Answer:
35 and 25.
Step-by-step explanation:
x+y=60
x-y=10
Subtract eq1 by eq2
x-x+y-(-y) = 60-10
2y=50
y=25.
x+25=60
x=35
Hope this helps :D
#Team Rainbows
Define confidence interval and degree of confidence. Provide at least one example of a confidence interval and interpret the result.
Answer:
confidence interval:
This tells us the degree of certainty or uncertainty that is existent in a sampling method. It gives us a range of values, telling us we are fairly sure that our true value or parameter lies within the range.
Degree of confidence:
This tells us that the confidence interval has captured the true/exact population parameter.
If we have 95% degree of confidence, we are 95% sure that that the exact/true parameter are in the confidence interval
What is $6.00÷1.50? Please give me the right answers
Answer:
4
Step-by-step explanation:
Answer:
$4.00
Step-by-step explanation:
I used a calculator.
Simplify:
3(8) 0 • (3) –2
a–27
b24/9
c–216
d 1/3
Answer:
-2a-27b.2^3/3c-2161/3
HELP PLEASE I NEED HELP ASAP!!
which is equivalent to the expression 2/3(d + 6)
Paula ran 3 1/4 kilometers. Omar ran 4,200 meters. Who ran farther and by how much?
Answer:
Omar ran farther
Step-by-step explanation:
Paula ran 3250 meters and Omar ran 4200 meters. Omar ran 950 more meters than Paula
omar because 3 1/4 meters is the same as 3250 meters so then
4200>3250 so omar did more
SOMEONE, PLEASE HELP I WILL GIVE THA BRAINLIST
The managers at a clothing store determine its prices by using a markup of 8%. If the managers purchase a batch of black shirts for $19 each, what price will they charge their customers?
Answer:
$20.52
Step-by-step explanation:
19 × 8% = 1.52
1.52 + 19 = $20.52
Write an expression that is equivalent to 27e + 24.
Answer:
3 (9e + 8)
explanation:
3 x 9e = 27e
and
3 x 8 = 24
Both are multiplyed by 3 so your first number is
3 ( ?e + ?)
then the 2ed has e beside so i know thats 9
3 ( 9e + ?)
The final one is 8. 3 x 8 = 24 so there is 24 in the question so the last is 8
3 (9e + 8)
3(9e+8) is the expression that is equivalent to 27e + 24.
What is Expression?An expression is combination of variables, numbers and operators.
We need to find the equivalent fraction of 27e + 24.
For this let us find the factors of 27 and 24
Factors of 27 are 1,3,9,27
Factors of 24 are 1,2,3,4,6,8,12,24
The greatest common factor is 3.
So in the expression 27e+24 take 3 as common
3(9e+8)
Hence 3(9e+8) is the expression that is equivalent to 27e + 24.
To learn more on Expressions click:
https://brainly.com/question/14083225
#SPJ2
is the earth flat because i was watching YouTub.e and someone told me it was
Answer:
The Earth is flat when displayed on a map. The world is also a sphere when displayed on a globe. If you look at a picture of Earth from space it is a sphere. It kinda depends who you ask. My classmate have been debating that since 6th grade and we are in 9th now XD.
what are the missing angles?
Fill in the missing numbers to complete the pattern:
1.31, 1.81, _____ ,2.81, _____ ,3.81
Answer:
2.31 and 3.31
Step-by-step explanation:
since .81 is repeating, we can assume .31 does too
Can someone check if my friend did it right?
Answer:
3 mi : 5 mi or 3 mi/5 mi
Step-by-step explanation:
Answer: it’s 3/5 (fraction form)
Hope this helps :)
Step-by-step explanation:
Put the first number on top and the second on the bottom, then simplify them.
If using the method of completing the square to solve the quadratic equation
x2 – 9x + 38 0, which number would have to be added to "complete the
square"?
=
Answer:
81/4
Step-by-step explanation:
Given the equation x^2 – 9x + 38 = 0
Subtract 38 from both sides
x^2 – 9x + 38 - 38= 0 - 38
x^2 - 9x = -38
Next is to complete the square, to do this we will add the square of the half of coefficient of x to both sides as shown;
Coefficient of x is - 9
Half of -9 will be (-9/2)
Squaring the result will give (-9/2)² = 81/4
Hence the number that would have to be added to "complete the
square" is 81/4 to have;
x^2 - 9x + 81/4= -38 + 81/4
(x-9/2)² = -38 + 81/4
Hence the required value is 81/4
5) Tyra went to the movies and bought a coke for $1.25, popcorn for $4.25 and peanut butter M&Ms for $3. How much did Tyra spend in I
Need help with hw due in less than a hr!
Solve the math problems
X - 1 = 12; X = ?
X + 5 = 12; X = ?
X - 5 = 55. X = ?
X + 9 = 80: X = ?
X-2 = 40: X = ?
X + 2 = 31; X = ?
X-6 = 27: X = ?
X - 10 = 56; X = ?
X + 1 = 70; X = ?
X + 9 = 31; X = ?
Answer:
13, 7, 60, 71, 42, 29, 21, 66, 69, 22.
Step-by-step explanation:
Hope it's helpful
Any help please I gladly appreciate it!!!
Jason had a 15 foot long bed his sister had a 3 foot longer bed then Jason, How long is his sisters bed?
Answer:
18
Step-by-step explanation:
basic math :/
Identify which of these types of sampling is​ used: random,​ systematic, convenience,​ stratified, or cluster. To determine her stress level​, Charlotte divides up her day into three​ parts: morning,​ afternoon, and evening. She then measures her stress level at 2 randomly selected times during each part of the day.
Answer:
stratified sampling
Step-by-step explanation:
Note, in the stratified sampling sample method, the population is divided into smaller strata or smaller groups, and then a sample is selected randomly.
In this scenario, the population is a day (24 hours), so dividing the population (day) into three parts; morning, afternoon, and evening represents the various strata. Hence, since Charlotte, the researcher measures her stress level at 2 randomly selected times during each part of the day, she would be using the stratified sampling method.
What is the first step in evaluating the expression shown below?
(12.9 – 3.1) × 6.2 – 2 + 43
A. Multiply 3.1 and 6.2
B.Add 2 and 43.
C.Subtract 3.1 from 12.9
D.Subtract 2 from 6.2.
HELPPPP
Answer:
C.Subtract 3.1 from 12.9
Step-by-step explanation:
brainest plz
Please help! 35.1 x 8.4 = ??
Answer:
294.84
should be correct, I used a calculator.
If a line contains the point (0, -1) and has a slope of 2, then which of the following points also lies on the line?
(2,1)
(1,1)
(0,1)
Answer:
(1,1)
Step-by-step explanation:
Answer: I would say (1,1) or (0,1)
sorry if I got it wrong or couldn’t help
Find a formula for the general term or of the sequence assuming the pattern of the first few terms
continues.
{14, 19, 24, 29, 34, ...}
Assume the first term is a1.
an=?
Answer:5n+6
Step-by-step explanation :an=a1+d(n-1)
=1+(-5)(n-1) or 1+-5n+5
an=-5n+6
True or False:
If you have an odd number of negative factors your answer will be negative. *
<3
Answer:
It's true,
I'm sure about it
Plzzz help. No wrong answers plss. I'm giving everything. Brainlist, thanks, and more.
$40 game; 30% off; 5% tax
Richard is selling bundles of wood. The total weight of the wood he is selling is 6,165 pounds, and there are 90 bundles. If each bundle weighs the same, how much does one bundle of wood weigh?
Answer:
each bundle weighs 68.5 lb
Step-by-step explanation:
6165/ 90
One evening, a restaurant served a total of 3 1/3 loaves of wheat bread and 1 1/3 loaves of white bread. How many loaves were served in all?
Answer:
4 2/3
Step-by-step explanation:
Which of the sets of ordered pairs represents a function? (4 points)
A = {(-5,5), (-2, 2), (2, -2), (5, -5)}
B = {(4,2), (3,-2), (9,4), (11, -3)}
Only A
Only B
Ο Ο Ο
Both A and B
Neither A nor B
Answer:
A if i'm not mistaking
Step-by-step explanation:
−6x + 6y = 6 −6x + 3y = −12
Answer:
x = 0
y = 2
Step-by-step explanation:
−6x + 6y = 6 −6x + 3y = −12
-6x+6x+6y-3y = 6
3y = 6
y = 2
checking:
6-6x+3.2 = -12
6-6x+6 = -12
12-6x = 12
x = 0
checking 2:
since x = 0 we ignore it and its multipliers from the equation:
6y=6+3y = 12
6.2 = 12 (check)
6+3.2 = 12
6+6 = 12 (check)