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Nat2105 [25]
3 years ago
7

Using the equation y = 2x – 3, what would the input need to be for an output of 7?

Mathematics
2 answers:
Keith_Richards [23]3 years ago
8 0

Answer:

5

Step-by-step explanation:

We have an equation and are asked to find the input of x when y = 7.

The output = y = 7

The input = x

7 = 2x - 3

2x - 3 = 7

We need to find a number that multiplied by 2 which then is subtracted by 3 equals 7. We can use the backwards method  to solve our answer.

2x - 3 = 7

7 + 3 = 2x

10 = 2x

Solve for x by dividing 2 from both sides :

x = 5.

Therefore, you would need an input of 5 to get 7 as the output.

Proof :

2(5) - 3 = 7

10 - 3 = 7

kari74 [83]3 years ago
4 0

Answer:

x = 5

Step-by-step explanation:

Remark

This is a fancy way of asking you what is the value of x when y = 7

Equation

7 = 2x - 3

Solution

7 = 2x - 3                  Add 3 to both sides

7 + 3 = 2x                 Combine the left.

10 = 2x                      Divide by 2

2x/2 = 10/2

x = 5

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Plz solve this for me it’s impossible
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Answer:

96 yards

Step-by-step explanation:

you could divided this figure into three parts.

i divided it so it is like the two big rectangle and the small one in the middle.

5 times 8=40

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7 0
4 years ago
If I have 17 boxes contain 23 chocolate bars each How many chocolate bars do I have in total?​
Elenna [48]

Answer:

391

Step-by-step explanation:

17 x 23 = 391

3 0
3 years ago
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Identify the polynomial x^3-y^3+z
Vaselesa [24]

Answer:

Hi there!

The answer to this question is:

Standard: y= x- (cube root) z

the leading coefficient: 1

Step-by-step explanation:

when identifying a polynomial you always need to know the standard equation, and leading coefficient.

-you first need to know what "y" so you move y to the other side by adding it on both sides

-then you need to get y by itself and cube root it on both sides resulting in x^3 becoming x and z becoming (cube root) z

5 0
4 years ago
Ashley baked 3 dozen cupcakes for a bake sale. If she sold all the cupcakea for $.75 each, how much money would she collect?
antoniya [11.8K]

Answer:

She would collect $27.

Step-by-step explanation:

A dozen means that it is a set of twelve items, so in order to find the amount of cupcakes she sold, you have to multiply 12 for the number of dozens she baked which was 3:

12*3=36

Now that you know the number of cupcakes she sold, you have to multiply this for the price of each cupcake:

36*$0.75= $27

According to this, the answer is that she would collect $27.

4 0
3 years ago
Plzzzz help asap lost ten u gain it asap
amm1812
1.35/ 12 = 0,112 So the unit cost will be 0,112 Check the answer 0,112 *12 = 1.35 
6 0
3 years ago
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