Answer:
Quarters = 20
Dimes = 14
Step-by-step explanation:
Dime = x = 10 cent = $0.1
Quarter = y = 25 cent = $0.25
x + y = 34 - - - (1)
0.1x + 0.25y = 6.40 - - - - (2)
From (1)
x = 34 - y
0.1(34 - y) + 0.25y = 6.40
3.4 - 0.1y + 0.25y = 6.40
3.4 + 0.15y = 6.40
0.15y = 6.40 - 3.40
0.15y = 3
y = 3 / 0.15
y = 20
x = 34 - y
x = 34 - 20
x = 14
Quarters = 20
Dimes = 14
van purchased a DVD player on sale the original price was $171.50 the sale price was $149.37 what is the first step finding the percent markdown find the percent markdown
Answer:
12.90%
Step-by-step explanation:
Given ;
Original price = 171.50
Sale price = 149.37
To find the % markdown :
Markdown = Purchase price - sale price
171.50 - 149.37 = 22.13
(Markdown / purchase price) * 100%
(22.13 / 171.50) * 100%
0.1290379 * 100%
= 12.90%
Find the value of x using the pythagorean theorem.
Do the side lengths form a pythagorean triple?
Answer:
[tex] {x}^{2} = {9}^{2} + {40}^{2} \\ {x}^{2} = 81 + 1600 \\ {x}^{2} = 1681 \\ x = \sqrt{1681} \\ x = 41[/tex]
plzz ,thnx my answer...
PLZZZ. HELP ME. IM GIVING AWAY LOADS OF POINTSSSSSSSSSSSS
ADD. (+5)+(-19) =
how do u do this without a calculator
Answer:
-14
Step-by-step explanation:
Its the same as 5-19
10 = k + 3 + 6k
How do I solve this equation?
Answer:
k = 1
Step-by-step explanation:
[tex]10=k+3+6k\\\\10=k+6k+3\\\\10=7k+3\\\\10-3=7k+3-3\\\\7=7k\\\\\frac{7=7k}{7}\\\\\boxed{1=k}[/tex]
Hope this helps.
Answer:
K=1
Step-by-step explanation:
So first you would add the K's together.(6k+k=7k)
10=7k+3
Then you would subtract 3 from 3 and 10
7=7k
Divide 7 on both sides
k=1
Hope that helps:)
Sammi designs a quilt composed of squares as shown what is the measure of angle z
Answer:
z = 52 degrees
Step-by-step explanation:
the angle adjacent to angle Z is 38 degrees because it is vertical and equal to the angle named as 38 degrees
i suppose these are squares, which have right angles (90°)
so, 90 - 38 = m ∠ Z
PLEASE HELP ME! Suppose $800 can be invested either at 5% simple interest per annum or at 5% interest per annum, compounded annually. Using two tables of values and a single graph, compare the amounts for each type of interest after each year for the first five years. Be sure to show all the calculations used to obtain your answers. Also, provide explanations to clarify the information presented in the tables and in the graph.
Answer:
uh someone please help!!
Step-by-step explanation:
Mrs.Jones cuts an apple into eights. She eats 3/8 and give her son and daughter the rest
Answer:
i don't know what the rest of the question is, but she gives her kids 5/8 of an apple
Step-by-step explanation:
-6.4 = z/6
what does z =?
Answer:
-38.4
Step-by-step explanation:
Multiply both sides by 6 to get rid of the /6 then you would get z alone
Answer:YOUR ANSWER IS.......
35 HOPE U HAVE A GOOD DAY <3
Step-by-step explanation:THANK YOU FOR YOUR TIME!
Solve 4 two-step equations:
1. 2x + 12 = 4
2. -5c + 9 = -16
3. -12 = -7 + x/4
4. -n/6 + 4 = 3
Can someone help me with these questions please
Answer:
GK = MOKG = OMM = G (m also equals 50°)HK = 8ftRAC = GOE
Step-by-step explanation:
What would be the total cost of software F
over time?
The total cost of software F over time is $5000.
What is a satisfaction rate?For questions involving Customer Satisfaction Score, "Satisfaction Rate" is computed. It's calculated to provide you with an overall satisfaction rating of your respondents' responses to your goods and services.
Cost of Software F = $10000
Satisfaction rate with Software F = 90%
Cost of satisfaction level = $0
Cost of dissatisfaction level = $5000
Percentage of not satisfied = 10%
The total cost of Software F over time is :
= {($10000 x 90% - $0) + ($10000 x 10% - $5000)}.
= $5000
Therefore, cost of software F over time is $5000.
Learn more about the satisfaction rate : https://brainly.com/question/25940131
#SPJ2
Given that there are 5280 feet in a
mile and 60 minutes in an hour, convert 60mph to
feet per minute
(Please I need help badly)
Answer:
Correct answer to the question: There are 5280 feet in a mile and 60 minutes in an hour (needless to say). How fast is a car going 30 miles per hour traveling in feet per minute?
I hope it helps :)
sort the cities from closest to farthest from sea level.
Please help me
help me plsss!!!!!!!!
Answer:
the answer is b
hope that helps
Can someone pls help me with this
Answer:
4
Step-by-step explanation:
If you graphed it out you would see that the rise/run would be 4 over 1 which is also 4. On this table, you can see that the x is going up by 2 and the y is going up by 8 and 8/2 is also the same as 4/1 or 4 (rise/run = y/x).
Hannah has a chicken coop with 6 hens. Let X represent the total number of eggs the hens lay on a randomly chosen day. The distribution for X is given in the table.
A 2-column table with 7 rows. Column 1 is labeled number of eggs with entries 0, 1, 2, 3, 4, 5, 6. Column 2 is labeled probability with entries 0.02, 0.03, 0.07, 0.12, 0.30, 0.28, 0.18.
Which is the correct interpretation of the standard deviation?
The number of eggs laid on a randomly selected day would typically vary from the expected number of eggs by 1.96 eggs.
The mean number of eggs laid on a randomly selected day would typically vary by 1.96 from the expected number of eggs.
The number of eggs laid on a randomly selected day would typically vary from the expected number of eggs by 1.4 eggs.
The mean number of eggs laid on a randomly selected day would typically vary by 1.4 from the expected number of eggs.
Answer:
C
The number of eggs laid on a randomly selected day would typically vary from the expected number of eggs by 1.4 eggs.
The correct interpretation of the standard deviation of the discrete distribution is:
The number of eggs laid on a randomly selected day would typically vary from the expected number of eggs by 1.4 eggs.What is the standard deviation of a discrete distribution?To find the standard deviation, first we have to find the mean.The mean is given by the sum of each outcome multiplied by it's respective probability.The standard deviation is given by the square root of the sum of the difference squared of each outcome and the mean, multiplied by it's respective probability.It represents by how much the distribution varies from the expected value.In this problem, the distribution is:
[tex]P(X = 0) = 0.02[/tex]
[tex]P(X = 1) = 0.03[/tex]
[tex]P(X = 2) = 0.07[/tex]
[tex]P(X = 3) = 0.12[/tex]
[tex]P(X = 4) = 0.30[/tex]
[tex]P(X = 5) = 0.28[/tex]
[tex]P(X = 6) = 0.18[/tex]
Hence, the mean is:
[tex]E(X) = 0.02(0) + 0.03(1) + 0.07(2) + 0.12(3) + 0.3(4) + 0.28(5) + 0.18(6) = 4.21[/tex]
Then, the standard deviation is:
[tex]\sqrt{V(X)} = \sqrt{0.02(0-4.21)^2 + 0.03(1-4.21)^2 + 0.07(2-4.21)^2 + 0.12(3-4.21)^2 + 0.3(4-4.21)^2 + 0.28(5-4.21)^2 + 0.18(6-4.21)^2} = 1.40[/tex]
Hence, the correct option is:
The number of eggs laid on a randomly selected day would typically vary from the expected number of eggs by 1.4 eggs.As the measure is the number of eggs, not the mean number of eggs.
You can learn more about the standard deviation of a discrete distribution at brainly.com/question/21186607
Which method of taking notes includes a summary at the end?
charting
outlining
mapping
Cornell
Answer:
I would say c sorry if its wrong
Here is a story: Lin bought 4 bags of apples. Each bag had the same number of apples. After eating 1 apple from each bag, she had 28 apples left. А. 28 1. What part of the story does represent? x + 1 x + 1 x + 1 x + 1 B 28 2. Would eating an apple be represented by subtraction or addition? 1 X X C С 1 3. Which diagram best represents the story? 4. What is the value of x? X-1 x-1 x - 1 28
Answer:
X-1 X-1 X-1 28
Step-by-step explanation:
Find the Value of x and y. Iready
Answer:
x- 63 and y - 27
Step-by-step explanation:
Answer:
the last one
Step-by-step explanation:
Jamal runs for a track team. He ran 2.1 miles in 1/3 of an hour. What is Jamal's rate of speed?
Answer:
6.3
Step-by-step explanation:
Answer:
7h
Step-by-step explanation:
Stephanie bought 5 bananas for 1.25. How much would 13 bananas cost? please answer as soon as possible
Answer:
$3.25
Step-by-step explanation:
$1.25/5=$0.25 per banana
0.25x13=$3.25 for all 13 bananas
Find the measure of each angle
Answer:
1 = 44° (Opposite angles>
2 = 77° (By Angle sum property of a triangle)
3 = 82° ('' '' ' '' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ''')
631 - 2.9817 = ?
Please be sure to share the process!
Answer:
it's 63
explanation
2.9817
-
631
__________
631.9817
Because 2-1=1
Express the number 3.785 x 10^-6 in decimal form. Answer:
Which is the graph of y=-2x+3
Answer:
the top right
Step-by-step explanation:
Simplify the following surd expressions-
Answer:
[tex]\sqrt{2}[/tex] and 4[tex]\sqrt{11}[/tex]
Step-by-step explanation:
To simplify like surds, add/ subtract the coefficients.
(a)
[tex]\sqrt{2}[/tex] (6 - 5)
= [tex]\sqrt{2}[/tex] (1)
= [tex]\sqrt{2}[/tex]
(b)
[tex]\sqrt{11}[/tex] ( 1 + 3)
= [tex]\sqrt{11}[/tex] (4)
= 4[tex]\sqrt{11}[/tex]
5 minus negative 6 minus one equal 9
6. 188 students went on a field trip. Five buses were filled and 18
students traveled in cars. How many students were in each bus?
Answer:
34
Step-by-step explanation:
188 - 18 = 170 divided by 5 equals 34
Answer:
34 students per bus
Step-by-step explanation:
188 - 18 = 170, The number 170 is the total amount of students who were on buses
170 ÷ 5 = 34 This is the total number of students divide by the number of buses which gave the number of how many students were in each bus
A square of side 72 cm and a rectangle of length 90 cm have same perimeter. Find the difference in areas ?
A)216cm2
B)304cm2
C)324cm2
D)328cm2
Answer:
324 cm²
Step-by-step explanation:
→ Work out perimeter of square
72 + 72 + 72 + 72 = 288
→ Work out the width of the rectangle
288 - (90 × 2) = 108
108 ÷ 2 = 54
→ Work out area of square
72 × 72 = 5184 cm²
→ Work out area of rectangle
90 × 54 = 4860 cm²
→ Minus the areas from each other
5184 cm² - 4860 cm² = 324 cm²
Answer:
C) 324cm²
Step-by-step explanation:
1) they have the same perimeter so to find it you add all four sides of the square because they are all the same ( 72+72+72+72=288)
2) now you multiply 90 by 2 because the rectanglehas to sides of the same length(90×2=180) the answer you get you are going to subtract to 288 (288-180=108)
3) now divide 108 by 2 (108÷2= 54) the answer you get equals the width of the side of the rectangle
4) to get the area of the rectangle you multiply 54 with 90 (54×90=4,860) to get the area of the square you multiply 72 times 72 (72×72=5,184)
5) now you subtract 5,184 and 4,860 ( 5,184-4,860= 324cm²)
y+4=2y-3, find y and show your work.
Answer:
y = 7
Step-by-step explanation:
we can substitute y for 7 in the equation to confirm that y = 7
7 + 4 = 2(7) - 3
7 + 4 = 14 - 3
11 = 14 - 3
11 = 11
(sorry if this is confusing but I hope it helped)