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Charra [1.4K]
3 years ago
12

Find n solve. 5n+3+4n=30

Mathematics
1 answer:
Sidana [21]3 years ago
3 0

5n + 3 + 4n = 30                     combine the like terms on the left

9n + 3 = 30                              Subtract 3 from both sides

9n = 30 - 3

9n = 27                                     Divide by 9

n = 27/9

n = 3

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Someone tell me the anwser and i need to show my work too
Zinaida [17]
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$18.50x0.2=$3.70
Now you need to subtract $3.70 from $18.50
$18.50-$3.70=$14.80
Now that you have the new price, you need to find 6.75% of it to get the sales tax, so you multiply $14.80 by 6.75%, which is 0.0675 as a decimal.
$14.80x0.0675=$0.999 or $1 
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6 0
3 years ago
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Which dilation is shown by this graph?
beks73 [17]

Answer:

1/3

Step-by-step explanation:

Take the far side original length and dilated length 3/9 divide it = 1/3 and that’s the answer

5 0
3 years ago
The box plots show the data distributions for the number of text messages Will and Jaime sent each day.What is the difference of
Softa [21]
Hey there!

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4 0
2 years ago
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vichka [17]
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5 0
2 years ago
Find the product (3a4+4)2​
asambeis [7]

The result is

9

a

2

−

16

The reason is the following:

The problem is an example of a notable product: "the sum multiplied by the diference is equal to the difference of squares", that is to say:

(

a

+

b

)

⋅

(

a

−

b

)

=

a

2

−

b

2

.

By applying this to our question, we obtain that:

(

3

a

−

4

)

⋅

(

3

a

+

4

)

=

(

3

a

)

2

−

(

4

)

2

=

9

a

2

−

16

.

4 0
3 years ago
Read 2 more answers
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