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ollegr [7]
3 years ago
15

Simplify. (-8n + 11) + (2n -3)

Mathematics
2 answers:
Rasek [7]3 years ago
4 0

Answer:

-6n + 8

Step-by-step explanation:

-8n + 2n = -6n

11 - 3 = 8

Hope this helps :)

dedylja [7]3 years ago
4 0

Answer:

-6n + 8

Step-by-step explanation:

(-8n + 11) + (2n - 3)

First let's look at the expressions within the parentheses.

-8n + 11 ⇒ This expression is fully simplified because you cannot add different variables together.

2n - 3 ⇒ This expression is fully simplified because you cannot subtract different variables together.

Since we are adding these expressions, we can take away the parentheses.

-8n + 11 + 2n - 3

Now, let's rearrange the term so the like terms are next to each other.

-8n + 2n + 11 - 3

Simplify the variable.

-6n + 11 - 3

Simplify the constants.

-6n + 8

This is your simplified expression.

Hope this helps!

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63% of 300 is what number ​
PolarNik [594]

Answer:

189

Step-by-step explanation:

You take 63% make it a decimal by dividing it by 100 and then you multiply it with 300. 300*.63=189.

6 0
3 years ago
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HELP TEMPERATURE! do all of them for 50 points!!!​
Flauer [41]

Answer:

-2

76

14

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Step-by-step explanation:

skip count by 2 until the bar stops

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The first barn contained 3 times more hay than the second one. After 20 tons of hay were removed from the first barn and 20 tons
pentagon [3]

Answer:

Amount of hay in first barn = 90 tons

Amount of hay in second barn song = 30 tons                

Step-by-step explanation:

Let the amount of hay in second barn be x, then hay in first barn will be 3x.

20 tons of hay was removed from first barn and ws added to second barn.

Now, the amount of hay in first barn = 3x -20

Amount of hay in second barn = x+20

The equation now formed is:

x+20 = \frac{5}{7}(3x-20)

7x+14 = 15x -100

-8x = -240

8x = 240

x = 30

3x = 90

Amount of hay in first barn = 90 tons

Amount of hay in second barn song = 30 tons          



6 0
3 years ago
Can somebody help me <br> -2(x+5)
Anika [276]

Answer: -2x - 10

Steps: -2(x+5)

Apply the distributive law [ a(b + c) = ab + ac ]:

a = -2,  b = x,  c = 5

-2x + (-2) × 5

Apply minus/plus rules: -2x - 2 × 5

Multiply the numbers: 2 × 5 = 10

-2x - 10

Plz mark brainliest:)

5 0
3 years ago
"Use the following information to answer the question. The mean age of lead actresses from the top ten grossing movies of 2010 w
julia-pushkina [17]

Answer:

a) 10.6; 48.7; within

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 29.6

Standard deviation = 6.35

"According to the Empirical Rule, the ages of nearly all lead actresses will be between______________and_____________ years.

Nearly all(99.7%) will be within 3 standard deviations from the mean.

So from 29.6 - 3*6.35 = 10.6 years to 29.6 + 3*6.35 = 48.7 years.

Anna was 11-years old, so she was within this range.

So the correct answer is

a) 10.6; 48.7; within

7 0
3 years ago
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