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Pachacha [2.7K]
4 years ago
12

Form an equation use the letter x for a unknown answer

Mathematics
2 answers:
katrin [286]4 years ago
8 0
One step equation:
3x=15 (x=5)
Two step equation:
7x + 3 =31 (x=4)
Nata [24]4 years ago
6 0

Answer:

When you use x its to replace a number

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What is the product of (x+3) (2x-1)
snow_lady [41]
2x² +5x -3 

is your answer

hope this helps

FOIL = first, outside, inside last
7 0
3 years ago
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What is the volume of a rectangular sandbox that is 3 feet by 4 feet by 1 foot?
Paraphin [41]

Answer:

12ft3

Step-by-step explanation:

l x w x h=

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5 0
3 years ago
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Becca says that she can use elimination to solve the
xxTIMURxx [149]

yes i agree with her because elimination method is more simpler and shortest method to solve system of equations.

elimination method use to multiply  of both equation in order to balance the variable x or y and then equate them.

example

x+2y=7                                  .....equation 1

x-3y=14                                  .......equation 2

so you can multiply equation 1 by -1  in order to equate x and get the value of y    by saying equation 1 minus equation 2.

7 0
4 years ago
In Triangle ABC, angle A is congruent to angle B and
natita [175]

Answer:

Angle C=72º

Step-by-step explanation:

If two angles are congruent they are equals then angle A is 54º and angle B is 54º and the sum of the internal angles of a triangle is 180º then.

C=180º-54º-54º=72º

To know the value of on AC and BC we have to know the value of the other side AB, to find the values of the sides we can use the law of sines;

\dfrac{AB}{sin(72)}=\dfrac{BC}{sin(54)}=\dfrac{AC}{sin(54)}

4 0
3 years ago
HELP HELP HELP PLEASE
defon

Answer:

Put your dot on 7/4 and then then -1 means you will go left 1 time and down 1 time 1 left 1 down it should look like a staircase

Step-by-step explanation:

3 0
3 years ago
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