129
Slant Side (a) = 10y – 9
Base (b) = 17y + 6
y =.?
The perimeter of a parallelogram can be obtained by using the following formula:
Perimeter = 2(a + b)
Thus, with the above formula, we can obtain the value of y as shown below:
Perimeter = 129
Slant Side (a) = 10y – 9
Base (b) = 17y + 6
y =.?
Perimeter = 2(a + b)
Perimeter = 2a + 2b
129 = 2(10y – 9) + 2(17y + 6)
Clear bracket
129 = 20y – 18 + 34y + 12
Collect like terms
129 + 18 – 12 = 20y + 34y
135 = 54y
Divide both side by the coefficient of y i.e 54
y = 135/54
y = 2½ = 2.5
Thus, the value of y is 2½ or 2.5
PLS!!! HELP ME!!!! I WILL MARK U!!
Answer:
-47.4
Step-by-step explanation:
Determine whether the graph is the graph of a function. (5 points)
Answer: It is not a function
Step-by-step explanation: It does not pass the vertical line test
There are 8 soccer teams for the 110 players in the league. The league wants the same number of players on each team. Which explains whether or not it is possible?
Answer:13 on each team but there wouldn’t be the Same amount
Step-by-step explanation:
Because you would divid 110 dived by 8 equals 13.75
What is f(-5) for the function f(x) = -9x - 3?
Can you help
Answer:
42
Step-by-step explanation:
Step 1:
F ( x ) = - 9x - 3 Function
Step 2:
f ( x ) = - 9 ( - 5 ) - 3 Input x
Step 3:
f ( x ) = 45 - 3 Multiply
Answer:
f ( x ) = 42 Subtract
Hope This Helps :)
Martin uses 5/8 of a gallon of paint to cover 4/5 of a wall. What is the unit rate at which Martin paints in wall per gallon?
35/25
1 7/25
1/2
1 3/32
Answer:
Since your answer needs to be in walls per gallon I would assume you divide 4/5 by 5/8 since that would tell you how many walls he can paint in an hour.
4/5 walls÷5/8 gallons=1.28walls/gallon.
Step-by-step explanation:I hope this helps. Let me know if anything is unclear.
54:20
During a football game, a team lost 9 yards on the first play, then gained 3 yards on each of the next 3 plays. Which
integer represents the total number of yards at the end of the first four plays?
-3
09
18
Mark this and return
Save and Exit
Submit
Answer:
the answer is actually 0
Step-by-step explanation:
What is the slope.of (2,4) and (5,9)