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3 years ago

3x + 43 = 4x + 2(4 + 2)

Mathematics

2 answers:

Amiraneli [1.4K]3 years ago

5 0

Answer:

x = 31

Step-by-step explanation:

$3x+43=4x+2(4+2)\\\\\rightarrow 2*4=8\\\rightarrow 2*2=4\\\\3x+43=4x+8+4\\\\3x+43=4x+12\\\\3x+43-43=4x+12-43\\\\3x=4x-31\\\\3x-4x=4x-31-4x\\\\-x=-31\\\\\frac{-x}{-1}=\frac{-31}{-1}\\\\\boxed{x=31}$

fiasKO [112]3 years ago

3 0

Answer:

x=31

Step-by-step explanation:

first we simlify to get the simplist equation. 3x + 43 = 4x + 12. then 4x - 3x equalls and 43 - 12 equals 31.

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The hypotenuse of a right triangle measures 10 inches and the side opposite to <0 one of the non right angles is 5 inches lon

AfilCa [17]

Sin = Opposite/ Hypotenuse
Sin (theta)= 5/10
Sin^-1(5/10)=30
theta=30

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3 years ago

A recipe uses 7/8 of corn cereal and 3/4 of rice cereal. What is the total amount in cups of corn cereal and rice cereal

Luda [366]

Answer:

1.5 I believe

Step-by-step explanation:

7/8 + 3/4

3/4 x 2 = 6/8

6/8 + 7/8 = 13/8, simplified to 1.5

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3 years ago

Give the degree of the polynomial. 10yx^5w^4-w^3v^5-5x^11-6

torisob [31]

10yx⁵w⁴ - w³v⁵ - 5x¹¹ - 6

Degree = biggest exponent = 11

4 0

3 years ago

WILL MARK BRAINLIEST!!

adoni [48]

Answer:

solution: x= 0.273, y= 1.909.

Step-by-step explanation:

given system of linear equations : x+3y=64x−6y=6

these can also be splitted or written individually as:

x+3y=6 & 64x−6y=6

the first equation can also be written as, $y=2-\frac{x}{3}$

so, it is line with slope : -1/3 and y-intercept :2

the second equation can also be written as, $y=\frac{32x}{3} -1$

so, it is line with slope : 32/3 and y-intercept : -1

now we can easily draw graphs for these equations using the above interpretation.

graph is in the attachment.

so, the solution is: x= 0.273, y= 1.909.

8 0

3 years ago

IWhat is the equation of a line that passes through the points (3, 6) and (8, 4)?

Rzqust [24]

Answer:

$(x_1 =2, y_1 = 6), (x_2 = 2, y_2 = 4)$

$m =\frac{y_2 -y_1}{x_2 -x_1}$

And replacing we got:

$m=\frac{4-6}{8-3}= -\frac{2}{5}$

And for this case we can use the first point to find the intercept like this:

$6 = -\frac{2}{5}(3) +b$

And solving we got:

$b = 6 +\frac{6}{5}= \frac{36}{5}$

And then the line equation would be given by:

$y = -\frac{2}{5}x +\frac{36}{5}$

Step-by-step explanation:

For this case we have the following two points given:

$(x_1 =2, y_1 = 6), (x_2 = 2, y_2 = 4)$

And for this case we want an equation for a line with the two points given by:

$y = mx+b$

Wher m is the slope and b the y intercept. We can find the slope with this formula:

$m =\frac{y_2 -y_1}{x_2 -x_1}$

And replacing we got:

$m=\frac{4-6}{8-3}= -\frac{2}{5}$

And for this case we can use the first point to find the intercept like this:

$6 = -\frac{2}{5}(3) +b$

And solving we got:

$b = 6 +\frac{6}{5}= \frac{36}{5}$

And then the line equation would be given by:

$y = -\frac{2}{5}x +\frac{36}{5}$

5 0

3 years ago