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Llana [10]
3 years ago
6

2(12 - y) = 23- (2y - 1) is there a solution for this?

Mathematics
2 answers:
IrinaK [193]3 years ago
4 0

Answer:

<em><u>This equation is an identity, all real numbers are solutions.</u></em>

Step-by-step explanation:

<em>Simplifying </em>

<em>2(12 + -1y) = 23 + -1(2y + -1) </em>

<em>(12 * 2 + -1y * 2) = 23 + -1(2y + -1) </em>

<em>(24 + -2y) = 23 + -1(2y + -1) </em>

<em> </em>

<em>Reorder the terms: </em>

<em>24 + -2y = 23 + -1(-1 + 2y) </em>

<em>24 + -2y = 23 + (-1 * -1 + 2y * -1) </em>

<em>24 + -2y = 23 + (1 + -2y) </em>

<em> </em>

<em>Combine like terms: 23 + 1 = 24 </em>

<em>24 + -2y = 24 + -2y </em>

<em> </em>

<em>Add '-24' to each side of the equation. </em>

<em>24 + -24 + -2y = 24 + -24 + -2y </em>

<em> </em>

<em>Combine like terms: 24 + -24 = 0 </em>

<em>0 + -2y = 24 + -24 + -2y </em>

<em>-2y = 24 + -24 + -2y </em>

<em> </em>

<em>Combine like terms: 24 + -24 = 0 </em>

<em>-2y = 0 + -2y </em>

<em>-2y = -2y </em>

<em> </em>

<em>Add '2y' to each side of the equation. </em>

<em>-2y + 2y = -2y + 2y </em>

<em> </em>

<em>Combine like terms: -2y + 2y = 0 </em>

<em>0 = -2y + 2y </em>

<em> </em>

<em>Combine like terms: -2y + 2y = 0 </em>

<em>0 = 0 </em>

<em> </em>

<em>Solving </em>

<em>0 = 0 </em>

natali 33 [55]3 years ago
3 0

Answer:

Step-by-step explanation:

Short Answer: No

2(12 - y) = 23- (2y - 1)                    Remove the Brackets on both sides

24 - 2y = 23 - 2y + 1                     Combine like terms on the right

24 - 2y = 24 - 2y                          No matter what you do, the 2ys are going to cancel. When they do, the question goes with them.

You get 24 = 24 Which is true but not relevant.

The other answer you could use is there are an infinite number of answers.

Equality will be maintained, but there is no single answer that works.

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kolezko [41]

Answer:

The slope is 2.

Step-by-step explanation:

If you use the formula that is shown in the picture, you can calculate that 12-4/6-2 is the slope. If you simplify, you'll get that 8/4 is the slope which simplifies to 2.

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3 years ago
Anthony is making his famous pizza pies to sell at the Munhall Community Festival. He uses 2212 cups of mozzarella cheese for ev
mylen [45]

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4 years ago
The nutty professor sells cashews for 7.20 per pound snd brazil nuts flr 4.00 per pound. How much of each type should be used to
lutik1710 [3]

Answer:

<u>19.01 pound</u> of cashews and <u>16.99 pounds</u> of brazil nuts should be used to make a 36 pound mixture that sells for 5.69 per pound.

Step-by-step explanation:

Given:

The nutty professor sells cashews for 7.20 per pound and brazil nuts for 4.00 per pound.

Now, to find each type should be used to make a 36 pound mixture that sells for 5.69 per pound.

Let the quantity of cashews be x.

Let the quantity of brazil nuts be y.

So, total pound of mixture of nuts:

x+y=36\\y=36-x\ \ \ .....(1)

Now, the total price of mixture per pound:

7.20(x)+4.00(y)=5.69(36)

7.2x+4y=204.84

Substituting the value of y from equation (1) we get:

7.2x+4(36-x)=204.84

7.2x+144-4x=204.84

3.2x+144=204.84

Subtracting both sides by 144 we get:

3.2x=60.84

Dividing both sides by 3.2 we get:

x=19.01.

The quantity of cashews = 19.01 pound.

Now, substituting the value of x in equation (1) we get:

y=36-x\\y=36-19.01\\y=16.99.

The quantity of brazil nuts = 16.99 pounds.

Therefore, 19.01 pound of cashews and 16.99 pounds of brazil nuts should be used to make a 36 pound mixture that sells for 5.69 per pound.

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3 years ago
Question 6:
AnnZ [28]
David rode his bicycle for 6 hours and he jogged for 8 hours during the past 2 weeks. We can say that per week, he rode his bicycle for 3hours and jogged for 4 hours. And he will jog for: 24 * 4 = 96 hours. Your welcome good luck
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3 years ago
WILL GIVE BRAINLIEST
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50.1 is the answer hope this helps and please GIVE ME BRAINIEST and add me as a friend. 86.9-36.8=50.1
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