Answers
Answer:
a) 2/7 cup
b) k = 2/7
Step-by-step explanation:
2 cups of red paint (R) require 7 cups of white paint(W)
We can write this as a proportion equation:
R = k.W
where k is the constant of proportionality
Given R =2 when W = 7 we get
2 = k . 7
k = 2/7
Constant of proportionality = 2/7
So for 1 cup of White paint we will need
R = 2/7 x 1 = 2/7 cup
Related Questions
Find the value of y that makes the equation 3y = x + 2 true, when x = 1. A. 1 B. 3 C. 1/3 D. 2
Answers
Answer: A
Step-by-step explanation:
x=1 right? 1x3 =3 and yo need 3 to make it work so there you go
3(1)= x+2
3=x +2
1=x
At an office supply store, Samantha bought 5 notebooks and 2 pens for $9.
Jeffrey bought 3 notebooks and 2 pens for $6. Write a system of equations to represent this situation.
Answers
Answer: Let x be the cost of one notebook and y be the cost of one pen. Then we can write the following system of equations to represent the situation:
5x + 2y = 9
3x + 2y = 6
This system represents the fact that Samantha paid $9 for 5 notebooks and 2 pens, and Jeffrey paid $6 for 3 notebooks and 2 pens.
Step-by-step explanation:
Answer: hope this helps ♡
5x + 2x = 9
3x + 2x = 6
Step-by-step explanation:
x = cost of 1 item
Samantha → 5x + 2x = $9
Jeffrey → 3x + 2x = $6
5x + 2x = 9
3x + 2x = 6
Evaluate. (1/4)−2^−(50^⋅2)⋅1−1^ I need help with this one. These are number properties
Answers
Using mathematical operators and PEDMAS, the value of the expression is 14
What is the value of the expressionEvaluating an expression is the process of finding its value by replacing the variables in the expression with their respective values and applying the rules of arithmetic. For example, given the expression "2 + 3", evaluating it would result in the value "5".
There are many types of expressions, including arithmetic expressions, which involve numbers and mathematical operators such as +, -, *, and /. There are also expressions involving variables, where the value of the expression depends on the value assigned to the variables.
In the given problem, the expression is;
(1/4)⁻² - [5⁰ * 2] * 1⁻¹
Applying mathematical operators through PEDMAS;
16 - [1 * 2] * 1 = 14
Learn more on evaluating an expression here;
https://brainly.com/question/4344214
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NEED HELP ASAP
Write an equation for this table. No spaces!
Answers
Answer:
for one shirt would be y=1.50x+1
Step-by-step explanation:
hope this helps!
If you multiply 2 times $2.00, you get $4.00. If you add $2.00 and $2.00 you get $4.00. If you multiply 3 times $1.50, you get $4.50. If you add $3.00 to $1.50 you also get $4.50. If you multiply 5 times $1.25 you get $6.25. If you add $5.00 to $1.25 you also get $6.25. Six times what amount of money would give the same amount as $6.00 added to that amount?
Answers
Answer:
1.00
Step-by-step explanation:
[tex]1.00 \times 6[/tex]
1.00x6 = $6.00
If you invest 360 dollars and your annual interest is 54$ what is the interest rate?
Answers
Answer:
0.15
Step-by-step explanation:
[tex]54 \div 360[/tex]
equals 0.15
Answer:
I think it's $554.40
Step-by-step explanation:
A sculpture is made of solid brass in the shape of a cone. The sculpture is 90 inches tall, and its base has a diameter of 12 inches. If brass costs $0.55 per cubic inch, how much did the brass for the sculpture cost?
use 3.14 for pi, and do not round your answer.
Answers
Answer:
Im Not completely sure
Step-by-step explanation:
90
12
=
0.55
i
Define the proportion formula:
If 2 proportions are equal to each other, then we can cross multiply to get:
Numerator 1
Denominator 1
=
Numerator 2
Denominator 2
Numerator 1 * Denominator 2 = Denominator 1 * Numerator 2
Solving for Denominator 2 we get:
Denominator 2 = Denominator 1 * Numerator 2
Numerator 1
Evaluating and simplfying using your input values we get:
i = 12 * 0.55
90
i = 6.6
90
i = 0.073333333333333
Answer:pp
Step-by-step explanation:
pp
In an experiment, Mary will flip a coin 9 times. Will the relative frequency of her coin landing on heads be equal to the probability the coin will land on heads? How do you know?
Answers
yes because, it’s a 50-50 either way so it will be the same, unless your counting the fact whatever side faces up when you flip it is a tiny bit more likely (I’ve tried it before and it’s true! Whatever side is facing upwards is more likely!) that doesn’t count in math terms though.
please answer this!
Answers
$27-----------------------
Answer:
$27
Step-by-step explanation:
Let 'x' represent the amount of money that Tom began with.
(1/3)x + (1/3)(x - (x/3)) + 12 = x
x = $27
Tom started with $27.
If a women making $25 an hour gets a 10% raise, how much will she now make in an 8-hour work day?
Answers
Answer:
$220
Step-by-step explanation:
She gets $220 in an 8 hour work day.
Help! Please! I really need help with this! •ω•
Answers
Answer:
C
Step-by-step explanation:
11 turtles out of 82 turtles are tagged, how many turtles would there be if 53 turtles were tagged?
Answers
Answer: Wouldnt it be 82 since the number of turtles doesn't change?
PLEASE ANSWER I WILL GIVE BRAINLIEST TO THE BEST ANSWER
Answers
Answer:a+8
Step-by-step explanation:
I think it’s a+8 because since the difference between the 2 numbers is 8 to get the other number you have to add 8 to a.
Answer: hope this helps ♡
a + 8 = x
Step-by-step explanation:
The lesser number = a
The greater number = x
The difference = 8
Expression:
a + 8 = x
(Eg: a=4 x=12 difference=8 expression=4+8=12)
pleaase help me, thank you! :)
Answers
⚽️brhrhrbdndndndnajsjejrjfnfndnwnenennfnf enjerndnxnneenrnfbcb jendnsndhdjs.
There are currently 6,210 fish in a lake. If the number of fish in the lake increased by 15 percent during the last year and 20 percent during the year before that, how many more fish are in the lake currently than in the last two years ago?
Answers
I’m pretty sure the answer should be 1,710 if not i’m sorry
Answer:
1710 fish
Step-by-step explanation:
Let the number of fish in the lake last year be 'x'
The equation becomes-
x + 15x/100=6210 (This is because 15% of x is added in x to become
6210... hope you understand)
x + 15x/100 = 6210
115x/100 = 6210
23x/20 = 6210
x = 6210 * 20/23
x = 270 * 20
x = 5400
Therefore- The number of fish last year = 5400
Now, let the number of fish in the lake 2 years ago be 'y'
The equation becomes-
y + 20y/100 = 5400 (Same logic as last time)
y + 20y/100 = 5400
120y/100 = 5400
24y/20 = 5400
6y/5 = 5400
y = 5400 * 5/6
y = 900 * 5
y = 4500
Therefore- Fish in the lake two years ago = 4500 fish
Difference between current and two years ago = 6210-4500
= 1710 fish
Hope you understood the answer and I hope it helps you :)
Write an equivalent expression for 1/4 (8x + 32) - 7x - 14
Answers
Answer:
-(5 x + 6)
-5 x - 6
Step-by-step explanation:
You could choose one of those. While I was simplifying I got both of those. Let me know if both are correct or only one of them.
= 1/4 . 8 (x + 4 ) - 7x - 14
= 2 ( x+ 4) - 7x - 14
= 2x + 8 - 7x - 14
= ( 2x - 7x) + ( 8 - 14 )
= -5x - 6 or - ( 5x + 6)
When rolling a fair, eight-sided number cube, determine P(number greater than 6).
0.25
0.50
0.66
0.75
Answers
0.75
Step-by-step explanation:
The most appropriate choice for probability of an event will be given by-
Probability of getting a number greater than 2 on a 8 sided die is 0.75
What is probability of an event?
Probability of an event gives the information about how likely an event is going to happen.
Probability is calculated by number of favourable outcomes divided by total number of outcomes.
Probability is always greater than or equal to zero and less than or equal to 1
Probability of unsure event is 0 and probability of sure event is 1.
Calculation
Here,
Favorable outcomes (Numbers greater than 2 on a eight - sided die) = {3, 4, 5, 6, 7, 8}
Number of favourable outcomes in rolling a 8 sided die = 6
Total number of outcomes in rolling a 8 sided die = 8
Probability of getting a number greater than 2 on a 8 sided die =
= 0.75
learn more about probability of an event, refer to the link:
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Answer: it’s 0.75 there right
Step-by-step explanation:
Tom's brother saw an advertisement for a special at Muscle Fitness. Membership is $15
monthly, with a mandatory additional $100 charge for equipment maintenance.
Tom saw on television that Platinum Gym was having a grand opening in a few months.
Tom is considering a membership at Platinum Gym. Platinum Gym charges a one-time
registration fee of $60, and membership is $20 a month.
Tom's brother tells him that the Muscle fitness deal is better than the one offered by
Platinum Gym. Is he correct?
(a) Write an expression to represent the membership cost of Muscle Fitness for x
months.
(b) Write an expression to represent the membership cost of Platinum Gym for x
months.
(b) At what month will both memberships cost the same overall? Show your work. (2
Answers
Answer:
80 - 20 = $60 for reservation and 15 + 20 every month 20 x + 60 + equal muscle fitness
Tom Brady was wrong the cost of line cost the same amount Platinum cost $20 a month and $60 for reservations as the muscle fitness there's no better deal or Worse still cost the same amount
Answer: A) 80 - 20 = $60 for registration and 15 + 5 = $20 every month. 20x + 60= cost of Muscle Fitness B) Tom's brother is wrong. They cost the same amount. Platinum Gym cost's $20 a month and $60 for registration as well as Muscle Fitness. There is no better deal or worse deal. They cost the same amount.
70 faculty members at a school 14 of the faculty members are male. what percentage of the faculty is female? please show your work.
Answers
Answer: 80% of the faculty is female
Step-by-step explanation:
To find the percentage of the faculty that is female, we need to first determine how many faculty members are female.
Number of female faculty members = Total faculty members - Number of male faculty members
Number of female faculty members = 70 - 14
Number of female faculty members = 56
Now we can calculate the percentage of the faculty that is female by dividing the number of female faculty members by the total faculty members and multiplying by 100.
Percentage of female faculty members = (Number of female faculty members / Total faculty members) x 100
Percentage of female faculty members = (56 / 70) x 100
Percentage of female faculty members = 0.8 x 100
Percentage of female faculty members = 80%
Therefore, 80% of the faculty at this school is female.
Identify the terms, coefficients, and constants in the expression. 9h^2+8/9p+1
Answers
Answer: Coefficients 9 , Term 9h^2
Step-by-step explanation:
Which is equivalent to h⋅h⋅h⋅j⋅j⋅h⋅j?
h4⋅j3, 4h⋅3j, 7(h⋅j), or (h⋅j)7?
Answers
Answer: h^4*j^3
Step-by-step explanation:
h*h*h*h = h^4
j*j*j = j^3
thus answer is h^4 * j^3
Explanation:
There are 4 H’s being multiplied by themselves meaning it’s H to the 4th power then it’s the same process with J; J to the 3rd power. Finally you’d multiply H to the 4th and J to the 3rd. I hope this helps :)
Answer and explanation to the attached picture please! Thank you.
Answers
Anser: 24
Step-by-step explanation:
24
Answer:
94 square units
Step-by-step explanation:
3×5= 15
4×5= 20
4×3= 12
15+15+20+20+12+12= 94 square units
please answer this!
Answers
Answer:
it will be Saturday.
Step-by-step explanation:
Because when you go forward 3 days it is Saturday and 365 days ahead is another a year later.
Answer:
Step-by-step explanation:
Thursday Because there is one extra day in a year so thursday
A cylindrical water tank is 1/5 full. If three liters were added, the tank would be 1/4 full. How many liters does the tank hold when it is full?
Answers
Answer:
Step-by-step explanation:
Let F represent a full tank:
1/5F + 3 =1/4F, solve for F
F = 60 Liters when it is full
Accokeek Daycare ordered new equipment for the near year, including some bicycles and tricycles. The manufacturer ships each bicycle and tricycle in its own box, however the all the wheels for each cycle are shipped in a separate box. There are 19 boxes of bicycles/tricycles and 45 wheels in total.
Answers
Answer:
If you want to know how many of each tricycle and bicycle there is, you
Step-by-step explanation:
3 6 9 12 15 18 21 24 27 30 33 36 39 42 45
2 4 6 8 10 12 14 16 18
So there might be 18 bikes and 27 tricycles or 12 bikes and 3 tricycles
The radius of the circle is labeled seventeen yards. Use 22/7 for Pi. What is the area covered by the sprinkler?
Answers
Answer:
Step-by-step explanation:
I know the answer
Answer:
correct me if im wrong i tried my best
Step-by-step explanation:
Circle area = π * r² = π * 289 [yd²] ≈ 1176665 [in²]π ≈ 3.14159265 ≈ 3.14d = r * 2 = 17 [yd] * 2 = 1224 [inch] Area = 907.9203
Several motorcyclists were pulled over by a police officer for speeding one evening. Each of the tickets that the officer gave was over $180. The cost of a speeding ticket includes an automatic fine of $75 as well as $7 for every mile per hour over the speed limit.
Fill in the blanks to model the cost of the speeding tickets. Use x to represent the number of miles per hour over the speed limit each motorcyclist was going.
The inequality
Select ...
Select ...
models the problem.
The solution to the inequality is
Select ...
Select ...
.
This means that each motorcyclist was going
Select ...
Select ...
miles per hour over the speed limit.
Answers
Answer:
x<15
Step-by-step explanation:
75+7x<180
subtract 75 from 180
7x<105
divide 105 by 7
x<15
Hope this helps!
Whats the volume of the pyrimad
Answers
Answer: Volume =1/3*B*H
Step-by-step explanation: Because you take 1/3 times it by the B and the H
PLEASE HELP ME ANSWER THIS
Answers
Explanation: In the chart, one pair of shoes cost $40. Each 10 days, 1/5 of the cost is subtracted, so basically after 5/5, the cost of one pair would be $8 (40/5)
8 times 4 equals $32, which means you can pay for 4 pairs of shoes
Hope this helps!
NEED HELP ASAP
Write an equation for the table. No spaces!
Answers
Answer: [tex]y=10x[/tex]
Explanation:
For every one across, it goes 10 up. So it should be 10x
So it should be =
[tex]y=10x[/tex]