Answers
Answer:
y = 0.35xStep-by-step explanation:
Janet ⇒ 3 postcards ⇒ $1.05
Cost of postcard: 1.05/3 = $0.35Rosi ⇒ 5 postcards ⇒ $1.75
Cost of postcard: 1.75/5 = $0.35Tanya ⇒ 8 postcards ⇒ $2.80
Cost of postcard: $2.80/8 = $0.35We see in all 3 cases cost of postcard is same, the cost and numbers are proportional and the relationship is:
y = 0.35xRelated Questions
A student cuts a cube perpendicular to its bases. What two dimensional cross section could result from the student slicing the cube perpendicular to its bases
Answers
Answer:
Triangle
Step-by-step explanation:
Answer:
Triangle
Step-by-step explanation:
Describe each part of the complex number:
-5-i
Answers
Answer:
Real Part = -5
Imaginary part = -1
Step-by-step explanation:
We need to describe each part of the complex number: [tex]-5-i[/tex]
Complex Number
A complex number is of form [tex]a+bi[/tex] where a is real part while b represents the imaginary unit.
In the given complex number: [tex]-5-i[/tex]
Real Part = -5
Imaginary part = -1
8. Complete the statement using <, >, or =.
a. 21-51
b. -5__ _|−9|
|5|_________|-5|
d. |−1|___________|—8|
C.
Answers
We can complete the given statements as follows-
a. 21 < 51
b. -5< |-9|
c. |5| = |-5|
d. |−1|< |-8|
Let us look at each statement one by one-
a. 21_51
here, we can clearly see that 21 is smaller than 51, so we use the < sign.
Thus, 21 < 51
b. -5_|-9|
here, on the right hand side we have a modulus sign. The modulus sign implies that we take only the absolute value.
|−9| = 9
Now, if we compare -5 and 9, 9 is clearly greater.
Hence, -5< |-9|
c. |5|__|-5|
here, |5| = 5
and |-5| = 5
Thus, |5| = |-5|
d. |−1|__|-8|
Here, |−1| = 1
and |—8| = 8
And 1 < 8,
thus, |−1|< |-8|
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Write an equation of the line that passes through the given point and is perpendicular to the given line.
(–6, –4); y =1/3x + 1
Answers
Slope would be negative and reciprocal of 1/3, slope = -3
Plug into y = mx + b
y = -3x + b, plug in point
-4 = -3(-6) + b, b = -22
Solution: y = -3x - 22
one important point to remember is that just because a difference between two treatment groups is found to be statistically significant, it does not mean that the difference:
Answers
Researchers use a finding's Effect size to measure magnitude and reliability.
a difference in significance does not always make a significant difference.
One reason is the arbitrary nature of the p<0.05 cutoff. We could get two very similar results, with p=0.04 and p=0.06, and mistakenly say they’re clearly different from each other simply because they fall on opposite sides of the cutoff.
The second reason is that p values are not measures of effect size, so similar p values do not always mean similar effects. Two results with identical statistical significance can nonetheless contradict each other.
Effect size refers to the measure of the magnitude of the experiment's effect. In other words, effect size measures how important is the relationship between two variables. The larger the effect size, the stronger this relationship is. Moreover, when the effect size is large, you are more likely to be dealing with a relationship that has practical significance.
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Graph the line that passes through the points (-2, -3) and (-4, 2) and determine
the equation of the line.
HELP ASAP
Answers
Answer:
y=-2.5x+1/2
Step-by-step explanation:
The longest leg of a right triangle is 12 inches. The hypotenuse is 3 inches longer then twice the shortest leg. How long is the shortest leg and the hypotenuse of the triangle.
Answers
Answer:
Shortest Leg: 5 inches, Hypotenuse: 13 inches
Step-by-step explanation:
A right triangle follows the pythagorean theorem, a^2+b^2=c^2. C is the hypotenus. A combination found using this is 5, 12, and 13. To double check this, we know that the hypotenus is 2x+3, where x is the smallest leg.
-x + 2 y = -12
7x + 8y = -26
X=
Y=
Answers
Answer:
(2,-5)
Step-by-step explanation:
using a graphing calculator and inputting these two equations, you end with the coordinates (2,-5).
Answer:
2,-5
Step-by-step explanation:
3. The diagonal of a rectangular field is 169 m. If the ratio of the length to the width is 12:5, find the:
(a) dimensions;
(b) perimeter of the field.
Answers
The dimensions are 156m and 65m
The perimeter is 442m.
What are the dimensions?The formulae that can be used to determine the dimensions when the ratio of the dimensions are given and the diagonal is given are:
h = [tex]\frac{H}{\sqrt{ 1 + r^{2} } }[/tex]
w = [tex]\frac{Hh}{\sqrt{ 1 + r^{2} } }[/tex]
Where:
h = height H = hypotenuse r = ratio of width to the height : 5/12 = 0.41667w = widthh = [tex]\frac{169}{\sqrt{ 1 + 0.41667^{2} } }[/tex] = 156m
w = [tex]\frac{(169 x 156)}{\sqrt{ 1 + 0.41667^{2} } }[/tex] = 65m
The perimeter of a rectangle = 2(length + width)
2(156 + 65)
2(221) = 442m
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Students in school - how do we pay taxes? Get a job? Raise children?
Schools- solve for x
Plz help me With number 8 don’t get it thx
Answers
1) Factor out the common term which is 2.
2(1+2b)/2_>3b+6
2) Cancel 2.
1+2b_>3b+6
3) Subtract 1 from both sides.
2b_>3b+6-1
4) Simplify 3b+6 -1 to 3b+5
2b_> 3b+5
5) Subtract 3b from both sides.
2b-3b_>5
6) Simplify 2b-3b to -b.
-b_>5
7) Multiply both sides by -1
b_< -5
Hope this helps :)
1. 6x+4x−1=2(5x+4)
2. 48x+43=47x+43
3. 2(3x+8)=2x+16+4x
4. 0.4(5x−15)=2.5(x+3)
5. 3(4x+2)=20x−9x+2
Answers
Answer:
1 . -9 = 0
2 . x = 0
3 . 0 = 0
4 .x = -27
5 . x = -4
Step-by-step explanation:
Translate (3,-5) down 2 units.
Then reflect the result over the x-axis.
What are the coordinates of the final point?
Answers
If Elena eats 2 servings of granola , how many calories dose she eat?
Answers
Answer:
However much calories 1 granola has it would be times 2
Step-by-step explanation:
Answer: 264 calories.
Step-by-step explanation:
Each serving has 132 calories.
Short Response
6. Are the triangles at the right simílar? Explain.
Answers
Answer:
Yes they are similar because they are both right angles but the one on the right is bigger than the one on the left.
Step-by-step explanation:
Use what you know to try to solve the problem below. A scientist is using a tracking device to measure how fast a blue whale swims. Data from the device show that the whale swam at a constant rate for 5 minutes and covered 2.5 miles in that time. Make a graph showing the change in the whales distance over time. How far does the blue whale swim in 1 minute? this 25 mi: 5
Answers
The graph showing the change in the whales distance over time is given by y = 0.5x
How to solve an equation?An equation is an expression that shows the relationship between two or more numbers.
The standard form of a linear equation is:
y = mx + b
Where m is the rate of change and b is the y intercept.
Let y represent the total distance covered for x minutes.
Let the constant rate be m miles per minute. The whale swam at a constant rate for 5 minutes and covered 2.5 miles in that time. Hence:
2.5 = 5(m)
m = 0.5 miles per minute
y = 0.5x
In 1 minute:
y = 0.5(1) = 0.5 miles
The graph is given by y = 0.5x
The graph of the amount of money that River Run Canoes have a y intercept of 10 and slope of 10.
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What number can you add to 7 to get a sum of zero
Answers
If you do 7 plus a negative 7 you will receive the sun of 0.
A computer salesman makes $10 per hour and 0.5% commission on what he sales. If he works for 40 hours this week, and he sales $4,500 of computers, how much will he make total?
Answers
Answer:
Total income earn = $422.5
Step-by-step explanation:
Given:
Earning per hour work = $10
Total hour = 40
Commission = 0.5% on sales
Total sales = $4,500
Find:
Total income earn
Computation:
Income from hour work = $10 x 40
Income from hour work = $400
Total commission = 0.5% x sales
Total commission = 0.5% x $4,500
Total commission = $22.5
Total income earn = $400 + $22.5
Total income earn = $422.5
solve for n. n/-5= 7
Answers
Answer:
n = -35
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define equation
n/-5 = 7
Step 2: Solve for n
Multiply both sides by -5: n = -35Step 3: Check
Plug in n into the original equation to verify it's a solution.
Substitute in n: -35/-5 = 7Divide: 7 = 7Here we see that 7 does indeed equal 7.
∴ n = -35 is a solution to the equation.
To estimate your average monthly salary,divide your yearly salary by the number of months in year. Write and solve an equation to determine your yearly salary
when your average monthly salary is $4560.
I need this question answer asap!
Answers
Answer:
Solved: To estimate your average monthly salary, divide your yearly salary by the number of months in a year. Write an equation to determine your yearly salary when your average monthly salary is $4560. - Slader.
what is 8x - 4 is less than -36 show all work
Answers
Answer:
x>-4
Step-by-step explanation:
8x-4>-36
add 4 to both sides 8x>-32
divide both sides by 8 x>-4
In the parallelogram shown, AE = t + 2, CE = 3t − 14, and DE = 2t + 8. Parallelogram A B C D is shown. Diagonals are drawn from point A to point C and from point D to point B and intersect at point E. What is the length of line segment DB? 20 units 24 units 48 units 68 units
Answers
Answer:
48 units
Step-by-step explanation:
A parallelogram is a polygon with four sides. Opposite sides and opposite angles of a parallelogram are congruent.
The diagonals of a parallelogram bisect each other.
In parallelogram ABCD, AC and DB are the diagonals. Since the diagonals meet at E, hence:
AE = CE and DE = BE (diagonals of a parallelogram bisect each other).
Since AE = CE, hence:
t + 2 = 3t - 14
3t - t = 2 + 14
2t = 16
t = 8 units
Therefore DE = 2t + 8 = 2(8) + 8 = 24 units
DE = BE = 24 units
But DB = DE + BE
DB = 24 + 24
DB = 48 units
Answer:
The answer is 48 units
Step-by-step explanation:
yall got any game ideas? i aint got tha energy to be doin school work, tell em to me :)
Answers
Answer:
Games to make? or play? If play then I suggest age of empires 2 DE, the games insane
Step-by-step explanation:
A store marks up merchandise 27%. The original price of an item is $725. What will be the retail price?
Answers
Answer:
$168
Step-by-step explanation:
cause the store marks up the price by 115%
The original price of the item was $725
Store increases the margin by 27%
Let us assume the retail price to be x
To get the retail price we need to add the margin added by the store to the original price which is $725 in this case.
So,
x= 725 × 127/100
x= 92075/100
x= 920.75
Another method-
Let retail price be x
Since the original price of the item is $725
The store increases the price by 27%
Add 27% of $725 to the original price to get the retail price
725 × 27/100
= $195.75
Add 195.75 to the original price to get the retail price
x= 195.75+ 725
x= 920.75
The Retail price which will be charged by the store on the merchandise will be $920.75
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Can anyone help with thisss
Answers
Whats The Answer Marking Brainliest, Please explain your answer:D..........
Answers
2^2 = 4
6-4= 2
and 4*2 equals 8.
Find the distance between the two points rounding to the nearest tenth (if necessary).
(3,-3) and (-3,5)
Answers
Answer: My written explanation may come out weird so I will screenshot it
d = 10
For:
(X1, Y1) = (3, -3)
(X2, Y2) = (-3, 5)
Distance Equation Solution:
d=(−3−3)2+(5−(−3))2−−−−−−−−−−−−−−−−−−−√
d=(−6)2+(8)2−−−−−−−−−−√
d=36+64−−−−−−√
d=1–√00
d=10
Question is in the picture
Answers
Answer:
10
Step-by-step explanation:
70 / 70 = 1
700 / 70 = 10
The rate is 70.
Answer: 10 weeks
Step-by-step explanation:
3 weeks ould be 70 *3
so for 700 books it would be 700/70 and you would get 10
what is the volume and with of a cube
Answers
3xX
Step-by-step explanation:
a) An agent sold some carpets at the rate of Rs 4500 each and received Rs 9000 as commission
at 10%. Find the number of carpets he sold.
Answers
Answer:
A
Step-by-step explanation:
not sure gusto ko lang tumulong
Multiply by 10
Rs 90,000 = 100%
90,000/4500 = 20 Carpets sold
Mr. majors ordered six hot dogs and a bucket of popcorn at the concession stand. if the popcorn was $3.20 and the total was $18.20, what was the price of one hot dog?
Answers
Answer:
The price of one hotdog is $2.50
Step-by-step explanation:
You can first write this out as an equation to make it easier to solve.
Lets say that x= the price of a hot dog and y= the price of popcorn
The equation would be:
6x + y = 18.20
We know that y= 3.20 so we can subtract 3.20 from 18.20. That will leave us with 6x = 15
Then, we just have to divide both sides by 6 and our answer comes out as x = 2.50
Answer:
2.50
Step-by-step explanation:
18.20 - 3.20 = 15.00
15.00 ÷ 6(hotdogs) = 2.5
Add a 0 at the end: 2.50
So the cost of one hotdog is $2.50
( why does that hot dog cost that much ;-; )