Answer:
20%
Step-by-step explanation:
let the percent be p
rewriting the expression:
p% of 170 is 34
or mathematically,
p% x 170 = 34
(p / 100) x 170 = 34 (divide both sides by 170)
p/100 = 34/170 (multiply both sides by 100)
p = (34 / 170) x 100
p = 20
hence 34 is 20% of 170
What is another name for 1
a single
a lone
a solitary
a unit of
Find mDEC
A) 90
B) 95
C) 100
D) 120
Answer:
C) 100
Step-by-step explanation:
line AC intersects line DB,
hence ∠AEB and ∠DEC are opposite angles and thus
∠AEB = ∠DEC
5x-10 = 4x+12 (subtract 4x from both sides)
5x - 4x - 10 = 12
x - 10 = 12 (add 10 to both sides)
x = 12 + 10 = 22 degrees
∠DEC = 4x+12
= 4(22) + 12
= 88 + 12
= 100 degrees
1. What is the solution to the system of equations?
3x - 6y = -12
x - 2y = -8
(a) Use the substitution method to justify that the given system of equations has no solution.
(b) What do you know about the two lines in this system of equations?
Answer:
Step-by-step explanation:
(a)
3x - 6y = -12.,......(1)
x - 2y = -8.…......(2)
from equation (2),by adding 2y to both sides, x= -8 + 2y.....(3)
Let's substitute the value of x in equation (1)
3(-8 + 2y) - 6y = -12
-24 + 6y - 6y = -12
6y - 6y = 12..,..(4)
From equation (4) we can see that both equations (1) and (2) has no solutions for x and y
(b)They are two parallel lines of slope of 2 and intercepts on y at 2 and 4
(a) The given system has no solution.
(b) The lines are parallel and never intersect.
To determine the solution of the system of equations using the substitution method, follow these steps:
Substitution Method
Start with the given system of equations:Interpretation of Result
Because the system of equations has no solution, we deduce that the lines represented by these equations are parallel and never intersect. Thus, they do not share any common points.
Therefore, the system of equations has no solution, and the lines are parallel.
The perimeter of the square can be represented by the expression 36x+44 robin wants to write an equivalent expression for the perimeter that shows the side length of the square
Answer:
4 (9 x + 11) is an equivalent expression for the perimeter that shows the side length of the square is (9 x + 11).
Step-by-step explanation:
Here, given The perimeter of the square = (36 x+44)
Now,as we know :
PERIMETER OF SQUARE = 4 x ( SIDES)
Simplifying the perimeter expression.
Take 4 common out of the expression (36 x+44), we get:
(36 x+44) = 4 (9 x + 11)
⇒ Perimeter of the square = 4 x (9 x + 11)
⇒4 x ( SIDES) = 4 x (9 x + 11)
⇒ Each Side = (9 x + 11)
Hence, 4 x (9 x + 11) is an equivalent expression for the perimeter that shows the side length of the square is (9 x + 11).
Diagram 1 shows a triangle with feet of length 4y cm and height (y + 5) cm. Diagram 2 shows a square with a length of y cm. Given the area of the triangle exceeds the rectangle by 39 cm². Calculate the perimeter of the two diagrams.
Answer:
Step-by-step explanation:
Diagram 1
Area = b*h/2 = 4y*(y+5)/2 = 2y*(y+5)= 2y² + 10y
Diagram 2
Area = side*side = y * y = y²
the area of the triangle exceeds the rectangle by 39 cm².
2y² + 10y - y² = 39
y² + 10y = 39
y² + 10y -39 = 0
y² +13y - 3y - 3*13 = 0
y(y+13) -3(y+13)=0
(y+13)(y-3) = 0
y + 13 = 0 will not come as length couldn't be in negative
y - 3 = 0
y = 3 cm
Diagram 2:
Perimeter = 4*side = 4*y = 4*3 = 12 cm
which expression has a value of 15 when n=7
Answer:
n + 8
Step-by-step explanation:
Next time add a picture please.
Answer:
19 - 28/n
Step-by-step explanation:
i did the test ;)
Solve the inequality -24 < x - 3 - 8x.
O A.x2-3 B.X2-9 C.x23 D.xs3
Answer:
Step-by-step explanation:
-24 < x - 3 - 8x
-24 < -7x - 3
-24 + 3 < - 7x
-21 < - 7x ......divide by -7 and change ur sign
-21/-7 > x
3 > x <==== ur answer
** in an inequality, if u multiply or divide by a negative, u have to change the sign
:
Step-by-step explanation:
-24 < x - 3 - 8x
-24 + 3 < x - 8x
-21 < -7x
7x > 21
x > 21/7
x > 3
Khaleah has 35 pencils. She gave away 20% of her pencils to her friends. How
many pencils did she give away?
Answer:
7
Step-by-step explanation:
35 times .20 is 7
evaluate x+6 when x=7
Therefore, the solution of the given equation is [tex]13[/tex].
What is the simplification?
Simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.
Here given equation is
[tex]x+6[/tex]
when [tex]x=7[/tex]
So, it would be
[tex]x+6=7+6\\=13[/tex]
Hence, the solution of the given equation is [tex]13[/tex].
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The camera was $824.99 but I had to pay the additional 10% tax. What did I pay in total for my camera?
Answer:
$907.489
Step-by-step explanation:
Cost of camera : $824.99
Tax = 10%
tax on camera = 824.99 x 10 /100 = 82.499
total amount to be paid = cost + tax
$824.99 + $82.499 = $907.489
Answer:
$907.49
Step-by-step explanation:
Figure out what 10% of 824.99 is. You should get 82.499 which you round up to the nearest hundredth because this is money which gives you 82.50.
824.99+82.50=907.49
I need help please and thank you
Answer:
35
Step-by-step explanation:
An isosceles triangle always has two equal angles. As there cannot be another 110° (the triangle cannot have over 180° total), the other two angles must equal eachother. 180° - 110° = 70°. 70° represents the other two angles, so it needs to be divided in 2 to get the answer of 35°.
Each bagel sells for $1.50 and a muffin sells for $2.00. One morning the bakery sells 35 bagels and muffins for $58.50. How many bagels and muffins did they sell?
The bakery sold 23 bagels and 12 muffins.
Step-by-step explanation:
Given,
Cost of each bagel = $1.50
Cost of each muffin = $2.00
Total sold = 35
Revenue generated = $58.50
Let,
x be the number of bagels
y be the number of muffins
According to given statement;
x+y=35 Eqn 1
1.50x+2y=58.50 Eqn 2
Multiplying Eqn 1 by 2
[tex]2(x+y=35)\\2x+2y=70\ \ \ Eqn\ 3[/tex]
Subtracting Eqn 2 from Eqn 3
[tex](2x+2y)-(1.50x-2y)=70-58.50\\2x+2y-1.50x-2y=11.50\\0.50x=11.50[/tex]
Dividing both sides by 0.50
[tex]\frac{0.50x}{0.50}=\frac{11.50}{0.50}\\x=23[/tex]
Putting x=23 in Eqn 1
[tex]23+y=35\\y=35-23\\y=12[/tex]
The bakery sold 23 bagels and 12 muffins.
Keywords: linear equation, elimination method
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What type of number can be written as a fraction a over b where a and b are integers and b is not equal to zero ?
What type of number can be written as a fraction a over b where a and b are integers and b is not equal to zero ?
The answer is integers.
Examples of integers: 5, -8, 6/9, 100, -4/2
Happy to help!
whats the radical form of 192????
Answer:
The radical form of [tex]192[/tex] is [tex]8\sqrt{3}[/tex].
Step-by-step explanation:
Given the number is [tex]192[/tex], we need to find its radical form.
We will do the factorization of [tex]192[/tex].
[tex]192=2\times2\times2\times2\times2\times2\times3=2^6\times3\\192=(2^3)^2\times 3\\192=8^2\times3\\[/tex]
Taking square root both sides we get,
[tex]\sqrt{192}=\sqrt{8^2\times 3}\\\sqrt{ab}=\sqrt{a}\times \sqrt{b}\\\sqrt{192}=\sqrt{8^2}\times \sqrt{3}\\\sqrt{192}=8\times\sqrt{3}\\\sqrt{192}=8\sqrt{3}[/tex]
So, the radical form of [tex]192[/tex] is [tex]8\sqrt{3}[/tex].
Sarina made $42,000 in the calendar year. How much does she owe in federal taxes?
Applying the 2020 US tax brackets, Sarina would owe $4,842.50 in federal taxes on her $42,000 income.
Explanation:The amount of federal taxes that Sarina owes on her $42,000 income can be determined by referring to the tax brackets provided by the IRS. In 2020, the federal income tax rates for individuals are as follows:
10% on income up to $9,875 12% on income over $9,875 to $40,125 22% on income over $40,125 to $85,525 And so on to a maximum rate of 37%
According to these brackets, Sarina would pay 10% on her first $9,875 and 12% on the remaining amount up to $40,125. Any income she earned over that up to $85,525 would be taxed at 22%. Given that Sarina made $42,000, she falls into the second tax bracket. Therefore, her tax would be calculated as follows:
10% of $9,875 is $987.50 12% of ($42,000 - $9,875) is $3,855
By adding these amounts together, we can conclude that Sarina would owe $4,842.50 in federal taxes for that year.
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Sarina, a single filer earning $42,000 annually, would first deduct the standard deduction to calculate taxable income. Her taxable income of $28,350 would be taxed at 10% for the first $11,000 and at 12% for the next $17,350. The total federal tax owed by Sarina would be $3,182.
The amount Sarina owes in federal taxes depends on the tax rates applied to income brackets. For a single taxpayer earning $42,000 a year, we look at the given tax brackets to calculate the tax owed based on the progressive tax system in the United States.
Since Sarina's income is within the second bracket ($11,001-$44,725), her income will be taxed at different rates for different portions of her income.
First, we subtract a single filer's standard deduction to determine her taxable income. Let's assume the current standard deduction is similar to the $13,650 mentioned.
Calculate taxable income:
Total Income: $42,000
Standard Deduction: $13,650
Taxable Income: $42,000 - $13,650 = $28,350
Now, we split the taxable income according to the tax brackets:
First $11,000 are taxed at 10%: $1,100
Next $17,350 ($28,350 - $11,000), taxed at 12%: $2,082
Total tax owed = $1,100 + $2,082 = $3,182.
The complete question is:
Sarina made $42,000 in the calendar year. How much does she owe in federal taxes?
Rate : 10% , 12% , 22% , 24% , 32% , 35% 37%
Single : Up to $11.000 , $11,001-$44.725 , $44,726-$95,375 , $95,376-$182,100 , $182,101-$231.250 , $231.251-$578-125 , $578-126 or more , standard deviation: $13,650
Married Filing Jointly : Up to $22.000 , $22-001-$89,450 , $89-451-$192,750 , $192,751-$364,200 , $364,201-$462,500 , $462,501-$693,750 , $6933.751 or more , standard Deduction: $27,700
The sum of two consecutive numbers is 501. What are the two numbers.
Answer:
250 + 251= 501
A number to the 7th power divided by the same number to the 3rd power equals 256. What is the number?
Answer:
4
Step-by-step explanation:
7-3=4
then i just messed around with putting numbers to the 4th and got 4
The question asks for a number which, when raised to the 7th power and divided by the same number raised to the 3rd power, results in 256. By understanding the rules of exponents, we find that the number is 4 because 4^4 equals 256.
Explanation:To solve this problem, it's important to know that when you divide two numbers with the same base and different exponents, you subtract the exponents. So, a number to the 7th power divided by the same number to the 3rd power equals that number to the (7-3)th = 4th power.
Therefore, the question is asking for a number which to the 4th power equals 256. The fourth root of 256 is 4 because 4^4 equals 256. So the answer is 4.
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X^-x^4-5x^3+4x-4
Please I need help and please show the steps.
Answer:
1-5x^4x+3 +4x^4x+1 -4x^4x/ x^4x
Step-by-step explanation:
Find the steps in the app photomath it helps.
determine the 6th tern for the sequence: 4, 0.4
4 0 4 0 4 0 Answer is 0
Step-by-step explanation:
Mathaway
What is the algebric expression for
Multiply x by 3
Add 6
Raise to the second power
Answer:
[tex] {(3x + 6)}^{2} [/tex]
Jane has rolled a fair die 7 times and each time has gotten a 3. She says that the probability that she will get a 3 on the next roll is high (close to 1). Is she correct?
A.No, the probability of getting a 3 on a fair die does not change. It will always be
1 /6 no matter what she got on the previous roll
B.Yes, since she has gotten a 3 on the last 7 rolls, the probability of getting a 3 is higher on the next roll.
C.No, the probability of getting a 3 will be slightly higher than any other number but not close to 1
D.There is no way to tell until she rolls the die. You cannot accurately predict what she will get.
plzzzzzzzzzzzzzzzzz help marked brainlyest
Answer:
A.No, the probability of getting a 3 on a fair die does not change. It will always be
Step-by-step explanation:
Get a good grade!
If Johnny hits 51 baseballs that are thrown to him and he has 73 pitches thrown
to him, what is his efficiency?
Answer:
0.699 (=69.9%)
Step-by-step explanation:
Efficiency = total hits / total attempted
given total hits = 51 and total attempted = 73
Efficiency = 51/73 = 0.699 (=69.9%)
Tomorrow I have a math midterm at 11:45a.m. and it is 9:30 p.m. I am going over the material and I really don't know it. What should I do? ( I only have to be at school for the test so 2 hours)
Answer: don't be scared to ask your teacher for help.
Step-by-step explanation:
You should try the best you can with whatever you got. Start with what you know and build from that to study in areas you aren't familiar with. Given the time constraints, you won't be able to get everything; however, you should be able to learn a few things, which is better than nothing. For any specific math questions you have, make a new post and I'll come take a look (or another helper will be able to help).
i need to know the factors that will get me 10x squared - 25x equals 0
Answer:
10x² - 25x = 0 ⇔ 5x(2x-5) = 0
the factors are 5x and 2x-5
Lulu is taking a road trip to visit family. Her car has a 20-gallon gas tank and the car uses 12 gallons to travel 216 miles.
Which linear equation represents the number of gallons of gas, G, left in the tank after driving m miles?
A. G = 360 - 18m
B. G = 20 - 18m
c. G=20 - 1gm
D. G=360 - 16"
Answer:
The answer is G = 20 - m/18, but none of the answers given is correct.
Step-by-step explanation:
1. Let's review the information given to us to help Lulu to answer the question correctly:
Capacity of the gas tank of Lulu's car = 20 gallons
Lulu can travel 216 miles using 12 gallons
2. Which linear equation represents the number of gallons of gas, G, left in the tank after driving m miles?
G = number of gallons left in Lulu's car
m = Miles driven by Lulu
miles per gallon = 216/12 = 18 miles per gallon
Now, we can write the linear equation, this way:
G = Capacity of the gas tank of Lulu's car - miles driven/miles per gallon
Replacing with the values we know:
G = 20 - m/18
Let's assume Lulu drives 180 miles, using our linear equation, we have:
G = 20 - 180/18
G = 20 - 10 = 10 gallons left
Let's assume Lulu drives 54 miles, using our linear equation, we have
G = 20 - 54/18
G = 20 - 3 = 17 gallons left
trying to solve a exponential function question. Evaluate the function when t=5.
h(t) = 175(1028)t
Answer:
Step-by-step explanation:
a=175
r=2.8
A rectangular garage is 6 meters long and 5 meters wide. What is its area?
Answer:
30 meters
Step-by-step explanation:
You MUST multiply 5 and 6 to get 30 to find area you have to multiply length times width
Answer: 30 Meters
Step-by-step explanation: You find area by multiplying length by width. 6 times 5 is 30.
Andrew and Elena knew that after 28 days they would have 2^28 coins, but they wanted to find out how many coins that actually is Andrew wrote: 2^28=2×28=56. Elena said, " No, exponents mean repeated multiplication. It should be 28×28, which works out to be 784." Do you agree with either of them? Explain your reasoning.
Both Andrew and Elena are wrong. The actual value of 2^28 equals 268,435,456.
Step-by-step explanation:
Elena was right when she said exponents mean repeated multiplication but she accidentally calculated the value of 28^2 instead of 2^28. 2^28 means that the number 2 should be multiplied with itself for 28 times.
2^2 means 2 multiplied by 2 equals 4. 2^3 means 2 multiplied by 2 and then multiplied by 2 again which equals 8. Similarly, if you multiply 2 with itself 28 times you will get a value of 268,435,456 (two hundred and sixty-eight million, four hundred and thirty-five thousand, four hundred and fifty-six). So Andrew and Elena will have 268,435,456 coins after 28 days.
. $30 for 100 flyers or $65 for 250 flyers which is the better value
The second option of $65 for 250 flyers is the better value as it offers a lower cost per flyer.
Explanation:To determine which option is a better value, we need to calculate the cost per flyer for each option. For the first option of $30 for 100 flyers, the cost per flyer would be $0.30. For the second option of $65 for 250 flyers, the cost per flyer would be $0.26. Therefore, the second option is the better value as it offers a lower cost per flyer.
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What is -2+5(4+3r) equal to?
Answer:
18+3r
Step-by-step explanation:
-2+5(4+3r)
-2+5×4+3r
-2+20+3r
=18+3r