Answer:
40%
Step-by-step explanation:
Mandy and Pete have a biased spinner numbered 1, 2, 3, 4, 5. They each want to find an estimate for the probability that the spinner will land on a 5. Mandy spins the spinner 20 times and records the number of times the spinner lands on a 5. Pete spins the spinner 200 times and records the number of times the spinner lands on a 5. Is Mandy or Pete more likely to get the better estimate? You must give a reason for your answer.
Answer:
Pete
Step-by-step explanation:
Given that:
Mandy's Estimate :
Number of spins , n = 20
Pete's Estimate:
Number of spins, n = 200
A good probability estimate is one which has narrow margin of error with a high degree of confidence. These two variables are affected by sample size.
A high sample size give a narrower margin of error and increases the confidence level probability
Based on the sample size used by each of Pete and Mandy, we can conclude that, Pete's probability estimate would be better due to its significantly higher sample size.
Can someone help me with this please and thanks :)
prime factorisation of 28 and 35
Answer:
Prime factorization of 28 and 35 is (2 × 2 × 7) and (5 × 7) respectively. As visible, 28 and 35 have only one common prime factor i.e. 7.
PLS HELP!! GIVING BRAINLIST!!
Fred is 4 times as old as Nathan and is also 27 years older than Nathan.
Let f be Fred's age and let n be Nathan's age.
Which system of equations represents this situation?
Answer:
f = 4n
f = n+27
Fred is 36 years old and Nathan is 9 years old.
n = 9
Step-by-step explanation:
Answer:
Step-by-step explanation:
Ooh I love these type of problems
Okay, here we go :
f = Fred and n = Nathan
f = 4n
f = n + 27
Above are the two equations (the words translated into algebra)
Now you can solve using substitution (any method works, but substitution is easiest for this problem)
4n = n + 27
3n = 27
n = 9
Since n = 9 substitute n into either equation
f = 4 * 9
f = 36
Fred is 36 and Nathan is 9
lol :)
Plz need help fast will mark the brainiest
Answer:
0.0081
Step-by-step explanation:
yes bye that's the answer
Answer:
0.0081
Step-by-step explanation:
mark as BRAINLIST I
A 5 KG curling rock slides along frictionless ice with a constant velocity of 10 m/s. what's the net force of the rock?
Answer:
0N
Step-by-step explanation:
Force = mass * acceleration
Given
Mass = 5kg
velocity = 19m/s
IF the velocity of the body is constant, then the acceleration will be zero.
Force = 5 * 0
Force = 0N
Hence the net force on the rock is 0N
Please select a b c or d
Answer:
a
Step-by-step explanation:
11r-12r+15
combine like terms
Answer:
-r+15
Step-by-step explanation:
2) A-5=62 PLSSSS HELLPPP
Answer:
Step-by-step explanation:
a-5=62 add 5 to both sides
a=67
Given that
R=6x+9y
Find y when x=1 and R=39
Give your answer as an improper fraction in its simplest form.
Answer:
11/3
Step-by-step explanation:
39=6+9y
39-6=9y
33=9y
33/9=y
33/9=11/3
a walking path BE in a park intersects intersects two sides of the park at their midpoints. You walk from point D to E, E to B, from B to C, and back to point D. How many yards did you walk?
Answer:
Total distance covered = 436 yards
Step-by-step explanation:
Walking path BE joins the midpoints B and E of the sides AC and AD.
By midsegment theorem,
"Line joining midpoints of two sides of a triangle is parallel and measure half of the third side"
m(BE) = [tex]\frac{1}{2}[m(CD)][/tex]
CD = 2(BE)
CD = 2(74) = 128 yd
From starting point D,
DE = 107 yd
EB = 74 yd
BC = [tex]\frac{254}{2}[/tex]
= 127 yd
CD = 128 yd
Total walking distance = DE + EB + BC + CD
= 107 + 74 + 127 + 128
= 436 yd
Total distance covered = 436 yards
Answer:
456
Step-by-step explanation:
107
74
254/2 =127
74x2=148
107+74+127+148=456
For which points is the x-coordinate less than -1?
Answer:
Point A
Step-by-step explanation:
Hope it help
Find the missing number.
330 =
22
Submit
Answer:
15
Step-by-step explanation:
SOMEONE ANSWERS THIS ANGLE PLZ !!!!
Answer: C
Step-by-step explanation:
Answer:
60 degrees
Step-by-step explanation:
a triangle degrees altogether is 180 degrees
80+40=120
so 180-120=60
Write the equation 3x+2y=8 in general form. SHOW YOUR WORK PLEASE
Answer:
3x+2y-8=0
Step-by-step explanation:
The equation 3x+2y=8 in general form is 3x + 2y - 8 = 0 respectively.
What is a numerical expression?A numerical expression is an algebraic information stated in the form of numbers and variables that are unknown. Information can is used to generate numerical expressions.
We are given that the equation 3x+2y=8.
The equation of straight line is written as y = mx + c
3x+2y=8.
2y = 8 - 3x
y = 8/2 - 3/2x
y = 4 - 3x/2
Hence, the general form is 3x + 2y - 8 = 0.
To know more about an expression follow;
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Could someone help me with this problem?
-2x<10 someone PLEASEE
Answer:
Step-by-step explanation:
-2x < 10
divide both sides by -2
x > -5
note that the direction of the inequality changes
Which of the following is the correct graph of the linear equation below?
y+2=3(x-1)
A spinner is divided into 12 equal parts. The probability of spinning an x is
How many of the parts are labeled x?
7
9
3
4
Answer:
3
Step-by-step explanation
3 x 4
Answer:
3
Step-by-step explanation:
8th grade math, please help.
Answer:
The x = 102
Step-by-step explanation:
The whole angle is 180 so you have to do 180-78 to get the other angle .
Answer:
x = 102
Step-by-step explanation:
x + 78 = 180 {linear Pair}
x = 180 - 78
x = 102
Which is the right answer
Answer:
C
Step-by-step explanation:
Pls help. Free crown to first answer.
Answer:
Ummm, thanks I guess?
Step-by-step explanation:
help i’ll mark brainliest
Answer:
12
..... ....... ......
Correct answers will get brainliest
1. expand and simplify. x(2x + 3) + 5 (x - 7)
2. Solve 5 (3y - 2) = 35
3. Write 0.88 as a fraction in its simplest form
Step-by-step explanation:
1 i dont know
2.
[tex]5(3y - 2) = 35 \\ = 15y - 10 = 35 \\ = 15y = 35 + 10 = 45 \\y = \frac{45}{15} = 3[/tex]
3.
[tex] \frac{88}{100} = \frac{22}{25} [/tex]
Answer:
Step-by-step explanation:
I hope it could help u and if isn't clear then let me know ..
Which equation, when solved for x, is equivalent to px-r=w?
Answer:
The answer is A
Step-by-step explanation:
In ΔLMN, ∠L = 55°, ∠M = 85°, find measure of ∠N.
Answer:
40 degrees
Step-by-step explanation:
the angles of a triangle add up to 180 degrees,
180 = x + 85 + 55
180 = x + 140
40 = x
Match the following expression 12(x-3)+18=6(x-3) with the number of solutions below.
A.One solution?
B.No solution ?
Or
C.All solution?
Answer:
One solution, which is x=0.
Step-by-step explanation:
12(x-3)+18=6(x-3)
12x-36+18=6x-18
12x-18=6x-18
12x-6x-18=-18
6x-18=-18
6x=-18+18
6x=0
x=0/6
x=0
*PLEASE ANSWER!!! THANK YOU!!*
John waits on tables and is paid $8.00 an hour. In a 40-hour period, he earned $210.50 in tips. What were his total earnings?
a.) $530.50
b.) $1,684
c.) $520
Answer:
a.
Step-by-step explanation:
His total earning including tips of 210.50 dollars is a.) $530.50
What is an equation?An equation is written in the form of variables and constants separated by the operation of multiplication and division,
An equation states that terms in different forms on both sides of the equality sign are equal.
Multiplication and division do not separate the terms of an equation.
Given, John waits on tables and is paid $8.00 an hour. In a 40-hour period,
∴ His earning in those 40 hours is,
= (40×8) dollars.
= 320 dollars.
He also earned 210.50 dollars in tips.
∴ His total earnings is,
= (320 + 210.50) dollars.
= 530.50 dollars.
learn more about equations here :
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Please Help Me!! I'll Give Brainliest to the First Person the Answers!!!!
Answer:
1) 30
2) 13
Step-by-step explanation:
I could be wrong but i counted all of the full squares in the shape
I don’t know if it’s true or false
Answer:
false
Step-by-step explanation:
ur teacher is dum