Answer:
Kindly check explanation
Step-by-step explanation:
Let :
Original commute time = x
Commute time due to road construction = 150% of original commute time
Hence, commute time due to road construction :
(150 / 100) * x
0.15x
Hence, the implication of the road construction in progress means that it will now take additional half of the usual time it takes them on a Monday morning.
For instance, an individual whose usu commute time is 10 minutes in the morning will now take :
1.5x = 1.5(10) = 15 minutes commute time on a Monday morning.
The radius of a circle is 8 millimeters. what's the circle's area
Answer:
2.0111 × 100 square kilometers (km²)
Answer: Answer: 2.0111 × 100 square kilometers (km²)
Step-by-step explanation:
A company offers two monthly plans. Plan A costs $ 25 plus an additional $0.10 for each minute of calls. Plan B costs $18 plus an additional $0.15 for each minute of calls.
Answer:
The indifference point is 140 minutes.
Step-by-step explanation:
Giving the following information:
Plan A costs $ 25 plus an additional $0.10 for each minute of calls.
Plan B costs $18 plus an additional $0.15 for each minute of calls.
First, we need to establish the total cost formula for each plan:
Plan A= 25 + 0.1*x
Plan B= 18 + 0.15*x
x= number of minutes
Now, to calculate the indifference point, we equal both formulas and isolate x:
25 + 0.1x = 18 + 0.15x
7 = 0.05x
140=x
The indifference point is 140 minutes.
Prove:
Plan A= 25 + 0.1*140= $39
Plan B= 18 + 0.15*140= $39
Find four consecutive negative integers whose sum is -42
Answer:
-12, -11, -10 and -9 add up to -42
Step-by-step explanation:
We can solve this by expressing all four of those integers relative to the first one:
[tex]x + (x + 1) + (x + 2) + (x + 3) = -42\\4x + 6 = -42\\4x = -48\\x = -12[/tex]
so we know that the lowest one is -12, and the other three are sequentially higher value:
-12, -11, -10 and -9
Answer: -12, -11, -10, -9
Step-by-step explanation:
they all add up to -42
HELLOOOO WHY IS NOBODY ANSWERING COULD SOMEONE ANSWER MY QUESTION I. REALLY. NEED. HELP!?!sorry if im annoying but I need help... Determine how many x-intercepts the quadratic function in the graph has and identify the intercept points.
Answer:
Its C
Step-by-step explanation:
the line crosses the x axis twice at the 2,0 point and the 6,0 point
What theorem shows that ΔACE ≅ ΔBCD?
Answer:
sas
Step-by-step explanation:
Which graph represents the compound inequality? n < –2 or n ≥ 4
Answer:
The answer is C.
Step-by-step explanation:
edge 2020
I am beging pls pls pls pls pls pls pls pls pls pls HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!
1. [Image: Vertical number line ranging from negative 5 to 5.] On this number line, zero represents sea level. Plot the following points based on the description provided. • opposite of 4
2. [Image: Vertical number line ranging from negative 5 to 5.] On this number line, zero represents sea level. Plot the following points based on the description provided. • –2
Answer:
wouldnt opposite of 4 just be -4
and wouldnt -2 just be at -2?
Step-by-step explanation:
hope this helps <3
Answer:
1. Negative 4
2. Negative 2
Step-by-step explanation:
1. Opposite of positive 4 is negative 4.
Negative 4 will be below sea level, so on the number line it will be below the zero, on -4.
2. Negative 2
Negative 2 will be below sea level, so on the number line it will be below the zero, on -2.
I hope it makes sense.
Mia spends 45 minutes reading each day. She does 2/5 of her reading at school. How many minutes does Mia spend reading at school?
Answer:
18 minutes
Step-by-step explanation:
1. 45 minutes is the TOTAL amount she reads so it can be expressed as x/45
*x=a part
2. set up a proportion
x/45 = 2/5
3. now solve by either cross multiplication or finding a scale factor. I am finding a scale factor because that is easiest.
45/5=9
so 5 * 9 = 45
so 2 * 9 = 18
the asnwer is 18. I hope this helps
Find the value of x.
Answer:
x = 78
Step-by-step explanation:
180 - 60 - 42 = 78
Pardon me if i'm wrong :/
Cuanto es 15 Multiplicado por 15
10(1 – 8x) + 7 what is the awnser
Answer:
40 + 7 = 47. 47 x 8 = 376
8 x 40 = 320 8 x 7 = 56
320 + 56 = 376
They equal the same.
Step-by-step explanation:
8x(40+7)=(8x40)+(8x7)
Answer:
1 Expand by distributing terms.
10-80x+710−80x+7
2 Collect like terms.
-80x+(10+7)−80x+(10+7)
3 Simplify.
-80x+17−80x+17
Step-by-step explanation:
SOLVE FOR x:3+2(8x-1)=5+4(4x-6)
I'm giving you brainliest if your right
Answer:
you must have wrote it wrong there is no solution.
Step-by-step explanation:
The random variable X has mean 12 and standard deviation 3. The random variable W is defined as W=7+2X . What are the mean and standard deviation of W ?
Answer:
The mean and standard devaition of W are 6 and 31 respectively.
Step-by-step explanation:
Given that:
W = 7 + 2X
Variance (W) = Variance(7 + 2X)
For a term constant term, the variance is zero.
So;
[tex]W = Var (2X)[/tex]
W = 4 × Var(X)
W = 4 × (SD (X))²
W = 4 × (3)²
W = 4 × 9
W = 36
Thus, Variance (W) = 36
The standard deviation of W = [tex]\sqrt{variance}[/tex]
W = [tex]\sqrt{36}[/tex]
W = 6
Also;
E(W) = E(7 +2 X)
E(W) = 7 + 2 × E(X)
where;
mean X = 12
E(W) = 7 + 2(12)
E(W) = 31
Thus, the mean and standard devaition of W are 6 and 31 respectively.
The mean and the standard deviation of W are 31 and 6 respectively.
The given parameters are:
[tex]\mathbf{\bar x_x = 12}[/tex]
[tex]\mathbf{\sigma_x = 3}[/tex]
The definition of W is given as:
[tex]\mathbf{W = 7 + 2X}[/tex]
This means that:
[tex]\mathbf{Var(W) = Var(7) + Var(2X)}[/tex]
So, we have:
[tex]\mathbf{Var(W) = 0 + Var(2X)}[/tex] --- the variance of a constant term is 0
[tex]\mathbf{Var(W) = Var(2X)}[/tex]
This gives
[tex]\mathbf{Var(W) = 2^2 \times Var(X)}[/tex]
We have:
[tex]\mathbf{Var(X) = \sigma^2_x}[/tex]
So, the equation becomes
[tex]\mathbf{Var(W) = 2^2 \times \sigma^2_x}[/tex]
[tex]\mathbf{Var(W) = 2^2 \times 3^2}[/tex]
[tex]\mathbf{Var(W) = 36}[/tex]
The standard deviation is then calculated as:
[tex]\mathbf{\sigma_W = \sqrt{Var(W)}}[/tex]
[tex]\mathbf{\sigma_W = \sqrt{36}}[/tex]
[tex]\mathbf{\sigma_W = 6}[/tex]
The mean is then calculated as:
[tex]\mathbf{E(W) = E(7 + 2X)}[/tex]
This gives
[tex]\mathbf{E(W) = 7 + 2E(X)}[/tex]
So, we have:
[tex]\mathbf{E(W) = 7 + 2 \times 12}[/tex]
[tex]\mathbf{E(W) = 31}[/tex]
Hence, the mean and the standard deviation of W are 31 and 6 respectively.
Read more about mean and standard deviation at:
https://brainly.com/question/10729938
Makers were placed at altitudes of 10 and 15 feet below sea level. Enter the integer that represents the altitude closer to sea level.
Answer:
The answer is 10
Step-by-step explanation:
There are 5 red markers, 2 orange markers, 3 yellow markers, and 5 green markers in a desk drawer.What is the probability of choosing a red marker?
Answer:
the probability is 5/12 or 0.416 or 41%
Step-by-step explanation:
Hope I helped!
Mae earns a weekly salary of $330 plus a commission of 6.0% on a sales gift shop.How much would she make if she sold $4300 worth of merchandise?
Answer:
Total income = $588
Step-by-step explanation:
Given:
Weekly salary = $330
Commission = 6%
Total sales = $4,300
Find:
Total income
Computation:
Total commission = $4,300 x 6%
Total commission = $258
Total income = Weekly salary + Total commission
Total income = $330 + $258
Total income = $588
y – 11 = 3(x – 2)
in standard form
Answer:
3x + y = -5
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyEquality PropertiesAlgebra I
Standard Form: Ax + By = C
Point-Slope Form: y - y₁ = m(x - x₁)
x₁ - x coordinate y₁ - y coordinate m - slopeStep-by-step explanation:
Step 1: Define
[PS] y - 11 = 3(x - 2)
Step 2: Rewrite
Find Standard Form
Distribute 3: y - 11 = 3x - 6Subtract 3x on both sides: -3x - y - 11 = -6Add 11 to both sides: -3x - y = 5Factor -1: -1(3x + y) = 5Divide -1 on both sides: 3x + y = -5Find each angle measure in the triangle.
Answer:
30, 60, 90
Step-by-step explanation:
since there are 6 x's in total, and there are a total of 180 degrees in any triangle, we do 180/6= 30
so now we know x=30, 2x=60, and 3x=90
which ordered pair is NOT a solution to the equation y=2x
Step-by-step explanation:
Point C with coordinates (3, 8) does not satisfy y = 2x as 8 is not equal to 2(3).
Hence the answer is C.
The Steelers beat the Seahawks by 10 points. The total points scored between both teams was 44. How many points did the Seahawks have?
Answer:
17
steelers had 27
Step-by-step explanation:
Please help. Solve 9= -3(x + 6)
Answer:
x=-9
Step-by-step explanation:
9=-3(x+6)
9=-3x-18
27=-3x
-9=x
what is the slope of the line represented by 5x- 12y = 24
Answer: Slope= 0.833/2.000= 0.417
Step-by-step explanation:
Answer:
x=12/5y+24/5
Step-by-step explanation:
5x-12y=24
add 12y to both sides
problem comes down to 5x=12y+24
divide everything by 5
How much sleep do high school students get on a typical school night? An interested studentdesigned a survey to find out. To make data collection easier, the student surveyed the first 30 studentsto arrive at school on a particular morning. These students reported an average of 7.2 hours of sleepon the previous night.
Answer:
The answer is below
Step-by-step explanation:
How much sleep do high school students get on a typical school night? An interested student designed a survey to find out. To make data collection easier, the student surveyed the first 100
students to arrive at school on a particular morning. These students reported an average of 7.2 hours of sleep on the previous night.
(a) What type of sample did the student obtain?
(b) Explain why this sampling method is biased. Is 7.2 hours probably higher or lower than the true average amount of sleep last night for all students at the school? Why?
Solution:
a) A voluntary response sample is a sample made up of volunteers. It samples more people who have strong opinions and sample people who have less opinion on the survey. It is biased.
Convenience sample is a type of sampling where the group of people are conveniently selected from a population. It is biased.
Since the first 30 students to arrive at school on a particular morning was used, this is convenience sampling since only the first 30 was conveniently selected.
b) This sampling method is biased because the first 30 students are those who would have woken up earlier while those who woke up late would not be sampled.
This means that the 7.2 hours is lower than the true average amount of sleep last night for all students at the school
The student council at Summerfield High School is making T-shirts to sell for a fundraiser, at a price of $11 apiece. The costs, meanwhile, are $10 per shirt, plus a setup fee of $141. Selling a certain number of shirts will allow the student council to cover their costs. What will the costs be? How many shirts must be sold?
Answer:
$1551 needed to cover the costs and 141 shirts will be sold.
Step-by-step explanation:
If a shirt costs $10 and the council is selling the shirt for $1 more ($11), after selling 141 shirts, they would have made a profit of $1*141=$141. Since there is also a setup fee of $141, the profit would actually be $0. This is when the costs are covered.
C = 10s + 141 (C is cost and s in no. of shirts sold)
s = 141
C = 141*10 + 141 = 1551
Hope this helps!
How long does it take a snail to crawl 77 inches
Answer: about 2 minutes and 47 seconds
Step-by-step explanation:
What are exercises to strengthen the upper body?
Answer:
Banded Lat Stretch. The range of motion in the shoulders is directly connected to how well the muscles of the upper back allow them to move.
Banded Pull Aparts.
Banded Pass Through.
Pull Ups
Push Ups
Step-by-step explanation:
Some exercises to strengthen the upper body include:
1. Chest Press.
2. Bench Dip.
3. Bicep Curl.
4. Pull Ups.
5. Push Ups.
6. Arm Raise
4 Find derivative by using first principal .
(ax+ b)√x
Answer:
Concept: Higher level Mathematics- Derivatives
[tex] \frac{ax + b}{ \sqrt{x} } \frac{d}{dx} [/tex]
Use quotient rule!See attached image for solution10. A tanning salon charges a one-time maintenance fee of $12 plus $4 for each tanning visit. Find a reasonable domain and range for the function for up to 6 visits.
Line m is the perpendicular bisector of segment AB. What is the value of
x?
m
3x+77
X
6x -25
A
B
X=
Answer:
x=34
Step-by-step explanation:
m is a perpendicular bisector that basically cuts ab right down the middle creating two equal parts
using this info, u now know that 3x+77 and 6x+25 are equal to each other
3x+77=6x-25
77=3x-25
102=3x
x=34
for each 24mm of coloured fabric Gordan uses 1.2cm of white fabric. Express the amount of white fabric to coloured fabricas a ratio in its simplest form.
Answer:
2:1 I think heheheheeh
Step-by-step explanation:
lol
