MATHEMATICS MIDDLE SCHOOL

Which values of m and b will create a system of equations with no solution? Select two options. y = mx + b y = –2x + A system of equations. y equals m x plus b. y equals negative 2 x plus StartFraction 3 over 2 EndFraction. A coordinate grid with a line labeled y equals negative 2 x plus StartFraction 3 over 2 EndFraction and passes through the points (9, 1.5) and (1, 0.5). m = –3 and b = m equals negative 3 and b equals negative StartFraction 2 over 3 EndFraction. m = –2 and b = m equals negative 3 and b equals negative StartFraction 1 over 3 EndFraction. m = 2 and b = m equals 2 and b equals negative StartFraction 2 over 3 EndFraction. m = m equals StartFraction 3 over 2 EndFraction and b equals negative StartFraction 2 over 3 EndFraction and b = m equals negative StartFraction 3 over 2 EndFraction and b equals negative StartFraction 2 over 3 EndFraction m = -2 and b = m equals negative 2 and b equals negative StartFraction 2 over 3 EndFraction

Answers

Answer 1

Answer:

Answer:

B, E

Step-by-step explanation:

Given the first function:

$y=-2x+(2)/(3)$

A Linear System with no solutions is graphically represented by two parallel lines, therefore with the same slope. So in this case, m has to be equal to -2.

And to this inconsistent system, if the linear parameter is not so relevant. So if m=-2 then b may be either equal to -1/3 or -2/3 according to the options.

Given the alternatives

No Solution System:

$\left\{\begin{matrix}y=-2x+(2)/(3) & \n y=-2x-(1)/(3) & \end{matrix}\right.$

$\left\{\begin{matrix}y=-2x+(2)/(3) & \n y=-2x-(2)/(3) & \end{matrix}\right.$

Answer 2

Answer:

Answer:

m = -2 and b = -1/3

m = -2 and b = -2/3.

Step-by-step explanation:

y = -2x - 1/3

y = -2x - 2/3

This system has no solutions because y cannot be 2 different values at once.

Option A is the correct answer.

Step-by-step explanation:

We have

1 pound = 16 ounces

12 pound = 12 x 16 ounces = 192 ounces

A shopper bought a 12- pound bag of oranges for 18.75.

That is

Price of 12 pounds = 18.75

Price of 192 ounces = 18.75

$\texttt{Price of 1 ounce = }(18.75)/(192)\n\n\texttt{Price of 1 ounce = }=0.098$

Option A is the correct answer.

18.75 divided by 12 equals about 1.56 so therefore it is C :)

A volunteer called 280 homes to ask questions about an upcoming election. Of these calls, 92 were not answered. Based on those results, what is the probability that the next call the volunteer makes is not answered?

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Hi there! :) The answer of your question is 0.32 or 32%. I got the answer because I divided 92/280=0.32. I hope this is the right answer.

Hope I helped! :D

Maxine spent 15 hours doing her homework last week. This week she spent 18 hours doing homework. She says that she spent 120% more time doing homework this week. Is she correct? Show your work to justify your decision

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The best way to solve this problem is to use the 'rule of three":

If 15% correspond to 100%

then 18% correspond to X%

We notice that both lines are in the following proportion:

(15) / (100%) = (18) / (X%)======> X%= (18 x 100%) / 15= 6/5 = 1.2 =120%

Answer:

Maxine is incorrect.

Step-by-step explanation:

18 - 15 = 3 3/15 = 0.2 0.2(100) = 20.

20% is the percent of increase. 120% would be the total of both combined. Since we are only looking for how much more, it would be 20%.

There are 34 adults and children13 on tour how much money will the group save by visiting the main deck of the observation tower instead of the top deckexplain your answer

tower main deck adult $25
tower main deck child $19
top deck all $32

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You would save 407 dollars by getting the kids at 19 a piece and the adults at 25 a piece instead of paying the 32 dollars for each person

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Option A is the correct answer.

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