Answer:
7.5
Step-by-step explanation:
To make orange-shaded paint if we use 9 quarts of red paint we need 7.5 quarts of yellow paint.
What are ratio and proportion?A ratio is a comparison between two similar quantities in simplest form.
Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
Given to make an orange shade paint 5 quarts of yellow paint and 6 quarts of red paint are needed.
Assuming the no. of yellow paint needed is x when 9 quarts of red paint is used.
As they are in direct proportion we can write
5 : 6 : : x : 9.
5/6 = x/9.
6x = 45.
x = 7.5.
learn more about proportion here :
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proportional constant
Answer:
The value of the proportionality constant (y to x) is: 3/10
Step-by-step explanation:
We know the slope of any graph where 'y' varies directly with 'x' gives us the constant of proportionality 'k'.
i.e. y = kx
and k = y/x
Given the points
(100, 30)(300, 90)(500, 150)We know that the proportionality constant (y to x) is:
k = y/x
For the point (100, 30)
k = 30/100=3/10
For the point (300, 90)
k = 90/300=3/10
For the point (500, 150)
k = 150/500=3/10
As the value of proportionality constant (y to x) is the same.
i.e. k = 3/10
Thus, the value of the proportionality constant (y to x) is: 3/10
The ratio of money in Terry's bank account to Faye's bank account was 3:7. Terry then put £220 in his account and Faye withdrew £300 from her account. They now had the same amount in their accounts. How much did Terry initially have?
Answer:
Terry initially had £390
Step-by-step explanation:
The ratio of the original amount is 3:7
Let the original amount Terry has be t and the original amount Faye has be f
3/7 = t/f
or simply 3f = 7t ••••••(i)
Terry putting 220 means he now has
t + 220
Faye withdrew 300
He now has f-300
These values are equal
t + 220 = f-300
f = t+220+300
f = t + 520 ••••••(ii)
Put ii into i
3(t + 520) = 7t
3t + 1560 = 7t
7t-3t = 1560
4t = 1560
t = 1560/4
t = 390
I WILL GIVE BRAINLIEST!!!!
The following figures give the distribution of land (in acres) for a county containing 67,000 acres. Identify each category on the circle graph. Land Use Acres Relative Frequency Forest 10,050 0.15 Farm 6700 0.10 Urban 50,250 0.75 A circle graph titled Land Use. Blue is about 75 percent; green, 15 percent; red, 10 percent. a. Farm - Blue - 75% Forest -Green - 15% Urban - Red - 10% c. Forest - Blue - 75% Urban - Green - 15% Farm - Red - 10% b. Urban - Blue - 75% Forest - Green - 15% Farm - Red - 10% d. Forest - Blue - 75% Farm - Green - 15% Urban - Red - 10% Please select the best answer from the choices provided A B C D
Answer:
c
Step-by-step explanation:
its c on edge
Lillian has nickels, dimes, and quarters in her coin purse. She has 3 fewer dimes than quarters, and 3 times as many nickels as dimes. If she has a total of 33 coins, which of these is either the number of nickels, the number of dimes, or the number of quarters she has?
Answer:
18 nickels, 6 dimes, and 9 quarters
Step-by-step explanation:
nickels dimes and quarters
x y and z
x+y+z=33
y+3=z
3y=x
3y+y+y+3=33
5y+3=33
5y=30
y=6
z=9
x=18
Hope this helps plz hit the crown :D
The average depth of the Artic Ocean is 3.953 x 10^5 feet while the average depth of the Atlantic Ocean is 1.2851 x 10^4 feet. Approximately how many times more deep is the Atlantic Ocean that the Artic Ocean?
Answer:
Hence the artic depth is approximately 31 times deeper than atlantic
Step-by-step explanation:
Given the following;
Average depth of the Artic Ocean = 3.953 x 10^5 feet
Average depth of the Atlantic Ocean = 1.2851 x 10^4 feet.
Taking the ratio of both depth;
Ratio = Depth of Artic/Depth of Atlantic
Ratio = 3.953 x 10^5/1.2851 x 10^4
Ratio = 3.076 * 10^1
Ratio = 30.76
Depth of artic/depth of atlantic = 30.76
Depth of artic = 30.76 * depth of atlantic
Hence the artic depth is approximately 31 times deeper than atlantic
Who spent more of their allowed on pizza? 2/5 and 0.25
Answer:
2/5, because 2/5 is bigger than 0.25.
Step-by-step explanation:
Answer:
2/5 spent more.
Step-by-step explanation:
Well, 2/5 converted to fraction is 0.40 since 2÷5=0.4.
And 0.40 is more than 0.25.
So 2/5 spent more of their allowance.
Larry accumulated $3,000 in credit card debt. If the interest rate is 10% per year and he does not make any payments for 2 years, how much will he owe on this debt in 2 years for quarterly compounding? Round your answer to two decimal places.
Answer:
The amount will be "$3655.21".
Step-by-step explanation:
The given values are:
Principle,
P = $3000
Interest rate,
r = 10% i.e., 0.1
Number of times interest,
n = 4
Time,
t = 2 years
As we know,
⇒ [tex]A=P[1+\frac{r}{n} ]^{tn}[/tex]
On putting the values in the above formula, we get
⇒ [tex]=3000[1+\frac{0.1}{4} ]^{2\times 4}[/tex]
⇒ [tex]=3000[1+0.025]^8[/tex]
⇒ [tex]=3000\times 1.2184[/tex]
⇒ [tex]=3655.21[/tex] ($)
Please answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!
Answer:
It would be the 2nd one because 15+27=42 and that is less than 44 which should be more
Step-by-step explanation:
which function below has the greatest rate of change
Answer:
Step-by-step explanation:
The average rate of h =. By comparing the results, The function which has the greatest rate of change is h (x) So, the correct answer is option C) h (x) dome7w and 7 more users found this answer helpful. heart outlined.
Answer:
There's literally nothing there
Step-by-step explanation:
Plz help me answer this
Answer:
(1, 7)
x = 1
y = 7
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASEquality PropertiesAlgebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define systems
-5x + 2y = 9
y = 7x
Step 2: Solve for x
Substitution
Substitute in y: -5x + 2(7x) = 9Multiply: -5x + 14x = 9Combine like terms: 9x = 9Isolate x: x = 1Step 3: Solve for y
Define original equation: y = 7xSubstitute in x: y = 7(1)Multiply: y = 7Answer: x = 1 and y = 7
Step-by-step explanation:
first you substitude y for 7x
-5x + 2(7x) = 9
then you distribute
-5x + 14x = 9
then you combine like terms
9x = 9
then you divide both sides by 9
x = 1
then you subsitute the x value in the other equations
y = 7(1)
meaning y = 7
who was the president before obama
forgot to put photo but this is a repost HELP EMEBAHNDJFKG
Answer:
a
Step-by-step explanation:
what is the difference between 6204 and 5735
Answer:
469
Step-by-step explanation:
Difference = subtraction6,204 - 5,735 = 469I hope this helps!
the difference is 469
Melinda rents paddle boats down at the pier. She uses 5.5 feet of nylon rope to tie off each boat. She started with 80 feet of rope. After securing all the boats, she was left with more than 3 feet of rope. How many boats did Melinda tie off?
A.
at most 16
B.
at most 26
C.
less than 14
D.
more than 16
Answer:
the answer is B lol
Step-by-step explanation:
Heather rode her bike at a rate of 15 feet per second. Which graph best represents the relationship between the time in seconds Heather rode her bike, x, and the distance in feet she rode, y?
the graph that goes up the most
Answer: D
Step-by-step explanation:
Because it said she rode her bike 15 feet per second and per means 1 so for every second she rode 15 distance(feet)
I Hope This helped :)
graph y=4- 3/5x Help me out please
Answer: Y = (0,4)
X = 20/3
Step-by-step explanation:
Answer:
the points are at 0,4 and 6.6670 or 6,0
Step-by-step explanation:
Brainlist?
What are the slope and the y-intercept of the line shown in the graph?
A y-intercept - 2 and slope = -3
B. y-intercept = 2 and slope = 3
C intercept = 3 and slope = 2
D. intercept = -3 and slope = 2
Answer:
B. y-intercept = 2 and slope = 3
Step-by-step explanation:
Answer:
y intercept is 2 and slope is - 3
Step-by-step explanation:
A farmer is going to divide her 40 acre farm between two crops. Seed for crop A costs $15 per acre. Seed for crop B costs $30 per acre. The farmer can spend at most $900 on seed. If crop B brings in a profit of $50 per acre, and crop A brings in a profit of $110 per acre, how many acres of each crop should the farmer plant to maximize her profit? acres of crop A acres of crop B
Answer:
The answer is below
Step-by-step explanation:
Let x represent the number of acre on which crop A is farmed and B represent the number of acre crop B is farmed.
Therefore:
Since there is a total of 40 acre farm, hence:
x + y = 40 (1)
The farmer can spend at most $900 on seed, crop A seed cost $15 and crop B seed cost $50, hence:
15x + 50y ≤ 900 (2)
Her profit is given as:
Profit = 50x + 110y
From the geogebra plot, the point that maximizes the profit is at (60, 0)
Therefore the maximum profit = 50(60) + 110(0) = $3000
Use repeated subtraction to find 68 ÷ 5
Answer:
13 with 3 remaining
or 13.6
Step-by-step explanation:
Find the 55th term of the arithmetic sequence 2, -18,-38
Answer:
-1078
Step-by-step explanation:
n=0 is the first term in the sequence.
Every next term is 20 less then the previous term.
In Mathematics you can write this as follows:
f(n) = f(0) - (n-1)*20
f(n) = f(0) - {(n-1)*20}
f(n) = f(0) - {(20n) -20}
Attention: Please note that -1 * -20 = +20
f(n) = f(0) - 20n + 20
Check yourself, find f(2):
f(0) = 2
f(2) = 2 - 20*2 + 20
f(2) = 2 - 40 + 20
f(2) = 2 - 20
f(2) = -18
Check yourself once more, find f(3):
f(0) = 2
f(3) = 2 - 20*3 + 20
f(3) = 2 - 60 + 20
f(3) = 2 - 40
f(3) = -38
Now just find f(55):
f(55) = 2
f(55) = 2 - 20*55 + 20
f(55) = 2 - 1100 + 20
f(55) = 2 - 1080
f(55) = -1078
What does the slope represent in this situation
Answer:The slope represents ur mom
Step-by-step explanation:
(a+b)^3 what if it is was a plus
Answer:
Step-by-step explanation:
(a+b)³
a³+a²b+ab²+b³
Or
a³+b³+ab(a+b)
[tex](a + b)^{3} = {a}^{3} + 3{a}^{2} b + 3a {b}^{2} + {b}^{3} [/tex]
Also do not get mixed between
[tex] {a}^{3} + {b}^{3} [/tex]
They both are not the same.
[tex](a + b)^{3} ≠ {a}^{3} + {b}^{3} [/tex]
please help I'll give brainliest
Answer:
y + 1 = 4(x - 2)
y = 4x + 11
8x - 2y = 6
Step-by-step explanation:
Following equations are parallel to the graph 4x - y = 6, because their slopes are equal (4).
y + 1 = 4(x - 2)
y = 4x + 11
8x - 2y = 6
find a counter example for the following statement all triangles have one 90 degree angle
Select all the points that are on the graph of the line 2+4=20
(10, 0)
(1, 4)
(1, 2)
(0, 5)
(0, 10)
Answer:
A or B, it's either one of the two
1/2 ( x - 4 ) = 1/3 ( x + 2)
pls help me
Answer:
x=16
Step-by-step explanation:
1/2 ( x - 4 ) = 1/3 ( x + 2)
distribute both sides
1 /2 (x−4)= 1/ 3 (x+2)
( 1 /2 )(x) + ( 1/ 2 )(−4) =( 1 /3 ) (x)+( 1/3 )(2)(Distribute)
1 /2 x+−2= 1 /3 x+ 2 /3
1 /2 x+−2= 1 /3 x+ 2 /3
Step 2: Subtract 1/3x from both sides.
1/2x -2 -1/3 x
x= 1 /3 x + 2/3 − 1/ 3 x
1 /6 x−2= 2/ 3
Step 3: Add 2 to both sides.
1 /6 x −2+2= 2/ 3 +2
1 /6 x = 8 /3
Step 4: Multiply both sides by 6.
6*( 1/6 x) =6*( 8 /3 )
x=16
Please help asap needed for an overdue homework
What is the value of V81
[tex] \sqrt{81} [/tex]
WILL MARK BRAINLIEST
A box contains cards that are numbered from 1 to 100. What is the probability of randomly selecting a number that is less than 12?
O 1/100
O 1/12
O 11/100
O12/100
Answer:
C. 11/100
Step-by-step explanation:
Answer:
C. 11/100 explanation
I’m just lost on this on
Answer:
im sorry i cant really see that...
Step-by-step explanation: