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Anuta_ua [19.1K]
3 years ago
11

5(2x+7x)=-31 +36 whats the anser

Mathematics
2 answers:
Basile [38]3 years ago
4 0

Answer:

In decimal form   x=0.1

In fraction form x=1/9

Brainliset pls

Iteru [2.4K]3 years ago
3 0

Answer:

5/45 or 1/9

Step-by-step explanation:

Step 1:

5 ( 2x + 7x ) = - 31 + 36      Equation

Step 2:

5 ( 9x ) = 5        Add and Subtract

Step 3:

45x = 5    Multiply

Step 4:

5 ÷ 45     Divide

Answer:

x = 5/45 or 1/9

Hope This Helps :)

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3x + y = 19 , and x + 3y = 1. Find the value of 2x + 2y
soldi70 [24.7K]
3x+y=19 \\
x+3y=1 \\ \\
\hbox{add the sides of the equations:} \\
3x+x+y+3y=19+1 \\
4x+4y=20 \\ \\ \hbox{divide both sides by 2:} \\
2x+2y=10

The answer is d. 10.
6 0
3 years ago
Solve for x on each of these questions please!
IgorLugansk [536]

Answer:

1. x = 10

2. x = 4

Step-by-step explanation:

I use the angle ABC method:

AB² + AC² = BC²

6² + 8² = x²

x = 10

AB² + AC² = BC²

3² + x² = 5²

x = 4

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5 0
2 years ago
Please help me I will mark u as brainlist​
vitfil [10]

Answer:

What kind of question is it?

5 0
2 years ago
How do you solve f(x) = 800(1.09)3x
natta225 [31]

Answer:

2616x

Step-by-step explanation:

8 0
3 years ago
the table shows the balance of a money market account over time. write a function that represents the balancr y (in dollars) aft
Solnce55 [7]

Answer:

y = 1500 * 1.09^t

Step-by-step explanation:

It should be clear that the rate of change is non-linear, meaning that we can express the function in the following manner

y = a * b^t, where a is the initial value and b is the rate of change and t is how many years.

Well, year 0 is the rate of change so we can say that a = 1500

Next, we divide any two consecutive year balances to find our rate of change:

1635/1500 = 1.09

Therefore, our equation looks like this: y = 1500 * 1.09^t

6 0
2 years ago
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