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3 years ago

I'll give Brainliest

Mathematics

2 answers:

grandymaker [24]3 years ago

8 0

It’s d 142 I’m pretty sure

allochka39001 [22]3 years ago

4 0

Answer:

Step-by-step explanation:

the closest number to 12 is 142 , choice D

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Simplify 3 + [5n - (2-n)]

melisa1 [442]

Answer:

6n+1

Step-by-step explanation:

Eliminate the parenthesis by changing the symbol of each term inside

3+[5n-2+n]

Eliminate the bracket and group similar terms

5n+n+3-2

Simplify terms

6n+1

3 0

2 years ago

What is the value of x in the equation 5(4x-10)+10x = 4(2x-3)+2(x-4)?<br> A)-7/4 B)-1/4 C)3/20 D)3/2

Basile [38]

Answer:

D (3/2

Step-by-step explanation:

<u>Simplify both side of the equation</u>: 5(4x - 10) + 10x = 4(2x - 3) + 2(x - 4)

(5)(4x) + (5)(−10) + 10x = (4)(2x) + (4)(−3) + (2)(x) + (2)(−4)

Then you distribute: 20x + −50 + 10x = 8x + −12 + 2x + −8

(20x + 10x) + (−50) = (8x + 2x) + (−12 + −8)

Combine like terms: 30x + −50 = 10x + −20

30x - 50 = 10x - 20

<u>Subtract 10x from both sides</u>: 30x − 50 − 10x = 10x − 20 − 10x

20x - 50 = -20

<u>Add 50 to both sides</u>: 20x - 50 + 50 = -20 + 50

20x = 30

<u>Divide both sides by 20</u>: 20x / 20 = 30 / 20

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Boom! I hope that helped :)

5 0

3 years ago

Point J is the midpoint of segment FG with endpoints F(1,4) and G(5,12). Point K is the midpoint of segment GH with endpoints G(

faltersainse [42]

Answer:

1 unit

Step-by-step explanation:

If point J is the midpoint of segment FG with endpoints F(1,4) and G(5,12), then its coordinates are

$x_J=\dfrac{x_F+x_G}{2}=\dfrac{1+5}{2}=3\\ \\y_J=\dfrac{y_F+y_G}{2}=\dfrac{4+12}{2}=8$

If point K is the midpoint of segment GH with endpoints G(5,12) and H(-1,4), then its coordinates are

$x_K=\dfrac{x_G+x_H}{2}=\dfrac{5+(-1)}{2}=2\\ \\y_K=\dfrac{y_G+y_H}{2}=\dfrac{12+4}{2}=8$

The measure of JK is

$JK=\sqrt{(3-2)^2+(8-8)^2}=\sqrt{1^2+0^2}=1\ unit$

3 0

3 years ago

There are a total of 25 students in class. 60% of the students are in band. How many students are in band?

Marizza181 [45]

Step-by-step explanation:

60% of 25 :

100% = 25

1% = 25/100

= 0.25

60% = 0.25 x 60

= 15

So 15 pupils are in band.

5 0

3 years ago

two adjacent angles of a parallelogram are in the ratio 5:2: . find all the angles of the parallelogram

kicyunya [14]

<h2>Given :-</h2>

Two adjacent angles of a parallelogram are in the ratio of 5 : 2.

What is the all angles of the parallelogram.

<h3 /><h3 /><h2>Solution :-</h2>

Let, the first angles be 5x

And, the second angles will be 2x

As we know that,

★ Sum of all angles = 180° ★

According to the question by using the formula we get,

⇒ 5x+2x=180°

⇒7x=180°

⇒ $\sf x =\: \dfrac{\cancel{180^{\circ}}}{\cancel{7}}$

➠ $\sf\bold{\red{x =\: 25.7^{\circ}}}$

Hence, the required angles are,

First angles = 5x = 5(25.7°) = 128.5°
Second angles = 2(25.7°) = 51.4°

As we know that,

opposite angles in a parallelogram

is equal.

∴ The all angles of a parallelogram is 128.5°,51.4°, 128.5° and 51.4°.

6 0

3 years ago