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2 years ago

3x+9 -------- how do I solve this? 4x+12

Mathematics

2 answers:

OLEGan [10]2 years ago

7 0

$

Answer :$ $(3x+9)/(4x+12) \\ =3(x+3)/4(x+3) \\ =3/4 \\ (=0.75)$

Reptile [31]2 years ago

5 0

Put common terms in evidence and simplify:

$\boxed{\frac{3x+9}{4x+12}=\frac{3(x+3)}{4(x+3)}=\frac{3}{4}}$

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10p - (3p - 4) = 4(p + 1) + 9

andrezito [222]

Answer:

p = 3

Step-by-step explanation:

distribute parenthesis on both sides of the equation

10p - 3p + 4 = 4p + 4 + 9 ( simplify both sides )

7p + 4 = 4p + 13 ( subtract 4p from both sides )

3p + 4 = 13 ( subtract 4 from both sides )

3p = 9 ( divide both sides by 3 )

p = 3

6 0

2 years ago

If the dimensions of a square based pyramid are tripled what happens to the volume?

11Alexandr11 [23.1K]

Plug in numbers. if originally, it was V=1/2 * 1 * 1 * 2=1

tripling the dimensions would be V=1/2 * 3 * 3 * 6=27 

it would be 27 times larger. this could also be found by 3^3, just as doubling would render 2^3

7 0

3 years ago

Read 2 more answers

What number has the same value as 14 tens

nasty-shy [4]

The number with the same value will be 40 because 10 tens make 100 and 4 tens make 40 so it wili be 140

8 0

3 years ago

Read 2 more answers

Find the measure of Angle B A. 50° B. 55° C. 60° D. 65°

kondaur [170]

Option B. 55° is the correct answer

Step-by-step explanation:

"The sum of interior angles of a triangle is always 180°"

Given

m∠A=(3x+1)°

m∠B=(2x-1)°

m∠C = 40°

We know that

m∠A+m∠B+m∠C=180°

Putting the values of angles

$(3x+1) +(2x-1) +40 = 180\\3x+1+2x-1+40 = 180\\5x+40=180\\$

Subtracting 40 from both sides

$5x+40-40=180-40\\5x=140$

Dividing both sides by 5

$\frac{5x}{5} = \frac{140}{5}\\x=28$

We have to find Angle B,

m∠B = 2x-1 = 2(28)-1 = 56-1 = 55°

Hence,

m∠B=55°

Option B. 55° is the correct answer

Keywords: Triangle, Interior angles

Learn more about triangles at:

#learnwithBrainly

8 0

2 years ago

Please help!!! Will mark brainliest answer if correct!!!!

AlekseyPX

Answer:

x=4 and y=2

Step-by-step explanation:

Name the triangles as ABC and DEF,

Now, since both the triangles are congruent by HL rule, therefore

$3y=x+2$ (1)

and $x=y+2$ (2)

Substituting the value of $x=y+2$ in equation (1), we get

$3y=y+2+2$

$2y=4$

$y=2$

Therefore, Putting y=2 in equation (2),

$x=4$

6 0

3 years ago