when solving 20x+5y=40 for y
Answers
20x + -5y = 40
Solving
20x + -5y = 40
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '5y' to each side of the equation.
20x + -5y + 5y = 40 + 5y
Combine like terms: -5y + 5y = 0
20x + 0 = 40 + 5y
20x = 40 + 5y
Divide each side by '20'.
x = 2 + 0.25y
Simplifying
x = 2 + 0.25y
The answer is y=-4x+8. The paper shows how to solve the equation step by step.
Related Questions
Write the equation of a perpendicular bisector of the line segment having
endpoints A(-1, -3) and B(5,5).
Answers
The table below shows the number of miles Alan biked over time. Alan biked at a constant speed. Find the rate of change.
Answers
when multiplying or dividing by a negative coefficient, you must flip the sign.
•True
or
•False
Answers
Answer:
I think the answer is True!
Step-by-step explanation:
Hope this helps
Answer:
true
Step-by-step explanation:
a negative times a negative is a positive same with dividing a negative by a negative
a positive times a negative is also negative
Katie got a loan for $10,000. The interest rate is 5%. How much interest will she pay in one year?
Answers
Answer: 10,000 x 0.05 = $500
0.05 is equal to 5%
$500
Please brainlyist
What is The least common denominator of 11/12, 7/9, and 2/3
Answers
Answer:
261?
Step-by-step explanation:
LCD = 261
Equivalent Fractions with the LCD
11/29 = 99/261
7/9 = 203/261
2/3 = 174/261
find the value of x
a. 4
b. 9
c. 18
d. 14
Answers
The degree has to equal 180 so 180-140=40 40=(10)(4)
Answer:
4
Step-by-step explanation:
We know that this is a supplementary angle, which means the sum of two angles is 180 degrees.
The Equation would then be:
140+10x=180
All you need to do is solve for x.
140+10x=180
-140 -140 (Subtract 140 from both sides)
10x=40 (Divide by 10)
x=4
what is the standard form for 7x + 3x^2
Answers
Answer:
10x^3
Step-by-step explanation:
7+3=10
10x^2
easy
88=66+7-5x89 this question makes no scence
Answers
Answer:
x = -3/89
Step-by-step explanation:
Giving brainliest I only have 1 try please give out correct answer:)
Answers
A jar of peanut butter costs $6.95 plus sales tax. After sales tax, the jar of peanut butter costs $7.30.
What is the sales tax rate?
Answers
Answer:
tax rate is $0.35
Step-by-step explanation:
if you subtract the amount you paid without tax from the amount with tax you would get the estimated amount of money you paid for taxes
A cuántos metros equivalen 92 kilómetros?
Answers
Answer:
92000
Step-by-step explanation:
Answer:
92,000
Step-by-step explanation:
1 km=1000 m
So 1 km×92= 92 km
But 1000 m×92= 92,000 m
how do i solve this step by step??
Answers
Step by step:
Angle 2 and angle with 102 are corresponding angles meaning they are congruent
Hope this helps :D
Witch triangle o be an acute angle
Answers
Answer:
An acute triangle
Step-by-step explanation:
A triangle that is 47°
Help would be much appreciated
Answers
divide 49 ÷ 8 = and show your work
Answers
Answer:
6
Step-by-step explanation:
Place this digit in the quotient on top of the division symbol. Multiply the newest quotient digit (6) by the divisor 8 . Subtract 48 from 48 . The result of division of 48÷8 48 ÷ 8 is 6
The required, 49 divided by 8 gives 6 as the quotient and 1 as the remainder.
To divide 49 by 8, you can use long division to find the quotient.
Determine how many times the divisor (8) can fit into the new number (49). In this case, 8 goes into 49 six times. Subtract the result (48) from the number you brought down (49). 49 - 48 = 1. Write the result (1) below the line.
6
_______
8 | 49
- 48 (8 times 6)
______
1 (Remaining 1 after subtracting)
Therefore, 49 divided by 8 gives 6 as the quotient and 1 as the remainder.
Learn more about divide here:
https://brainly.com/question/31677548
#SPJ6
2) The sum of 5x and 2x is at least 14
A.
5x + 2x > 14
B.
5x + 2x < 14
C.
5x + 2x ≤ 14
D.
5x + 2x ≥ 14
Answers
Answer:
b
Step-by-step explanation:
if it is less than 14 then the big side of the arrow would be facing the 14
Answer:
Step-by-step explanation:
5x + 2x > 14= x>2
5x + 2x < 14= x<2
5x + 2x ≤ 14= x≤2
5x + 2x ≥ 14= x≥2
Elizabeth earned $150 a week
tutoring. If he saved $75,
what percent of the money he
earned did he save?
Answers
Answer: 50%
Step-by-step explanation:
75:150*100 =
(75*100):150 =
7500:150 = 50
Answer:
50%
Step-by-step explanation:
150-75=75
75 is half of the money he earned and 75 is half he saved.
100 dived by 2 is 50 therefore 50 %
Answer please don't put wrong answer. 30 points.
Answers
it would be D y=2x +2
Seventy-two percent of the light aircraft that disappear while in flight in a certain country are subsequently discovered. Of the aircraft that are discovered, 66% have an emergency locator, whereas 80% of the aircraft not discovered do not have such a locator. Suppose a light aircraft has disappeared. (Round your answers to three decimal places.)
a) If it has an emergency locator, what is the probability that it will not be discovered?
b) If it does not have an emergency locator, what is the probability that it will be discovered?
c) If we consider 10 light aircraft that disappeared in flight with an emergency recorder, what is the probability that 7 of them are discovered?
Answers
Answer:
a) 0.105 = 10.5% probability that it will not be discovered if it has an emergency locator.
b) 0.522 = 52.2% probability that it will be discovered if it does not have an emergency locator.
c) 0.064 = 6.4% probability that 7 of them are discovered.
Step-by-step explanation:
For itens a and b, we use conditional probability.
For item c, we use the binomial distribution along with the conditional probability.
Conditional Probability
We use the conditional probability formula to solve this question. It is
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]
In which
P(B|A) is the probability of event B happening, given that A happened.
[tex]P(A \cap B)[/tex] is the probability of both A and B happening.
P(A) is the probability of A happening.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
a) If it has an emergency locator, what is the probability that it will not be discovered?
Event A: Has an emergency locator
Event B: Not located.
Probability of having an emergency locator:
66% of 72%(Are discovered).
20% of 100 - 72 = 28%(not discovered). So
[tex]P(A) = 0.66*0.72 + 0.2*0.28 = 0.5312[/tex]
Probability of having an emergency locator and not being discovered:
20% of 28%. So
[tex]P(A cap B) = 0.2*0.28 = 0.056[/tex]
Probability:
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.056}{0.5312} = 0.105[/tex]
0.105 = 10.5% probability that it will not be discovered if it has an emergency locator.
b) If it does not have an emergency locator, what is the probability that it will be discovered?
Probability of not having an emergency locator:
0.5312 of having. So
[tex]P(A) = 1 - 0.5312 = 0.4688[/tex]
Probability of not having an emergency locator and being discovered:
34% of 72%. So
[tex]P(A \cap B) = 0.34*0.72 = 0.2448[/tex]
Probability:
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.2448}{0.4688} = 0.522[/tex]
0.522 = 52.2% probability that it will be discovered if it does not have an emergency locator.
c) If we consider 10 light aircraft that disappeared in flight with an emergency recorder, what is the probability that 7 of them are discovered?
p is the probability of being discovered with the emergency recorder:
0.5312 probability of having the emergency recorder.
Probability of having the emergency recorder and being located:
66% of 72%. So
[tex]P(A \cap B) = 0.66*0.72 = 0.4752[/tex]
Probability of being discovered, given that it has the emergency recorder:
[tex]p = P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.4752}{0.5312} = 0.8946[/tex]
This question asks for P(X = 7) when [tex]n = 10[/tex]. So
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 7) = C_{10,7}.(0.8946)^{7}.(0.1054)^{3} = 0.064[/tex]
0.064 = 6.4% probability that 7 of them are discovered.
un abuelo dijo a su nieto mira que curioso tu edad es la quinta parte de la mia pero también es igual a la tercera parte de mi edad menos diez años ¿cuántos años tiene el nieto y el abuelo?
Answers
¿Puedo conseguir la corona? y el abuelo tiene cincuenta y ocho años
A number is greater than 8. The same number is less than 10. The inequalities x > 8 and x <10 represent the situation.
Which best explains the number of possible solutions to the inequality?
There is one solution because 9 is the only number between 8 and 10.
There are a three solutions because 8, 9, and 10 are possible solutions.
There are a few solutions because there are some fractions and decimals between 8 and 10.
There are infinite solutions because there is always another number between any two numbers.
Answers
Answer:
There are infinite solutions because there is always another number between any two numbers.
Step-by-step explanation:
Answer the question plz
Answers
Step-by-step explanation:
58 i think....................
Answer:
Ignore my handwriting and your answer is 58;)
answer quick pls due today
Answers
Answer:
A
Step-by-step explanation:
Answer:
$17.17! I really hope this helped kiddo :3
y=7/x, x≠0 need the graph answer!!
Answers
Answer:
so the first picture is it graphed without solving it and the second graph is the answer to it graphed
Step-by-step explanation:
Abigail bought 6/8 of a pound of turkey at the deli She used 2/4 of it to make sandwiches for lunch how much of the turkey did Abigail use for sandwiches
Answers
Answer:
2/8
Step-by-step explanation:
I think this is subtraction (if not just tell me i'll edit)
6/8 - 2/4 = 6/8 - 4/8 = 2/8
Answer:
4/8
Step-by-step explanation:
2/4 is equivalent to 4/8
She was 2/8 left over btw
help please if you can :D
Answers
The coordinates of one end point of a line segment are ( 2 , 7 ). The line segment is 12 units long. Give three possible coordinates of the line segment’s other end point.
Answers
Answer:
12 units up (2, 19) 12 units down (2, -5) 12 units to the right (14,7) 12 units to the left (-10,7) any of these points are answers.
n
The Federal Reserve
manages the nation's currency and money supply by
manipulating interest rates and acting as a lender to banks.
overseeing bank collections and payments on loans.
dictating criteria and setting loan terms for banks.
offering investment advice and adjusting interest rates.
Answers
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Financials.
Hence,according to the statement given above, the correct answer is
option 1.)
===> Manipulating interest rates and acting as a lender to the banks.
The Wellbuilt Company produces two types of wood chippers, economy and deluxe. The deluxe model requires 3 hours to assemble and 1/2 hour to paint, and the economy model requires 2 hours to assemble and 1 hour to paint. The maximum number of assembly hours available is 30 per day, and the maximum number of painting hours available is 9 per day. (a) Write the system of inequalities that describes the constraints on the number of each type of wood chipper produced. (Let x represent the number of deluxe models, and let y represent the number of economy models.)
Answers
Answer:
3x + 2y ≤ 30
0.5x + y ≤ 9
Step-by-step explanation:
Number of deluxe model = x
Number of economy models = y
Assembly hours :
Maximum hours = 30
Deluxe model = 3 hours
Economy model = 2 hours
3x + 2y ≤ 30
Painting :
Maximum hours = 9
Deluxe model = 1/2 = 0.5 hours
Economy model = 1 hours
0.5x + y ≤ 9
Therefore the inequality constraints are:
3x + 2y ≤ 30
0.5x + y ≤ 9
Select the correct answer from each drop-down menu.
Brian has started to invest in the stock market. What does he need to know about reporting dividend income on his tax return?
A taxpayer’s dividend income is reported on Form
. The taxpayer must enter this amount in the
section of a tax return. After all deductions have been subtracted, the amount of taxes due will be calculated based on the
.
Answers
Im not sure about the second one but the first one is 1099-DIV and the last one is taxable income. I can tell you the second one is NOT deductions haha
Answer:
1099-DIV
Income
Taxable Income
Step-by-step explanation:
Plato