The variables x and y vary directly. Use the values to find the constant of proportionality, k . Then write an equation that relates x and y . Write any fractions in simplest form.
Answers
Answer:
k = 9/8
y = 9/8x
Step-by-step explanation:
45/40 = 9/8
To check:
40 * 9/8 = 45
Hope this helps!
Related Questions
Which inequality matches the graph?A)x > -2B)x < -2C)x = -2D)x ≤ -2
Answers
Answer:
the answer is D
Step-by-step explanation:
(BRAINLIEST IF CORRECT ANSWER) When you roast coffee, it loses 12% of its weight. How much fresh coffee do you need to order to get 14 2/25 lb of roasted coffee?
Answers
==========================================================
Explanation:
14 & 2/25 = 14 + 2/25 = 14 + 0.08 = 14.08
The mixed number 14 & 2/25 is the same as the decimal 14.08
The goal is to end up with 14.08 pounds of coffee.
Let x be the starting amount of coffee, in pounds. It will decrease to 14.08 pounds.
We start with x and decrease by 12%. So we are computing this expression
x - 12% of x = 1x - 0.12x = (1-0.12)x = 0.88x = 88% of x
We can see that if we lose 12%, we keep the remaining 88%
The 0.88x is the final weight.
Set 0.88x equal to the goal of 14.08 and solve for x.
0.88x = 14.08
x = (14.08)/(0.88)
x = 16
You'll need to start off with 16 pounds of coffee if you want to end up with 14.08 pounds after losing that 12%
-------------------
Check:
12% of 16 = 0.12*16 = 1.92
16 - 1.92 = 14.08
The answer is confirmed.
You need to order approximately 4.15 pounds of fresh coffee to get 14 2/25 pounds of roasted coffee after accounting for the 12% weight loss during roasting.
To find out how much fresh coffee you need to order to get 14 2/25 lb of roasted coffee, you'll need to account for the 12% weight loss during the roasting process.
Let's assume "x" represents the amount of fresh coffee (in pounds) you need to order. When this fresh coffee is roasted, it will lose 12% of its weight, leaving you with 100% - 12% = 88% of the original weight as roasted coffee.
Now, set up a proportion to find "x":
(88/100) * x = 14 2/25 lb
First, convert the mixed number 14 2/25 to an improper fraction. It becomes (364/25) lb.
Now, solve the equation for "x":
(88/100) * x = 364/25
To eliminate the fraction, you can multiply both sides of the equation by the reciprocal of (88/100), which is (100/88):
x = (364/25) * (100/88)
Now, simplify the expression:
x = 4.15 lb (rounded to two decimal places)
To learn more about proportion click on,
https://brainly.com/question/11874199
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how do -11.5 and -9.5 compare? choose the correct symbol.
a: <
b: >
c: =
Answers
Answer:
-11.5 < -9.5
Step-by-step explanation:
The larger the negative number, the less value. So when you compare -11.5 to -9.5, -9.5 is larger in value.
pls pls pls help help pls
Answers
Answer:
b or 7/9
Step-by-step explanation:
Answer:
The correct answer is B: 7/9
The model represents an equation. What value of x makes the equation true?
Answers
Answer:
B: 9/4
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
is 4x-6=1/2(-12+8x) one solution, no solution, or infinite? show work
Answers
=(1/2)(-12)+(1/2)(8x)
=-6+4x=4x-6
Ok done :>>>
HELPPPPPP MEEEEEEEEEEEEEEE PLSSSSSSSSSSSSS
Answers
Answer:
15/16 liters
Step-by-step explanation:
Let x=number of liters
Let y= container
Equation: 5/8 x = 2/3 c
Multiply both sides by 3/2 --- c = (5/8x) x (3/2)
The volume of the container is 15/16 liters
what is 3438 x 24 + 24 -24 divided by 4
Answers
Answer:
82512
Step-by-step explanation:
Answer:
(3,438 x 24) + 24 - (24 / 4)
82,512 + 24 - 6
82,536 - 6
= 82,530
Nadia is a stockbroker. earns 13% commission each week. Last week, sold $7,500 worth of stocks. How much did make last week in commission? If averages that same amount each week, how much did make in commission in 2011?
Answers
Answer:
It is 13% of 7,500.
13% of 7,500 is 975.
She made $975 worth of stocks last week.
The averages are the same amount each week.
In a year, she will make $50700 worth of stocks.
Answer:
50700
Step-by-step explanation:
7500*0.13= $975
multiply answer by 52 for weeks in one year.
975*52= $50700
last year, there were m pies baked for the bake sale. This year, there were 124 pies baked. Using m , write an expression for the total number of pies baked in the two years.
Answers
Answer:
→ Last year, there were m pies baked for the bake sale. This year, there were 215 pies baked. Using m , write an expression for the total number of pies baked in the two years.
Step-by-step explanation:
▶ Given :-
→ Last year, number of pies baked for bake sale = m.
→ This year, number of pies baked for bake sale = 215 .
▶ To find :-
→ The equation that represents the total number of pies baked for bake sale .
▶ Solution :-
→ Let the total number of pies baked for bake sale in two years be ‘x’ .
And, last year no. of pies baked = m [ given ] .
Therefore, the equation that represents the total number of pies baked for bake sale :-
→ x = m + 215 .
✔✔ Hence, it is solved ✅✅.
add or subtract
2+(−9)=
Answers
don't add links please.
Answers
Answer:
C I think or A but it's not b or d for sure but go for C
5*50=250+25= 275 while 5*50=250+30=280
Andre was trying to write 7⁷/ 7⁻³ with a single exponent and wrote 7⁷/ 7⁻³ = 7⁴⁻³ = 7¹ Explain to Andre what his mistake was and what the answer should be.
Answers
Sarah earns $10 each week for weeding the garden. If she saves all of
he money, how many weeks will it take her to save up $150?
(Draw a picture.)
(Write and solve an equation.)
1044-=15
!!!!!!HELLLP!??!! Meeeeeee????? PLEASEEEEE!!!!
Answers
Answer:
I say B?
I think im wrong so wait till someone else answers to.
maitenant on considère un carré ABCD dont l'aire est 6,25 dm au carré quelle est la mesure de son côté AB justifier.
questin suivante
a.quelle est l'aire en dm au carré de chacun des carré de depart
b.quelle est l'aire du nouveau carré obtenu.
question6.on veut maitenant trouver la longueure exacte du côté du carré reconstitué sachant que son aire est 2dm au carré on recherche donc un nombre positif x tel que x ✖ x =x au carré =2 en faisant differents essais proposer une valeur décimal pour x puis 7 que peut-ton conclure.
Answers
Help me please! correct answer gets brainliest!!
Answers
Answer:
T = 7
Step-by-step explanation:
Help plsss s/.$.$&/&/&:&
Answers
Answer: Yada bada cada
Step-by-step explanation:
Answer:
i cant see the problem
Step-by-step explanation:
During a sale, cameras were discounted 30% from their original price of $295.99. To the nearest cent, how much was the camera during the sale to the nearest cent?
Answers
The function below represents the monthly power consumption for a turbine blade manufacturing factory, where f(x) is the total power consumption, in kW, and x is the number of turbine blades produced.
The total power consumed to produce 15 turbines is ___ kW.
If 7,830 kW of power are consumed, then ___ turbines would be manufactured.
Answers
um can u provide the function pls
Dan took a train to his vacation spot. His train travels 75 miles each hour before making a stop. He left the station at 10:00. Phil is taking a vacation to the same spot, except his train travels 60 miles each hour before making a stop. Phil’s train left the station at 8:00. What time will they be in the same place?
A
12:00
B
1:00
C
5:00
D
6:00
Answers
Answer:
1:00
Step-by-step explanation:
Hope this helps you. Sorry if it's wrong.
Ellie got a new job; the pay structure is described below. How much money will Ellie make in a week where she works 25 hours and has $3500 in sales. Hourly Pay Rate $14.50. Comission 9%.
Answers
Answer:
$677.50
Step-by-step explanation:
you will need to find the amount she makes first which will be the 25 hours x the pay rate which is 14.50 that will be $362.50 then you will need to find the comission % which will be
3500=100
? = 9
cross multiply then you get $315 add the two answers together to get $677.50
help pls and letter d is 4 1/2
Answers
12 divided by 3/2 is the same as 12 x 3/2
Do this to 8 to get the answer B
Answer: The answer is B.
Step-by-step explanation:
To figure out, you must first turn the mixed fraction (3 1/2) into an improper fraction (7/2). We can do so by:
3 * 2 = 6
6 + 1 = 7 or 7/2
Next, you follow the rules of KCF: Keep, Change, Flip. Keep the first fraction, Change the sign to its inverse operation, and Flip the second fraction.
Our original equation is 7/2 /(divided by) 3/2 = ?
1. Keep the first fraction
7/2 / 3/2 = 7/2 / 32
2. Change the sign to its inverse operation
7/2 / 3/2 = 7/2 * 3/2
3. Flip the second fraction
7/2 * 3/2 = 7/2 * 2/3
Now, solve.
7/2 * 2/3
7 * 2 / 2 * 3 = 14/6
To make this a proper mixed number, first simplify.
14/6 / 2 = 7/3
Now, figure out how many wholes are in 7/3.
7/3 / 3 = 2 1/3
This is because 2 times 3 is six, and 7 minus 6 equals 1, or 1/3.
Therefore, the answer is 7/3 OR 2 1/3 OR B
Hellppp MEEEEEEE pleaseeeeee
Answers
Answer: 31 in.
Step-by-step explanation:
Because if you split 62 in half it’ll equal 31.
31+31=62
Answer:
29.5 inches
Step-by-step explanation:
Eva is 1.5 inches shorter than half of Maria's height, so to determine Eva's height, we would subtract 1.5 from 31, half of Maria's height. Our difference is 29.5. Eva is 29.5 inches tall.
(this was edited because I'm apparently blind)
Helene spends 15% of her budget on transportation expenses. Enter this percent as a decimal and as a fraction in simplest form.
15% written as a decimal is ______ and written as a fraction is ________
Answers
Answer: 0.15 for decimal and 3/20 for fraction
I hope this helps!
please tell me if I got something wrong
Given F(x) =3x+2 and g(x) = 2x2 , find the following composite functions:
a. (g*f)(3)
b. (f*g)(x)
Answers
Answer:
b. (f*g)(x)
Step-by-step explanation:
Set up the composite result function.
g ( f ( x ) )
Evaluate
g (f ( x ) )
by substituting in the value of
f into g . g ( 2 x 2 + 3 ) =3 ( 2 x 2 + 3 ) − 2
Simplify each term.
g ( 2 x 2 + 3 ) = 6 x 2 +9 − 2
Subtract
2 from 9 . g ( 2 x 2 + 3 ) = 6 x2+ 7
Answer: B
Step-by-step explanation:
Set up the composite result function.
g ( f ( x ) )
Evaluate
g (f ( x ) )
by substituting in the value of
f into g . g ( 2 x 2 + 3 ) =3 ( 2 x 2 + 3 ) − 2
Simplify each term.
g ( 2 x 2 + 3 ) = 6 x 2 +9 − 2
Subtract
2 from 9 . g ( 2 x 2 + 3 ) = 6 x2+ 7
Zack fills bird feeders with birdseed. Each bird feeder holds 2 1/2 cups of birdseed. Zack’s scoop holds 1/4 cup.
How many scoops will Zack use to fill both bird feeders?
1. How many cups of seed does Zack need to fill both bird feeders? Show how you found your answer
2. Write an expression for the number of scoops Zack needs to fill both feeders
3. Evaluate the expression to find the number of scoops Zack needs. Show your work
Answers
Answer:
1.) 5
2.) 0.25x=5
3.) 20
Step-by-step explanation:
1.) 2.5 (same as 2 1/2) x2 ("both bird feeders")= 5 cups needed
2.) 0.25x=5 x= amount of cups needed (0.25 is the same as 1/4)
3.) 5÷0.25= 20
Answer:
1.) 5
2.) 0.25x=5
3.) 20
Can someone help me out
Answers
This is because the graph goes by .25s
100 POINTS!! Michael is totaling the concession stand sales after a high school football game. He uses the expression shown to compute the total sales: 2(57 + 26) + 1(55 + 31) He is using the _________ property.
A. Commutative
B. Distributive
C. reflexive
D. transitive
Answers
Answer:
(b) distributive
Step-by-step explanation:
14HELPPPPPPPPPP MEe eee PLEASEEEEE
Answers
Answer:
111
Step-by-step explanation:
65 1/4 * 3 = 195 3/4
195 3/4 + 65 1/4 = 261
372-261=111
help me out and I will give brainliest of you are correct so plsssssssss help me out
Answers
Answer:
A!
Step-by-step explanation:
1. Multiply -1500 x 1 first
2. Then... add that number by 8350, and then you will get the same answer as shown in the elevation.
I hoped this helped! Have a good day :)