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vitfil [10]
3 years ago
8

Solve linear equation 2y+20=2-y. 3y+20=2

Mathematics
1 answer:
Fiesta28 [93]3 years ago
3 0

Answer:

  y = -6

Step-by-step explanation:

y is multiplied by 3 and 20 is added to the sum. We undo these operations in reverse order.

First we subtract 20 from both sides of the equation:

  3y = -18

Then we divide both sides of the equation by 3 to undo the multiplication.

  y = -18/3 = -6

The solution is y = -6.

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Burgers come in packs of 10. The cost of 10 burgers is £3.45. How much does 1 burger cost?
arsen [322]
Answer: 1 burger = £0.345

Explanation:

10 burger = £3.45
1 burger = £3.45/10
1 burger = £0.345
7 0
3 years ago
Marcie ran the 400-meter race 3 times. her fastest time was 51.3 seconds. Her slowest time was 56.4 seconds. If Marcie's average
Nata [24]

Answer:

<em>52.5 Seconds</em>

<em></em>

Step-by-step explanation:

Let's call, her time for the third race, x.

To find the average (53.4), we add up all the values and then divide this total by the number of values.

So, we will set up our equation.

      56.4 + 51.3 + x

>    ------------------------ = 53.4

                3

To get rid of 3, we will multiply both sides by 3.

>   56.4 + 51.3 + x = 160.2

>   107.7 + x = 160.2

We will subtract 107.7 from both sides to isolate x.

<h2>> x = 52.5</h2><h2></h2><h3><em>I hope it will be understood.</em></h3><h3><em>If I have any inaccuracies please let me know.</em></h3><h3><em>Have a nice day and never stop questioning!</em></h3>
6 0
3 years ago
Two angles are vertical angles. One angle is labeled 2x°. The other angle is labeled (x+30)°. Find the value of X.​
allsm [11]
X=30 subtract the x and then you get 1x=30 which is x=30
6 0
3 years ago
What is reasonable estimate for the problem
vlabodo [156]

Answer:

-2

Step-by-step explanation:

this is i ready lol but basically the actual answer is -1.5 but if you round that you get -2

8 0
3 years ago
Read 2 more answers
Which one is bigger 30% or 4 /15<br>???
Nikolay [14]
I believe 30% is bigger than \frac{4}{15}.

To find the answer, you'd have to convert both the fraction and the percent into decimal form to see which one is truly bigger. Converting the percent is fairly easy. 30% would become 0.30 is decimal form. To find the fraction in decimal form, you'd have to divide the numerator by the denominator, which would be 4 ÷ 15, which makes : 2.6666666666666666666666667. 

Now you compare easily. Which one is bigger? 2.666666666666666666666667 or 0.30? 

0.30 is bigger. So 30% is bigger out of both of them.
5 0
3 years ago
Read 2 more answers
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