PLz help me! We r doing semester finals and i need to get this lesson finished in 2 hours so i can get my grade up!
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Answer:
$84
Step-by-step explanation:
1. If 20% is marked off, then you are selling it for 80%.
2. 455 * 80% = 364
3. Since you are finding the cost markup from 280, then 364-280=84
Related Questions
A picture shows a roof of a house. It has a right triangle-shaped with the base of 12 feet as span and height of 4 feet as height of roof. The hypotenuse of the triangle is the slope of the roof.
The pitch of the roof is
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Answer:
Step-by-step explanation:
Pythagorean Theorem:[tex]a^{2} + b^{2} = c^{2}[/tex]
[tex]12^{2} + 4^{2} = c^{2}[/tex]
144 + 16 = [tex]c^{2}[/tex]
160 = [tex]c^{2}[/tex]
Square root 160
12.6491106 = c
Round to the nearest whole number
13=c
Since the sanctuary was established, the estimated population of American robins in the area has increased from 86 to 102.
Describe the percent change in the estimated population of American robins. Round to the nearest whole percent.
Enter your answer in the box to complete the sentence.
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Answer:
15.7%
Step-by-step explanation:
102-86=16
(16*100)/102
1 million to the power of 10
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Step-by-step explanation:
The answer of 1 million to the power of 10
= 1e+60
This is 6th grade work
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Answer:
5(5b-1z)
Step-by-step explanation:
we know that we have 25b and -5z
we will have to multiply 5 with everything that is between the () mark, and still should have the same amount of "b"s and "z"s
(to find the numbers, you will have to divide, in this case by 5
25/5= 5 -> 5b
5/5=1 -> 1z
--> 5(5b-1z) = 25b-5z
A factory that manufacturers school supplies will not sell any ruler whose actual length is more than 0.05% different than it's intended length.
Determine the smallest possible length of a 12-inch ruler that would meet this qualification. inches
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Answer: 11.994
Step-by-step explanation:
0.05%(0.0005) x 12 = 0.006
12 - 0.006 = 11.994 inches
PLS HELP ME!! THIS IS URGENT!!!
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Answer:
no b is the correct answer
Answer:
Step-by-step explanation:
im pretty sure its b
Plz answer this
What is the sum of all positive integer solutions less than or equal to $20$ to the congruence $13(3x-2)\equiv 26\pmod 8$?
Sorry about LaTeX
Answers
1
pls mark me as BRAINLIEST
Answer:
36
Step-by-step explanation:
AoPs Is FuN. You were doing the right thing just finish solving if u need explanation comment
can some1 make a word problem for this equation
0.5x + 4 ≥ 16
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44? maybe i think it is but not to sure
7 to 10
Round the decimal to the nearest hundredth, then make that a percent
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Please answer like this:
1) -insert answer-
2) -insert answer-
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Answer:
1) 2^9 = 512
2) 2^(3t) = 2^6 for t=2
Step-by-step explanation:
1) An exponent is used to signify repeated multiplication. Here, the factor 2 is repeated 9 times, so the expression can be written using an exponent as ...
2^9
Using any of a variety of means, the value of this expression can be found to be ...
2^9 = 512
__
2) Assuming the bacteria reproduce by multiplying by some factor in a given time, we can divide the original expression into 3 parts:
(2×2×2) × (2×2×2) × (2×2×2)
If this represents the number after 3 hours, then the number after 2 hours is expected to be ...
(2×2×2) × (2×2×2) = 2^6
That is, there will be (2 h)/(3 h) = 2/3 times as many multiplications by a factor of 2. (2/3)(9) = 6 will be the exponent for the number after 2 hours.
2. as you can split up the fact in 3 hours it is 2^9 to find out one hour (divide by 3) which is 2^3 so we would just multiply it by 2 which equals 2^6
If Mia can run 15 laps in 24 minutes, how many minutes will it take her to run 20 laps
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Answer:
15=24
20=x
cross multiply
15x=24*20
15x=480
divide both sides by 15
x=480/15
x=32
it will take her 32 minutes
Answer:
32 minutes
Step-by-step explanation:
24/15 = 1.6 laps per minute
1.6 * 20 = 32 minutes
35 is 20% of what number
Pls show your work with a double number line
Thank you!
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Answer:
X20=35/100 do 35 times 20 which is 700do 700 divided by 100 so the answer is 7
Step-by-step explanation:
Answer the following questions.
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Answer:
kenzie can only buy 2 sets of scrunchies unless she can buy half then it would be 2.5.
Step-by-step explanation:
20 scrunchies = $3.00 meaning= $3.00+$3.00 = 6 dollars. Anymore would be over the limit of money she would be able to use for the scrunchies.
The account balance of each of three children at the end of a month is shown below: John has −$2.75
Cheryl has −$3.00
Andrew has as much savings in his account as the amount John owes the bank.
Part A: On a blank paper, draw a number line from −4 to +4. Plot points on the number line to show the account balances of the three children. Label the points using the name of each child. Describe in detail how you created and labeled this number line, and what it looks like in detail. (5 points)
Part B: Determine whether John or Cheryl owes the bank more. Use absolute values and inequalities to write statements that justify your conclusion. (5 points)
(HELP I JUST NEED PART B :)) (and give a complete explanation please!! i wanna learn so i dont ask questions the next time.)
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Cheryl owes more money to the bank. |-3| = 3 and |-2.75| = 2.75. As you can see Cheryl's amount of money is greater when you find the absolute value of it, but since it was negative it means that she actually owes more money.
Step-by-step explanation:
What is 110% of 160?
The first person to answer gets Brainliest
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Answer:
176 Basically find whats 10% of 160 and then add that to 160 and there is your answer
can someone help me with this please ? D: 7th grade math
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Answer:
2
Step-by-step explanation:
-6*-9=54
-9/-3=3 and 3 cubed=27
54/27=2
Parenthesis
Exponents
Multiply
Divide
Add
Subtract
(-9/-3)=3
3^3=9
-6*-9=54
(a negative times a negative is a positive)
54/9
6!!!
hope this helps! have a great day!!!
Fiona is taking some time to balance her check register at the end of the month. Use the check register to answer questions for 6 and 7. Based on the transactions, what was the balance in Fiona’s account after she deposited her birthday gift on 6/4?
$780
$690
$340
$430
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Is the corrects answer
Hope this helps
(Please answer this Plz nothing not essential) What is the sum of all positive integer solutions less than or equal to $20$ to the congruence $13(3x-2)\equiv 26\pmod 8$?
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Answer:
$13(3x-2)\26\ $8 is less than twenty dollars.
Step-by-step explanation:
Just trust me I don't know how to explain I just do it.
need an an answer fast 100 points to the first person with the correct answer pogg
Which expression completes the table?
Step Justification
−
2
.
5
(
4
x
−
8
)
+
1
.
2
(
5
x
−
1
)
Given
? Distributive Property
=
−
10
x
+
6
x
+
20
−
1
.
2
Commutative Property of Addition
=
−
4
x
+
18
.
8
Addition of Like Terms
A.
=
10
x
+
20
+
6
x
−
1
.
2
B.
=
−
10
x
+
20
+
6
x
−
1
.
2
C.
=
10
x
−
20
+
6
x
−
1
.
2
D.
=
−
10
x
−
20
+
6
x
−
1
.
2
Answers
Answer:
10.18
Step-by-step explanation:
yes
please help me I need help this is due today.
Answers
Step-by-step explanation:
the equation is y=mx + b. the m (or the thing that comes before the x in the equation) is your slope, the y intercept is the last number. if the last number is preceded by a minus sign, the intercept number is negative
Answer:
For example, number 1's slope is 5/3. On a graph, you would go up 5 (not in block, but in numerical value) and right 3. The y-intercept is -2. This is where your line starts on the graph.
Step-by-step explanation:
y=mx+b b= y-intercept y-intercept=where the line crosses the y-axis m=slope slope== rise/run or slope formula, m=y2-y1/x2-x1
Which statement about the graph is true?
1 ,The graph shows a proportional relationship because it is a line, and the difference between each point is the same.
2, The graph shows a proportional relationship because it is a line, and each x-value is a multiple of 2.
3 , The graph does not show a proportional relationship because each point written as a ratio gives a different value.
4, The graph does not show a proportional relationship because a line that increases by 1 in the y-value cannot have a constant of proportionality.
Answers
Answer:
4
Step-by-step explanation:
i just know
the table shows, step-by-step, how to simplify the algebraic expression 3 (x- 5) + 4x. Justify step 4.
A) Multiply
B) Commutative property
C) Combine like terms
D) Associative Property
Answers
Answer: C , combine like terms
Step-by-step explanation:
In a city, there are 16 swimming pools. On weekends, 6 of the pools are open.
George says the ratio of pools open on weekends to the total number of pools is 6:16.
Emma says the ratio of pools open on weekends to the total number of pools is 6:11.
Which student is correct? Explain.
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Answer:George
Step-by-step explanation: George is correct because Emma said that the total number of pools in the city is 11 even though it says there are 16 pools in the city, but she got the number of how many are open, George is right because it says what is the ratio of pools open on the weekends to the total amount of pools, and it says there are 6 pools open on the weekend and there are 16 pools in the city in total so he would do 6:16.
George is correct they said that the ratio of pools open on weekends to the total number of pools is 6:16.
What are ratios and proportions?A ratio is an ordered pair of numbers a and b, denoted by the symbol a / b, where b does not equal zero. A proportion is an equation that sets two ratios equal to each other. For example, if there is one boy and three girls, the ratio could be written as 1: 3. (for every one boy there are 3 girls) One-quarter are boys and three-quarters are girls.
Given that In a city, there are 16 swimming pools. On weekends, 6 of the pools are open.
George says the ratio of pools open on weekends to the total number of pools is 6:16.
Emma says the ratio of pools open on weekends to the total number of pools is 6:11.
George is right that the ratio of the open pools to the total pools will be 6:16.
To know more about ratios and proportions follow
https://brainly.com/question/2914376
#SPJ2
help me plzzzzzz 5 buck
Answers
Answer:
The unit rate for the first bag is about 2.50 and for the second bag it is about 2.42. The second bag is the better bag because it has a smaller unit rate.
Step-by-step explanation:
Divide the amount of money by the weight of each bag to find the unit rate.
A i do believe
Step-by-step explanation:
PLS I NEED HELP ASAP
Answers
Answer:
(-13.5, 4.5)
Step-by-step explanation:
Find the units digit of the following within the indicated number base: $(14_8)^2$
(I will say brainliest whoever gets correct first.)
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You have a meal at a restaurant. The sales tax is 8%. You leave a tip for the waitress that is 20% of the pretax price. You spend a total of $23.04. What is the pretax price of the meal?
The pretax price of the meal is $_______
Answers
Answer:
$18
Step-by-step explanation:
I multiply the tax by the pretax price of the meal, and I get 8% * xI multiply the tip by the pretax price of the meal, and I get 20% * xI make an equation, and make sure to add the original x2/25x + 1/5x + x=23.0432/25x=23.04x=18Therefore, the pretax price of the meal is $18A garden hose was left on in a yard and spilled 78 gallon every 23 minute. Find the average number of gallons spilled per minute.
Answers
Answer:
3.391 Gallons Per Minute
Step-by-step explanation:
78/23=3.391
Round 3.391 to 3.4
Answer:
≈3.39130434783 gallons per minute
Step-by-step explanation:
The information we get is a ratio, describing how many gallons of water will be wasted in 23 minutes, expressed as:
[tex]78 : 23[/tex] OR [tex]\frac{78}{23}[/tex]
We will use the fraction, the denominator is representing the time, which in this case, is 23 minutes. We want to have the denominator as 1 to find how much water will be spilled in one minute, to do this, we can divide both the numerator and denominator by 23:
[tex]\frac{78/23}{23/23} \\ =\frac{3.39130434783...}{1}[/tex]
And of course, if there's a need to round, go ahead.
And please do not waste water!
I need help due today
Answers
Answer:
Step-by-step explanation:
y=mx+b b= y-intercept y-intercept=where the line crosses the y-axis m=slope slope== rise/run or slope formula, m=y2-y1/x2-x1
For example, number 1's slope is 5/3. On a graph, you would go up 5 (not in block, but in numerical value) and right 3. The y-intercept is -2. This is where your line starts on the graph.
sorry, cant help ya there buddy
Multiplying Integers with Integer Tiles –5(–2) =
Answers
Answer:
-5 x -2 = 10
Step-by-step explanation:
- x - = +
5 x 2 = 10