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pychu [463]
3 years ago
15

How many solutions does 4(y-30)=4y+12

Mathematics
1 answer:
Anit [1.1K]3 years ago
8 0

\text{Solve for y:}\\\\4(y-30)=4y+12\\\\4y-120=4y+12\\\\\text{Subtract 4y from both sides}\\\\-120=12\\\\\text{You would see that the y variable is now non-existent}\\\\\text{This means that there are no solutions}\\\\\boxed{\text{No solutions}}

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Mrs. Carlson wrote the following question for her class: "Ricardo's basketball team is selling raffle tickets, Each ticket costs
IceJOKER [234]

Answer:

michelle, kaley, and Rebecca.

Step-by-step explanation:

They have sold 100 tickets so far ($75), they need to sell 380 ($285) tickets in total and need to sell 280 more tickets.

Michelle was wrong because she should have divided 210 (how much more money they need to sell on tickets) into .75 (which is how much each ticket costs).

Kaley was wrong because she should have also divided 210 into .75 like Michelle.

Rebecca should have also divided 210 into .75.

Eva was the only correct one.

7 0
3 years ago
What’s this answer you guys
RoseWind [281]

Radius is 16, that’s all I know

6 0
3 years ago
Bill has saved $825 from his last 8 paychecks. He saved either $75 or $150 a paycheck. Formulate and solve a system of equations
11Alexandr11 [23.1K]

Answer: 5 times

Step-by-step explanation:

Let the number of times that he saved $75 be x.

Let the number of times that he saved $150 be y.

Therefore, based on the information given in the question, we can form an equation which will be:

x + y = 8 ...... i

75x + 150y = 825 ....... ii

From equation I,

x + y = 8

y = 8 - x....... iiii

Put equation iii into ii and this will be:

75x + 150y = 825

75x + 150(8 - x) = 825

75x + 1200 - 150x = 825

75x - 150x = 825 - 1200

-75x = -375

x = 375/75

x = 5

He saved $75 5times from his paycheck.

4 0
3 years ago
How do you do elimination in systems of equations?
VMariaS [17]
Well, for solving system of equations, we can use either substitution where we plug one equation into the other, or elimination where we combine the equations.


- Using elimination, you would to eliminate one variable from both equations, so you automatically would get one equation with one variable!



4 0
3 years ago
Percentages. 5 1/4% multiplied by what equals 42?
Svetlanka [38]

Answer:

x = 800

Step-by-step explanation:

0.0525 × x = 42

x = 800

6 0
2 years ago
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