Answer:
Price per yard is $6,5
Step-by-step explanation:
22.75/3.5 = 6,5
Chad washes windows after school to make some extra money. He charges $5.50 to wash each window. If the customer provides the supplies, Chad deducts $3.25 from the total cost. One customer paid a total of $27.50 and did not provide supplies. Which equation could be used to find the number of windows, w, that Chad washed for this customer?
*5.5w - 3.25 = 35.25
The 5.5w part shows that its $5.50 times each window. The -3.25 is because he deducted 3.25 from the total. And then you have the price that he got on the other side.
Here's the work to find the windows in case you want it:
5.5w-3.25=35.25
5.5w=38.50
w=7
He washed 7 windows
Answer:
5.5 w - 3.25 = 27.5
Step-by-step explanation:
What is the answer 55 : 60 = ___ : 12
Answer:
11:12
Step-by-step explanation:
I hoped that i helped u out :)
Answer:
11 is my best guess
Step-by-step explanation:
Use square roots to solve the equation x^2 = −25 over the complex numbers. Enter your answers in numerical order.
Answer:
Step-by-step explanation:
x^2= -25
x=5i and -5i
Answer:
The answer is 5
Step-by-step explanation:
x^2= -25
x=√-25
x=5
hurry please!!
You drive a delivery truck. This week, your daily mileage totals were 215, 183, 258, 192, and 75 miles. The standard deviation for the data is 60.6, and the range is 183.
Which measure of center is most appropriate, and what is the value of the measure of center?
mean; 140
mean; 145
median; 192
mean; 258
median; 258
Answer:
Median is 192! because medians are the numbers right in the middle after the numbers are out in numerical order
please help and hurry
Answer:
3,2
Step-by-step explanation:
Mind maps are a great way of
Use the information on the right to determine which students will have positive z-scores. Aaliyah, who completed the exam in 55 minutes Benjamin, who completed the exam in 86 minutes Cynthia, who completed the exam in 72 minutes
Answer:
B and C, Benjamin and Cynthia.
Step-by-step explanation:
Next part (Cynthia's score) is 0.2
Answer:
Here's all the answers to the assignment! This is here to help future people in order to get a good grade on e2020! :)
Use the information on the right to determine which students will have positive z-scores.
Answer(s):
B) Benjamin, who completed the exam in 86 minutes
C) Cynthia, who completed the exam in 72 minutes
Cynthia’s z-score is
Answer) 0.2
A newborn who weighs 2,500 g or less has a low birth weight. Use the information on the right to find the z-score of a 2,500 g baby.
Answer) -2
What is the z-score of a newborn who weighs 4,000 g?
Answer) 1
What weight would give a newborn a z-score of −0.75?
Answer) 3125
In the United States, birth weights of newborn babies are approximately normally distributed with a mean of ? = 3,500 g and a standard deviation of ? = 500 g.
According to the empirical rule, 68% of all newborn babies in the United States weigh between
Answer(s) 3000 g and 4000 g
95% of all newborn babies in the United States weigh between
Answer(s) 2500 g and 4500 g.
99.7% of all newborn babies in the United States weigh between
Answer(s) 2000 g and 5000 g.
According to the empirical rule, 68% of 7-year-old children are between
Answer(s) 47 inches and 51 inches tall.
95% of 7-year-old children are between
Answer(s) 45 inches and 53 inches tall.
99.7% of 7-year-old children are between
Answer(s) 43 inches and 55 inches tall.
Use the information given in the table on the right to complete each of the following statements.
Brenda is 50 inches tall. Her z-score is
Answer) 0.5
Zach has a z-score of –1.5. His height is
Answer) 46 inches.
Approximately 16 % of 7-year-old children are taller than 51 inches.
In the United States, birth weights of newborn babies are approximately normally distributed with a mean of μ = 3,500 g and a standard deviation of σ = 500 g.
What percent of babies born in the United States are classified as having a low birth weight (< 2,500 g)? Explain how you got your answer.
(Answers)
The z-score for 2,500 g is –2.
According to the empirical rule, 95% of babies have a birth weight of between 2,500 g and 4,500 g.
5% of babies have a birth weight of less than 2,500 g or greater than 4,500 g.
Normal distributions are symmetric, so 2.5% of babies weigh less than 2,500g.
Mr. G drove a total of 252 miles and used 12 gallons of gas last weekend. What is the unit rate of miles to 1 gallon?
Answer:
21 miles per gallon
Step-by-step explanation:
252 miles to 12 gallons
= 252/12
= 21
The unit rate of miles to 1 gallon is 21 miles to 1 gallon.
A point is rotated 270° about the origin. The image of the point is (-11,7). What are the coordinates of the preimage?
Choose the correct answer below.
O A. (11)
B. (7. - 11)
O C. (11,7)
OD. (-7, -11)
PLEASE HURRY
Answer:
The correct answer is C(11,7)
Step-by-step explanation:
I had this question and got it right lol
The required coordinates of the preimage are (-7, 11) when the point is rotated 270° about the origin.
What is a transformation?A point is transformed when it is moved from where it was originally to a new location. Translation, rotation, reflection, and dilation are examples of different transformations.
We have been given that a point is rotated 270° about the origin. The image of the point is (-11,7).
The coordinates of the preimage would be :
x = x cos θ + y sin θ
y = x sin θ + y cos θ
Here x = -11 ,y = 7 and θ = 270°
Substitute the values in the above equations,
x = (-11) cos 270° + 7 sin 270° = -7
y = (-11) sin 270° + 7 cos 270° = 11
Therefore, the required coordinates of the preimage are (-7, 11).
To learn more about the transformations click here :
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-66/22 to a decimal PLEASE I NEED THE ANSWER!!! I'LL MARK BRAINLIEST
Answer: -3
Step-by-step explanation:
Answer:
-3
Step-by-step explanation:
To turn a fraction into a decimal, all we need to do is divide the numerator by the denominator. But first, we can simplify! -66/22 simplifies to -3/1 when you divide by 22 on the top and bottom. Now, it's a lot easier to divide. -3/1=-3. -3 is technically already a decimal...you just can't see the decimal point. The decimal point is actually behind -3, so it looks like this: -3.0
Have a great day! Hope this helps!!! ^^
In isosceles ABC, AB=AC. if B=55,calculate A
Answer:
Two base angles of an isosceles triangles are equal.
55 + 55 + a = 180
110 + a = 180
a = 180-110
a = 70
What is the first step in simplifying the expression 11x - 2 - 3(1 -7x)^2
Answer:
multiply 3 by the one and -7x
can you put this as the brain list because i need one more to level up
Step-by-step explanation:
Answer: Apply the exponent
Step-by-step explanation: Remember the acronym PEMDAS. Since you can't simplify the parentheses, move on to applying the exponent 2 to (1 - 7x)
I NEED THE ANSWER NOW
Which equation is graphed below? On a coordinate plane, a hyperbola has a curve in quadrant 2 and a curve in quadrant 4. The curve in quadrant 2 enters the grid line at (negative 3, 1) and (negative 0.5, 6). The curve in quadrant 4 enters the plane at (0. 5, negative 6) and (3, negative 1). y = –StartFraction 3 Over x EndFraction y = StartFraction 2 over x EndFraction y = –2square root of x y = 3square root of x
Answer:
I think the answer is D.
Step-by-step explanation:
thats what i think at least
Answer:
D. y = 3square root of x
Step-by-step explanation:
Which of these angles listed is vertical to Which of these angles listed is a linear pair to
What equation in slope-intercept form represents the line that passes through the points (1, -6), (-3, 10).
Answer:
y = −4x − 2
Step-by-step explanation:
Hope This Helps!
Plz Mark Brainliest!
Have a Happy Thanksgiving!
HELP!! ASAP!! Will mark Brainliest to first correct answer !!
Answer:
A. -13 + i
Step-by-step explanation:
(5 - 9i) + (-4 + 7i) = 1 - 2i(1 - 2i) - (14 - 3i) = -13 + iI hope this helps!
A 40-degree angle is translated 5 inches along a vector. What is the angle measurement, in degrees, of the Image?
Answer:
40°
Step-by-step explanation:
As clarified in an online document, a translation along a vector (which is a line in a plane) of a figure, is equivalent to a translation along a coordinate grid, and therefore, given that a translation is a form of rigid transformation, the the dimensions and inclinations of the rays forming the preimage are the same as those in the image and the angles measurement in the preimage and the image are equal.
Therefore, given that the angle measurement of the image is 40-degrees, the angle measurement of the image is also 40-degree (40°) angle.
Is 0.752 a rational number?
Step-by-step explanation:
yes indeed it is rational
20
16
12
Cost (dollars)
8
4
0
4 8 12 16 20
Amount of Tea (ounces)
Which equation models this relationship?
Oy=
Oy = 40
#thisisacryforhelp!!!
Answer:
y=4x
Step-by-step explanation:
you just have to find the slope!
What survival rate in the 10th year would make the average rate of loss over the 10-year period equal to 38.0%?
Answer: 63%
Step-by-step explanation:
First find the rate of loss that would cause the average rate of loss over the 10-year period equal to 38.0%.
Assume that rate is x.
38 = (36.2 + 29.0 + 46.2 + 37.5 + 40.9 + 40.0 + 32.6 + 40.5 + 40.1 + x) / 10
38 = (343 + x ) / 10
380 = 343 + x
x = 380 - 343
x = 37%
The survival rate is the opposite of the rate of loss which means that the survival rate is;
= 1 - rate of loss
= 1 - 37%
= 63%
Suppose you are interested in testing whether the mean earning of men in California differs significantly from the mean earning of men in New York. If the number of men from California in the sample is 123 and the number of men from New York in the sample is 88, how many degrees of freedom are there?
Answer:
(123+88)-2= 209
Step-by-step explanation:
Cameron is signing up for a gym membership with a one-time fee to join and then a monthly fee to remain a member. Let C represent the total cost of the gym membership over t months. A graph of C is shown below. Write an equation for C then state the y-intercept of the graph and determine its interpretation in the context of the problem. C=? The y-intercept of the function is _____ which represents?
Answer:
C= 100+25t
Step-by-step explanation:
The y-intercept of the function is 100 which represents the one-time joining fee.
that is the correct answer, hope it helped!
The y-intercept of the function is 100 which represents a one-time fee to join.
Given that,
Cameron is signing up for a gym membership with a one-time fee to join and then a monthly fee to remain a member. Let C represent the total cost of the gym membership over t months.
The graph of the function C = 100 +25m is given,
the equation is the relationship between variables and represented as y = ax + b is an example of a polynomial equation.
Here,
C= 100+25t
Where C represents the total charge,
t represents the number of months as of 25 per month,
And 100 represents the one-time chargeable fee to join.
Thus, the y-intercept of the function is 100 which represents a one-time fee to join.
Learn more about equations here:
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explain how you would find the sign of the quotient 32÷(-2)
/
-16÷4
Answer:
PLEASE ANSWER MY QUESTION! In how many ways 3 different numbers can be chosen from 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 such that the sum of 3 numbers can be divisible by 3. Here (a, b, c); (b, c, a)...... are considered to be the same.
Step-by-step explanation:
PLEASE ANSWER MY QUESTION! In how many ways 3 different numbers can be chosen from 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 such that the sum of 3 numbers can be divisible by 3. Here (a, b, c); (b, c, a)...... are considered to be the same.
A town has a population of 17,000 and grows at 3% every year. what will be the population after seven years, to the nearest whole number
Answer:
20570
Step-by-step explanation:
3% of 17,000 is 510 so 17,000+7(510)=20570
Answer:
3570
Step-by-step explanation:
What is the geometric mean of 3 and 6
Answer:
The mean is 4.5
Step-by-step explanation:
u add the numbers and divide by how many numbers there are
Henry can type 3500 words in 70 minutes. Colin can type 1500 in 30 minutes. Brian can type 2200 words in 40 minutes. Who types at the fastest rate of words per minute?
Given:
Henry can type 3500 words in 70 minutes.
Colin can type 1500 in 30 minutes.
Brian can type 2200 words in 40 minutes.
To find:
The person who types at the fastest rate of words per minute.
Solution:
We know that,
[tex]\text{Rate of words per minute}=\dfrac{\text{Number of words}}{\text{Number of minutes}}[/tex]
Using this formula, we get
[tex]\text{Henry's rate of words per minute}=\dfrac{3500}{70}=50[/tex]
[tex]\text{Colin's rate of words per minute}=\dfrac{1500}{30}=50[/tex]
[tex]\text{Brian's rate of words per minute}=\dfrac{2200}{40}=55[/tex]
Since 55>50, therefore Brian's types at the fastest rate of words per minute.
Find the measure of each numbered angle.
angle 1 is
angle 2 is
angle 3 is
Answer: 360
253
Step-by-step explanation:
Which weighs more a 20 pound turkey or 320 ounces of turkey stuffing? How do you know?
Answer:
They are equal
Step-by-step explanation:
320 oz is 20 pounds:))
Which expression represents the factored form of 6x2-13-5 ?
Answer:
For the quadratic trinomial the following formula
, where are trinomial roots, holds.
1. For trinomial find the roots
2. The factoring form is
Answer: correct option is B.
Step-by-step explanation:
Answer:
(2x - 5)(3x + 1)
Step-by-step explanation:
Do you mean 6x^2 - 13x - 5?
6x^2 factors into 6x, x or 3x, 2x
-5 factors into -1, 5 or -5, 1
Use combinations of the factors until you get the correct trinomial.
6x^2 - 13x - 5 = (2x - 5)(3x + 1)
At a certain bookstore, you get a $5 coupon for every 4 books you buy. What is the least number of books you could buy to get $15 in coupons? Show your work.
Answer:
You need to buy 12 books to get a $15 coupon.
Step-by-step explanation:
Giving the following information:
You get a $5 coupon for every 4 books you buy.
First, we need to structure the total coupon formula:
Total coupon= 5*x
x= pack of four books
Now, for $15
15 = 5x
15/5= x
3= x
4*3= 12
You need to buy 12 books to get a $15 coupon.