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lisov135 [29]
3 years ago
11

What expressions are equivalent to 5x + (x+6) + 3x

Mathematics
1 answer:
anyanavicka [17]3 years ago
8 0

Answer:

9x + 6

Step-by-step explanation:

<u>Step 1:  Distribute</u>

5x + (x + 6) + 3x

5x + x + 6 + 3x

<u>Step 2:  Combine like terms</u>

5x + x + 6 + 3x

9x + 6

Answer: 9x + 6

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JJill begins the summer with $500 in her savings account. Each week, she withdraws $20. Her brother, Sam,starts the summer with
meriva

Answer:

7th week

Step-by-step explanation:

Let us represent the number of weeks as x

Jill begins the summer with $500 in her savings account. Each week, she withdraws $20.

$500 - $20× x

500 - 20x

Her brother, Sam,starts the summer with $150 in his account. He adds $30 to his account each week.

$150 + $30 × x

150 + 30x

At what week will both Jill and Sam have the same amount in their account?

We solve this be Equating both Equations together

Jill = Sam

500 - 20x = 150 + 30x

Collect like terms

500 - 150 = 30x + 20x

350 = 50x

Divide both sides by 50

50x/50 = 350/50

x = 7 weeks

Therefore, at the 7 week, Jill and sam would have the same amount in their accounts

3 0
3 years ago
Evaluate <br> a<br> +<br> 4<br> a+4a, plus, 4 when <br> a<br> =<br> 7<br> a=7a, equals, 7.
Scilla [17]

<em>When evaluating a=7 then we get that the expression is 11</em>

<h2>Explanation:</h2>

As I understand the expression is the following:

a+4

Let's call, that expression as E

So we are asked to find the value of the expression when a=7. In other words, we need to substitute a=7, so:

E(7)=(7)+4 \\ \\ E(7)=11

So <em>when evaluating a=7 then we get that the expression is 11</em>

<h2>Learn more:</h2>

Distributive property: brainly.com/question/10794694

#LarnWithBrainly

4 0
4 years ago
I need help with this
vodka [1.7K]

9514 1404 393

Answer:

  • Natural
  • Whole
  • Integer
  • Rational

Step-by-step explanation:

4563 is a positive integer, hence a Natural number. It fits in the innermost oval on the left side of the diagram, so is a member of all enclosing sets:

  • Natural
  • Whole
  • Integer
  • Rational
  • Real
5 0
3 years ago
Display a data set with an outlier
Goryan [66]
Outliers are numbers that are less than all of the other numbers or greater than the other numbers

5 0
3 years ago
Read 2 more answers
Which of the following has no solution?
tresset_1 [31]

Answer:

(x+11)

Step-by-step explanation:

Solve all options.

1. (x+1

x+1

So,

(x+1

There are solutions.

2. (x+1\le1)\cap (x+1\ge 1)

x+1\le 1\Rightarrow x\le 0\\ \\x+1\ge 1\Rightarrow x\ge 0

So,

(x+1\le 1)\cap (x+1\ge 1)\Rightarrow (x\le 0)\cap (x\ge 0)\Rightarrow (x=0)

There is one solution.

3. (x+11)

x+10

So,

(x+11)\Rightarrow (x0)\Rightarrow (x\in \emptyset)

There are no solutions.

7 0
3 years ago
Read 2 more answers
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