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guapka [62]
3 years ago
14

Negative thirteen times a number plus 20 is equal to -11 times the number plus 38

Mathematics
1 answer:
Solnce55 [7]3 years ago
5 0

Answer:

The correct answer is n = -9.

Step-by-step explanation:

-13n + 20 = -11n + 38

20 = -11n + 38 + 13n             Add 13n to both sides

20 = 2n + 38                        Combine like terms

20 - 38 = 2n                         Subtract 38 from both sides

-18 = 2n                                 Simplify

-9 = n                                    Divide both sides by 2

OR

-13n + 20 = -11n + 38

-13n = -11n + 38 - 20             Subtract 20 from both sides

-13n = -11n + 18                      Combine like terms

-13n + 11n = 18                       Add 11n from both sides

-2n = 18                                 Simplify

n = -9                                    Divide both sides by -2

Hope this helps,

♥<em>A.W.E.</em><u><em>S.W.A.N.</em></u>♥

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PLEASSSSSEEE HELP A GIRL OUT PLZZ​
eduard

Answer:

B. The two lines are neither parallel nor perpendicular.

Step-by-step explanation:

First, put both lines into the same format. In this example, we're going to use y=mx+b format.

x - 4y = -9

-4y = -x + -9

y = (-x + -9) / -4

y = (x+9)/-4

y = (-1/4)x + (-9/4)

y = 3x - 7

If two lines are parallel, they have the same slope. (ie 4 and 4)

If two lines are perpendicular, one line's slope is the negative reciprocal of the other. (ie 4 and -1/4)

Neither is true here.

6 0
3 years ago
Eric owns and operates the hot food truck.The expression 3.25b+2h gives the cost of burgers and h hot dogs.What is the cost of 4
Nat2105 [25]
3.25(4)+2(6) --plug in values
13+12 --multiply
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5 0
3 years ago
How many times larger is 9 x 10^9 than 3 x 10^-4?
andrezito [222]
The larger value is 9 x 10^9
The smaller value is 3 x 10^(-4)

Divide the larger over the smaller
Doing so will have you divide the coefficients 9 and 3 (numbers in front of the "times ten to the..." portions) to get 9/3 = 3. 
Then you'll also subtract the exponents: 9 minus (-4) = 9 - (-4) = 9 + 4 = 13

In summary so far, we got a coefficient of 3 and an exponent of 13

So the final answer is 3 x 10^13 (assuming you want scientific notation)

If you want to convert to standard notation, instead of scientific notation, move the decimal point in 3.0 thirteen spots to the right to get 

30,000,000,000,000

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8 0
3 years ago
Find the value of the trigonometric ratio, sin C.
iogann1982 [59]

Answer:

The answer is option C

Step-by-step explanation:

sin C = opposite / hypotenuse

the opposite is 40

the Hypotenuse is 50

so

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Hope this helps you

3 0
3 years ago
Vijay missed 12 out of his last 16 free throws. Considering this data, how many of his next 20 free-throw attempts would you exp
PilotLPTM [1.2K]

The fraction computed shows that the number of his next 20 free-throw attempts that you expect Vijay to miss is 15.

<h3>How to solve the fraction?</h3>

From the information given, Vijay missed 12 out of his last 16 free throws. The fraction missed will be:

= 12/16

= 3/4

Therefore, the number of his next 20 free-throw attempts that you expect Vijay to miss will be:

= 3/4 × 20

= 15

Learn more about fractions on:

brainly.com/question/78672

5 0
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