Answer:
$390 you divide 520 by 4 so 520/4=130 now we subtract 130 from 520, 520-130=390
Step-by-step explanation:
Solving this question requires basic arithmetic formula and fractions.
New weekly income = $390
Let's call the number of hours kim works weekly as "x"
If she reduces this number of hours by one-fourth and her current weekly income is $520, then it means the amount to be deducted is;
[tex]\frac{1}{4}[/tex] × $520 = $130
Thus, her new weekly income will be;
$520 - $130 = $390
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a triangle with vertices at a 20 -30 b 10 -15. and c 5 -20 has beem dilated with a center of dilation at the origin the image of b point b has coordinates 2 -3 what is the scale factor of the dilation
Answer:
1/5
Step-by-step explanation:
When the dilation is centered at the origin, the dilation factor is applied to each pre-image coordinate to get the image coordinate.
k(10, -15) = (2, -3)
k = 2/10 = -3/-15 = 1/5
The scale factor of the dilation is 1/5.
It is possible to approximate the outside temperature based on how fast crickets are chirping. Suppose on a 50 degree day, you measure 52 chirps in a minute, and on a 74 degree day, you measure 148 chirps in a minute.
Given the following formula, solve for a
I WILL GIVE BRAINLIST!!
Answer:
a=2s-b-c
Step-by-step explanation:
2s=a+b+c
a=2s-b-c
Answer:
2s-c-b =a
Step-by-step explanation:
s = ( a+b+c)/2
Multiply each side by 2
2s = ( a+b+c)/2 *2
2s = a+b+c
Subtract c from each side
2s -c = a+b+c-c
2s -c = a+b
Subtract b from each side
2s-c-b = a+b-b
2s-c-b =a
Can someone quickly help me solve this ?!
Answer: 8
Step-by-step explanation: if you count the angels and the sides then you'll get the answer 8..
help asap please 25 points
Answer:
a is 75.00 b is 12 meters above c is credit of 23.00
Step-by-step explanation:
I need help with number 8 and please explain
Answer:
No
The sides of the triangle do not satisfy the Pythagorean Theorem.
Step-by-step explanation:
If we are given the three sides to a triangle, and we are asked to find out if it is a right triangle, we will have to see if the sides of the triangle satisfies the Pythagorean Theorem. The Pythagorean Theorem is:
a² + b² = c²
where c is the hypotenuse and a and b are the other two sides.
So we can see from the image that 28 would be the length of the "hypotenuse" and 19 and 20 would be the lengths of the other two sides. Lets see if these values satisfy the Pythagorean Theorem:
19² + 20² = 28²
361 + 400 = 784
761 ≠ 784
So no, the triangle is not a right triangle because the sides does not satisfy the Pythagorean Theorem.
I hope you find my answer and explanation to be helpful. Happy studying.
Use the GCF and distributive property to find the expression that is equivalent of 48+56
WILL GIVE BRAINLIEST!! What is the y-intercept of a line that has a slope of 3 and passes through point (4, 8)?
Answer:
-4
Step-by-step explanation:
If we set up the equation with the known info, we get y=3x+b
We can then use the ordered pair to plug in, so 8=12+b
Now, simply solve for B, and you get -4
What is the justification for step 2 in the solution process?16-5x=1-4x; -5x=-4x-15; -x=-15
Answer:
Addition Property Of Equality
Step-by-step explanation:
The variable was isolated on the left side of the equation by adding 4x to both sides. This is justified by the addition property of equality.
Step 1: -5x = -4x -15
Step 2: -x = -15
Answer:
the addition property of equality
Step-by-step explanation:
The variable was isolated on the left side of the equation by adding 4x to both sides. This is justified by the addition property of equality.
800,000 rounded to the nearest hundred thousand what is the largest and smallest number
Answer:
Largest: 800,499
Smallest: 799,500
The required largest number is 8,00, 499 and the smallest number is 7,99, 500.
Given that,
800,000 rounded to the nearest hundred thousand.
To determined the largest and smallest number.
What is rounding of values?
The rounding of values is superseding a number with an inexact value that has a more ephemeral, more uncomplicated, or more direct representation.
Here,
Any number range -500 and + 499 to 8,00,000 will be the smallest and largest number that could be rounded to 8,00,000.
smallest number = 8,00,000 - 500 = 7, 99, 500
largest number = 8,00,000 + 499 = 8,00,499
Thus, the required largest number is 8,00, 499 and the smallest number is 7,99, 500.
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1 − 3 10 . Write the answer as a fraction
Answer:
7/10
Step-by-step explanation:
It's correct on Edgenuit y
The fraction equivalent to 1 - 3/10 is 7/10.
What is a fraction?A fraction is written in the form of p/q, where q ≠ 0.
Fractions are of two types they are proper fractions in which the numerator is smaller than the denominator and improper fractions where the numerator is greater than the denominator.
Given, An integer 1 is subtracted from a fraction 3/10.
Let, 1 = 1/1.
Therefore,
1 - 3/10.
= 1/1 - 3/10.
Now, LCM of 1 and 10 is 10.
(10 - 3)/10.
= 7/10.
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Factor the following expression completely. 4b^8-61b^4+225
Please help!!!! I'll give you 15 points!!
Step-by-step explanation:
the answer is C
2/5(2x+3)
I hope it helps
Functions and their Properties
Practice
Need help
Answer:
[tex]g(n-7)=\frac{n^{2}-14n+43}{7n-49}[/tex] → (a)
Step-by-step explanation:
We need to evaluate g(n - 7), where
[tex]g(x)=\frac{x^{2}-7}{7x}[/tex]Replace x by (n - 7) to evaluate it
∵ x = (n - 7)
∴ [tex]g(n-7)=\frac{(n-7)^{2}-6}{7(n-7)}[/tex]
→ Let us find (n - 7)²
∵ (n - 7)² = (n - 7)(n - 7) = (n)(n) + (n)(-7) + (-7)(n) + (-7)(-7)
∴ (n - 7)² = n² + (-7n) + (-7n) + 49 = n² + -14n + 49
∴ (n - 7)² = n² - 14n + 49
→ Find 7(n - 7)
∵ 7(n - 7) = 7(n) - 7(7)
∴ 7(n - 7) = 7n - 49
→ Now let us write then in the form above
∵ [tex]g(n-7)=\frac{n^{2}-14n+49-6}{7n-49}[/tex]
→ Add the like terms in the numerator
∴ [tex]g(n-7)=\frac{n^{2}-14n+43}{7n-49}[/tex]
The correct answer is (a)
PLS HELP ME IM BEING TIMED AND I HAVE 20 MINS TO TURN IN.
Answer:
2.a) 3 ( x - 1 ) = 5x - 6 (Because the sides of a square are always equal)
b) 3 ( x - 1 ) = 5x - 6
=> 3x - 3 = 5x - 6
=> 3x - 5x = -6 + 3 (Law of transposition)
=> -2x = -3
=> -x = -3/2
=> -x = -1.5
=> x = 1.5 (By cancelling out the negative sign from both the sides)
c) 3(x-1) = 3 (1.5 - 1)
=> 3 (0.5)
=> 3 * 0.5 = 1.5
Both the angles are 1.5 because they are equal
If my answer helped, please mark me as the brainliest!!
Thank You!
What is 7/9 x 21/10=
Answer:
1 19/30
Step-by-step explanation:
Just multiply and cross simplify
7/9 x 21/10
9 and 21 can be simplified to 3/7
7/3 x 7/10
Multiply from left to right
49/30
1 19/30
Answer: 1.63333333333
7/9 = 0.77777777777
(7/9) * 21 = 16.3333333333
((7/9) * 21)/10 = 1.63333333333
Please ill give brainliest and all my points just help me
ANSWER:
Minivan
EXPLANATION:
To determine the unit rate, take the miles and divide by the gallons
Truck:
120 miles / 8 gallons = 15 miles per gallon
Minivan:
180 miles /10 gallons = 18 miles per gallon
The minivan travels more miles per gallon
ANSWER:
Adam
EXPLANATION:
To determine the unit rate, take the charge and divide by the acres
Joshua:
$40 / 2 acres = $20 per acre
Adam:
$30 / 1.2 acres = $25 per acre
Adam charges more per acre
ANSWER:
Ellen
EXPLANATION:
To determine the unit rate, take the seconds and divide by the meters.
Ellen:
28 seconds / 200 meters = .14 seconds per meter
Lindsay:
60 seconds / 400 meters = .15 seconds
Ellen runs faster than Lindsay
A local bakery sells 18 bagels for $12.99. How many bagels can be purchased for $20? Round down to the nearest whole bagel.
Jerrod’s family drove 1,778 miles from Denver, Colorado, to New York City. They averaged 61.7 miles per hour on the trip. Which is the best estimate of the number of hours the family drove?
Given parameters:
Distance traveled = 1778miles
Average speed = 61.7 miles per hour
Unknown:
Time taken for the travel = ?
Speed is a physical quantity. It is the rate of change of distance with time.
It can be mathematically expressed as;
Speed = [tex]\frac{distance}{time taken}[/tex]
The unknown here is the time taken;
Substitute the parameters and solve for it;
61.7 = [tex]\frac{1778}{ time taken}[/tex]
time taken = [tex]\frac{1778}{61.7}[/tex] = 28.8hrs
The time taken is 28.8hrs
Answer:
the answer for this would be 30 hours.
Step-by-step explanation:
please answer number 9 :((((
okay so the 2x+6 is the red line
x<12 is the purple region
-3/4x+8 is the blue line
x is greater than or equal to 12 is black
the second picture shows when 8 ≤ x ≤ 16
in the second photo it shows the region where 8≤x≤12 which is the red shaded part
HELP NEEDED ASAP MATHS PLEASE!!!
What is the constant of proportionality?
Time (min)
1
2
3
Number of Texts
3
6.
9
12
Answer:
y=x3
Step-by-step explanation:
x=time minutes
y= texts
i hope i'm correct
plz mark brainliest
ASAP!!! Tell me the lengh and width and i will give you branilest!
Answer:
The length of the drawing is 10 centimeters and the width is 6 centimeters.
Step-by-step explanation:
500/50= 10 1*10=10 so the length is 10
300/50=6 1*6=6 so the width is 6.
Find a degree 3 polynomial with real coefficients having zeros 1 and 2-2i and a lead coefficient of 1. Write P in expanded form. Be sure to write the full equation, including P(x)=.
Answer:
Step-by-step explanation:
complex roots always occur in pairs.
roots are 1,2-2i,2+2i
P(x)=a(x-a)(x-b)(x-c)
P(x)=1(x-1)[x-(2-2i)][x-(2+2i)]
=1(x-1)[(x-2)+2i][(x-2)-2i]
=(x-1)[(x-2)²-(2i)²]
=(x-1)[(x-2)²-4i²]
=(x-1)[x²-4x+4-4(-1)]
=(x-1)[x²-4x+4+4]
=(x-1)[x²-4x+8]
=x³-4x²+8x-x²+4x-8
=x³-5x²+12x-8
Could someone please help with this math problem??!
How could you informally prove to your friend that you have been working with a trainer at the gym.
You can show your gym bill.
You can show your membership card.
You can demonstrate some of the exercises that your trainer taught you.
You can show your before and after charts for your muscle mass.
Answer:
You can demonstrate some of the exercises that your trainer taught you
Step-by-step explanation:
The rest of the options are too formal.
You can demonstrate some of the exercises that your trainer taught you. The correct option is C.
what is convincing communication?Persuasive communications include a variety of attributes designed to increase persuasions, such as an appealing source, a message with convincing arguments, or efforts to make the topic seem personally relevant to the audience.
You can prove to your friend that you have been working with a trainer at the gym by demonstrating some of the exercises that your trainer taught you.
Therefore, you can demonstrate some of the exercises taught to you by your trainer. C is the correct answer.
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3 digit number that is divisible by 3 and 5
The answer is 135
1+3+5=9(9 is a multiple of 3. To know if something is divisble by 3, you must add it and if it is a multipe of 3 it is divisble of 30
135 end with 5( If a number ends with 0 or 5 it is divible by 5)
Hope my explanation helps!
do you agree that the equation (x-4)²=9 can be solved both by factoring and extracting square roots?
Given parameters:
Equation:
(x-4)²=9
Problem, solve the equation by factoring and extracting the root
Solution:
Given equation:
(x-4)²=9
subtract 9 from both sides to equate to zero;
(x-4)² - 9 = 0
(x -4)² - 3² = 0
Now, this is similar to the concept of difference of two squares;
x² - y² = (x + y)(x-y)
Here x = x-4 and y = -3
So input and solve;
(x - 4 -3)(x - 4 -(-3)) = 0
(x - 7)(x - 4+3) = 0
(x -7)(x -1) = 0
S0,
x - 7 = 0 or x-1 = 0
x = 7 or 1
If we extract the square roots;
(x-4)² = 9
√(x-4)² = √9
x - 4 = 3
x = 4 + 3 = 7; this is not the only solution to the problem
So we cannot solve it by extracting the square root.
The solutions by checking are incorrect for the second solution, hence the expression cannot be solved by extracting the square root. The equation can only be solved by factoring
Given the expression;
(x-4)²=9
This expression can be solved by factoring
Factoring the expression on the left hand side
(x-4)(x-4)=9
x²-4x-4x+16 = 9
x² - 8x + 16 - 9 = 0
x² - 8x + 7 = 0
x² -x - 7x + 7 = 0
x(x-1) -7(x-1) = 0
x-7 = 0 and x - 1 = 0
x = 7 and 1
This shows that the expression can be solved by factoring
The other way is by squaring both sides
(√x-4)² = ±√9
x - 4 =±√9
x = -9+4 and x = 9 + 4
x = -5 and 13
Since the solutions by checking are incorrect for the second solution, hence the expression cannot be solved by extracting the square root
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Rapid Rental Car charges a $40 rental fee, $15 for gas, and $0.25 per mile driven. For the same car, Capital Cars charges $45 for rental and gas, and $0.35 per mile. For how many miles is the rental cost at both companies the same?
1415236 IDC DCCDSDSDCSDCSDC
It was Robin's birthday and she knew she was going to have a good day. She was driving to work, and when she turned on the radio, her favorite song was playing. Besides, the traffic light at the main intersection she crossed to get to work was green when she arrived, something that seemed to happen less than once a week. When she arrived at work, rather than having to search as she usually did, she found an empty parking space right in front of the building. Identify three random circumstances in the story, and give the possible outcomes for each of them. (Select all that apply.)
Answer:
1.Random circumstance: Color of traffic light when Robin approaches the main intersection. Possible outcomes: Traffic light is green when Robin arrives, or Traffic light is not green when Robin arrives.
2.Random circumstance: Song on the radio when first turned on. Possible outcomes: Robin's favorite song is playing, or Robin's favorite song is not playing.
4.Random circumstance: Nearest available parking space. Possible outcomes: Robin finds an empty parking space in front of the building, or Robin does not find an empty parking space in front of the building.
Step-by-step explanation:
A random circumstance is one whose outcome cannot be predicted because we either do not have the full details of the matter or it has not been confirmed yet by a reliable source. In the short description of events provided above;
1.The color of the traffic light is unpredictable because it is not under the control of the drivers but is automated.
2. Robin's favorite song playing on the radio is a random circumstance because she has no control over what song is played. So, she might as well have tuned in and it would be her least favorite song playing.
3. Robin driving into the office and finding the parking space empty is a random circumstance because it is not predictable. She might have come in and found the entire space filled.
