Answer:
(0,3)
Step-by-step explanation:
Solving Simultaneously, 4(5x + 3y = 9)
-5(4x - 2y = -6)
then, 20x + 12y = 36
-20x + 10y = 30
adding the two equations we get,
22y=66, hence y= 3
then substituting y in one of the equations
5x + 3(3) = 9 hence x = 0
If q varies directly as r, and q=20 when r=5, find the constant of variation.
a.k=2
b.k=3
c.k=4
d.k=5
Answer:
c. k=4
Step-by-step explanation:
5 in 4 places is 20 4 is a constant variation
The value of constant of variation k is 4.
Since, q varies directly as r.
[tex]q=kr[/tex]
Where k is constant of variation.
Substitute.[tex]q=20,r=5[/tex] in above equation
[tex]k=\frac{20}{5} =4[/tex]
Thus, The value of constant of variation k is 4.
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What is the circumference of a circle with a diameter of 8 feet? Use 3.14 for
TT.
d = 8 ft
Answer:
25.12ft
Step-by-step explanation:
circumference = TT d
3.14 x 8 = 25.12 ft
.. ¿Cuál es la densidad de una sustancia, si 460 gr ocupa un volumen de 35 cm3?
- Determinar la presión ejercida por una fuerza de 12 N aplicada a una superficie de 1,5 m2
Answer:
fghdd rtttuyer rfggysset hhgfd ishrhr Keith ieuru
help I can’t do basic math skjsjdmdmx
Answer:
2/8 which simplifies to 0.111111
Step-by-step explanation:
what place value is 7 in 7,000.2
Answer:
thousands place
Step-by-step explanation:
Have a nice day
WILL MARK BRAINLIEST!!!
This is a continuation to the other question
Answer:
m=86 degrees
x=98 degrees
Step-by-step explanation:
1:
the angles of a triangle are 180
180-71-23=86
m=86
2:
the angles of a triangle are 180
180-52-30=98
x=98
hope this helps and is right!
Find the area of a square with the side lengths of (1/2x+2)
Answer: There are no like terms
Step-by-step explanation:
Solve this equation: b - 120 = 80
What is the value of b? (what is b)
Answer:
b=200
Step-by-step explanation:
Cancel -120 from both sides by adding 120 to the other side:
b=80+120
b=200
Answer:
b= 200
Hope it helps, if not, I'm so sorry.
The sales tax in a major city is 7%. Find the cost, including the tax charged on a purchase of $200.
Answer:
$214
Step-by-step explanation:
200*0.07 = 14, 200 + 14 = 214
Can someone please help
Answer:
each hamburger costs $3.50
Step-by-step explanation:
he spent $13 in total and bought one hot dog for $2.50 and 3 hamburgers but we don't know the price of one hamburger so we could represent it by the equaton,
2.50 + 3h = 13 now solve for x
-2.50 2.50
3h = 10.50
h=3.50
check:
2.50+3(3.50)=13
2.50+10.50=13
13=13
It is the end of the semester, and the clubs at school
are recording their profits. The Science Club started out
with $20 and has increased its balance by an average
of $10 per week. The Math Club has saved $5 per
week after starting out with $50 at the beginning of the
semester.
al. Choose the equation below which represents the
balance the science club has. Let x represent the
number of weeks and y represent the balance of the
science club's account
y= 20 + 50x
y= 20 + 10x
y= 10 + 20x
y= 10 + 10x
y=50 + 5x
Y=5 + 10x
Answer:
y=20 + 10x
Step-by-step explanation:
Y=balance
the science cub started with 20 dollars, the first number. They gained 10 dollars a week, x, so the answer would be b.
Answer this please I’m not sure of the answer
Answer:
50
Step-by-step explanation:
All angles in a triangle add to 180 so C would be 65 and we just do 180-65-65 and we get 50.
Monica deposits $100 into a savings account that pays a simple interest rate of 4.5%, Paul
deposits $200 into a savings account that pays a simple interest rate of 3.2%. Monica says that
she will earn more interest in 1 year because her interest rate is higher. Is she correct? Justify your
response.
Answer:
yes she is correct
Step-by-step explanation:
because in 1 year it will go up 4.5%
true or false: 3x^2+5x^3=8x^3
Answer:
false
Step-by-step explanation:
which is the measure of
Answer:
The measure of what?
Step-by-step explanation:
post the question again and I will see if I can answer it
pls help im bad at math
Answer:
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
Step-by-step explanation:
Its SSS
Peter is saving to enroll in a roller-blading training program that costs $350.00.He already has $78 and will save $34 per week until he has enough money to join the program. At this rate, what is the least number of weeks it will take Henry to have $350.
Answer:
8 weeks
Step-by-step explanation:
A diver descends at a rate of 12 feet per minute for 11 minutes. Write and solve an expression to show what the divers ending depth would be.
Answer:
132ft
Step-by-step explanation:
Given data
We are told that a diver descends at 12 ft per minutes
The time taken is 11 minutes
From
Speed= distance/time
distance= speed*time
Substitute
distance= 12*11
distance=132ft
Hence the ending distance is 132ft
Riley invested $150 in an account paying an interest rate of 1 % compounded daily.
Blake invested $150 in an account paying an interest rate of 1% compounded
continuously. After 5 years, how much more money would Blake have in his account
than Riley, to the nearest dollar?
Answer:
$5
Step-by-step explanation:
HELP ASAP!!!! HELP HELP
Answer:
proportional
Step-by-step explanation:
Answer:
I'm 99% sure it's Non-Proportional
Step-by-step explanation:
If you were to convert each of them into fractions and simplified them, they wouldn't be equivalent.
A camera has a listed price of $819.99 before tax. If the sales tax rate is 6.75%, find the total cost of the camera with
sales tax included.
Round your answer to the nearest cent, as necessary.
Answer:
The answer is $875.34
Step-by-step explanation:
I got this answer from first finding what 6.75% of 819.99
819.99 * 6,75% = 55.349325
Next I rounded it.
55.349325 = 55.35
Lastly, I added 819.99 plus 55.35
819.99 + 55.35 = 875.34
Hope this helps! :)
kevin and jenny each use 12 cups of water to make a plaster. who will make more plaster?
Answer:
Students solve problems by comparing different ratios using two or more ratio tables. ... If you used ratios to compare, what do the ratios mean in the context of this ... Laredo makes his juice by combining three cups of water for every one cup of ... Milton's Juice. Water. JC. Total. Water. JC. Total. Water. JC. Total. 12. 2. 14. 15.
Step-by-step explanation:
l=$45, P=$600, t=2 years What is the annual interest rate?
Answer:
The interest rate required to accumulate simple interest of $ 45.00 from a principal of $600.00 over 2 years is 3.75% per year.
Step-by-step explanation:
Given
l = $45
P = $600
t = 2 years
To determine
What is the annual interest rate = r = ?
Using the Simple Interest Formula
I = Prt
r = I/Pt
substituting l = 45, P = 600 and t = 2 years
r = 45 / ( 600 × 2 )
= 0.0375
converting r decimal to a percentage = 0.0375 * 100 = 3.75% per year
Thus, the interest rate required to accumulate simple interest of $ 45.00 from a principal of $600.00 over 2 years is 3.75% per year.
Kathy went to the store to buy school clothes. She had a store credit for
$29.58. If she buys 4 shirts that each cost the same amount and spends a
total of $42.22 after the store credit was taken off, what was the price of
each shirt?
Answer:
$17.95
Step-by-step explanation:
could be wrong but add the store credit to the amount she had to pay and then divide it by the amount of shirts bought, 4. also some expensive asz shirts.
HELP!!! I will Mark Brainiest!!!!
Inga and Aileen are measuring the temperature of frozen hydrogen. Inga is using a thermometer that has increments of 0.25∘F, and she gets a measurement of 3.25∘F. Aileen is using a thermometer that has increments of 0.125∘F, and she gets a measurement of 3.375∘F.
Which thermometer has less uncertainty?
1. Aileen's thermometer, because it has smaller increments.
2. Neither, because the uncertainty in both thermometers is the same.
3. Inga's thermometer, because 3.25∘F is less than 3.375∘F.
4. Neither, because Inga and Aileen had different measurements.
Answer: AILEEN’S THERMOMETER, BECAUSE IT HAS SMALLER INCREMENTS
Step-by-step explanation:
I did the test and the attachment below is a screenshot of my test and I got 100%
Aileen's thermometer has less uncertainty because it has smaller increments. Option A is correct.
Given that,
Inga and Aileen are measuring the temperature of frozen hydrogen. Inga is using a thermometer that has increments of 0.25∘F, and she gets a measurement of 3.25∘F. Aileen is using a thermometer that has increments of 0.125∘F, and she gets a measurement of 3.375∘F.
All over the world, most things are in use as of common quantity, so people all over the world agree that they have to follow a common system of measurement and that the common system of measurement is called standard measurement.
Here,
Aileen's thermometer has a smaller increment than Inga's thermometer,
Because of the smaller increments, it has more chances to give precise measurements and less uncertainty.
Thus, Aileen's thermometer has less uncertainty because it has smaller increments. Option A is correct.
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After a 40% discount, the cost of a sofa is $471.00. What was the original cost of the sofa? NEED HELP ASAP
Answer: $659.40
Step-by-step explanation: You start with 471.00 X 0.4 which equals $188.40. So then you add $471.00 and $188.40 and you get $659.40!
The percentage is calculated by dividing the required value by the total value and multiplying it by 100.
80% = $471
100% = $588.75
The original cost of the sofa is $588.75
What is a percentage?The percentage is calculated by dividing the required value by the total value and multiplying it by 100.
Example:
Required percentage value = a
total value = b
Percentage = a/b x 100
We have,
Original cost in percentage = 100% ____(1)
Cost after 40% discount = $471
This can be written as,
80% = $471 _____(2)
From (1) and (2) we get,
80% = 471
Multiply 100/80 on both sides,
100/80 x 80% = 100/80 x 471
100% = $588.75
Thus,
80% = $471
100% = $588.75
The original cost of the sofa is $588.75
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Paula is the student council member responsible for planning an outdoor dance. Plans include hiring a band and buying and serving dinner. She wants to keep the ticket price as low as possible to encourage student attendance while still covering the cost of the band and the food.
Question 1: Band A charged $600 to play for the evening and Band B changers $350 plus $1.25 per student.
Write a system of equations to represent the cost of the two bands.
Answer:
Plans include hiring a band and buying and serving dinner. She wants to keep the ticket price as low as possible to encourage student attendance while still covering the cost of the band and the food. Question 1: Band A charged $700 to play for the evening and Band B changers $550 plus $1.50 per student.
Step-by-step explanation:
There are 15 plums and 9 apples in a fruit bowl. What is the ratio of apples to plums?
Answer:
5:3
Tell me if I'm correct
Simplify: 2(10) + 2(x - 4)
Answer:
2x+12
Step-by-step explanation:
Multiply the numbers
2*10+2(x-4)
Distribute
20+2x(x-4)
20+2x-8
Subtract the numbers
20+2x-8
12+2x
Rearrange terms
2x+12
Your parents are building a pool that is 7 ft wide and 12 ft long. They want to put a walkway around the pool that is x ft wide on all sides. Write a polynomial that represents the combined area of the pool and walkway. Answer needs to be in standard form and use x as your variable.
Answer:
25 /12*6 =12.5
Step-by-step explanation:
thats what i got