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Molodets [167]
3 years ago
9

Add. (6x3+3x2−2)+(x3−5x2−3) pleaseeeeeee answer in standard form!!!!

Mathematics
1 answer:
Alex73 [517]3 years ago
4 0
I believe the answer is
7x^3-2x^2-5
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Shawn received $5 change from $20 when he bought some binders. How many binders did he buy if each binder costs $3?​
vazorg [7]

Answer:

5 binders

Step-by-step explanation:

3 times 5 binders would be 15$, and since he paid with 20$, that is 5 dollars change

As an algbraic equation:

3x+5=20

3x=15

x=5

5 0
4 years ago
Read 2 more answers
The wall is 12 feet long. They are placing studs every 18 inches. If there are studs on each end of the wall, how many studs wil
Oliga [24]

Answer:

9

Step-by-step explanation:

1 feet is 12 inches, so 12 feet is 12 * 12 = 144 inches.

If studs are placed 18 inches apart, in 144 inches, there will be:

\frac{144}{18}=8

<u><em>But remember, there is a stud at the very beginning (at 0 feet).</em></u>

<u><em /></u>

So in total there are going to be 9 studs

6 0
4 years ago
What is the value of x in the equation 3x-4y=65, when y=4?
Softa [21]

Answer:

\boxed{ \bold{ \huge{ \boxed { \sf{x = 27}}}}}

Step-by-step explanation:

Given, value of y = 4

To find : Value of x

\sf{3x - 4y = 65}

plug the value of y

\dashrightarrow{ \sf{3x - 4 \times 4 = 65}}

Multiply the numbers : 4 and 4

\dashrightarrow{ \sf{3x - 16 = 65}}

Move 16 to right hand side and change it's sign

\dashrightarrow{ \sf{3x = 65 + 16}}

Add the numbers : 65 and 16

\dashrightarrow{ \sf{3x = 81}}

Divide both sides by 3

\dashrightarrow{ \sf{ \frac{3x}{3}  =  \frac{81}{3} }}

Calculate

\dashrightarrow{ \sf{ x = 27}}

Hope I helped!

Best regards! :D

5 0
3 years ago
Read 2 more answers
Please answer faster
Lesechka [4]

Answer:

it would be 1 out of 6 chances

Step-by-step explanation:

7 0
4 years ago
Two points on a line L are (5,2) and (7,-4). what is the slope of L
klemol [59]

Answer:

-3

Step-by-step explanation:

The slope of a line can be calculated with the formula (y2-y1)/(x2-x1)

In this case we have:

(-4-(2))/(7-5)

(-6)/(2)

-3

Let me know if this helps!

8 0
3 years ago
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