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viktelen [127]
3 years ago
5

Solve for "x" : 2x + 3x + 4x =36​

Mathematics
2 answers:
Anestetic [448]3 years ago
7 0

Answer:

4

Step-by-step explanation:

2x + 3x + 4x = 36

Evaluate like terms.

9x = 36

Find x.

x = 36 ÷ 9

x = 4

aliya0001 [1]3 years ago
5 0

Answer:

b) 4

Step-by-step explanation:

2x+3x+4x=36

=5x+4x=36

=9x=36

x=36/9

x=4

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You are making costumes for a play. You have sewn 9 costumes. If you are 30% finished, how many costumes are you sewing?
Veseljchak [2.6K]

here's the solution : -

if i made 9 costumes and it is 30 % of total costumes, so lets take the total number of costumes as <u>x</u><u> </u>

so, by above statement we get,

\frac{30}{100}  \times x = 9

=》

x = 9 \times  \frac{100}{30}

=》

x = 30

so, total number of costumes = 30 costumes.

4 0
2 years ago
How big is angle theta? <br><br> thank you in advance for your help!
DerKrebs [107]

Answer:

Θ = 124°

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n - 5, thus

sum = 180° × 3 = 540°

Sum the given interior angles and equate to 540

2x - 3 + 2x + 7 +3x - 4 + 3x - 4 + 3x - 2 = 540, that is

13x - 6 = 540 ( add 6 to both sides )

13x = 546 ( divide both sides by 13 )

x = 42

Thus

Θ = 3x - 2 = 3(42) - 2 = 126 - 2 = 124°

3 0
3 years ago
Please help me, it’s a math question
Mandarinka [93]

Answer:

Step-by-step explanation:

Triangle PQR is given to be a right triangle, so the Pythagorean Theorem can be used to determine that PQ is the hypotenuse.

It is given that x^2 + y^2 =z^2 in triangle ABC, so AB = PQ.

The information shows that the triangles are congruent because their three sides are congruent. Therefore, to show that triangle ABC is a right triangle, we can use corresponding parts of the congruent triangles to show that BCA is a right angle.

4 0
2 years ago
harriet has $25 in her savings account. she will add 5 dollars each week and not take any money out of her account which express
tiny-mole [99]

Answer:

I would say 5x+25 but I don't know the options :/

Step-by-step explanation:

3 0
2 years ago
Can someone help me w/ this question plz?
dlinn [17]

Answer:

16 birds

8 mammals if you need to know.

Step-by-step explanation:

We can set this system of equations up by plugging the 2m from the second equation into where it says r in the first equation. The reason why we do this is because

The 2m is equal to r, so we can replace the r in the first equation with 2m, since they are equal.

Divide both

We can confirm this because

uh

(I like the enter key lol.)

It's the return key on some keyboards in other countries.

Oh yeah.

We can confirm the values.

If there are 16 birds, there is probably going to be a total of 32 legs.

With 8 mammals, it is something like 8 x 4, which is 32

32 + 32 = 64, which is the total.

6 0
2 years ago
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