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tankabanditka [31]
2 years ago
13

Evaluate 2(x+6) +3r+4

Mathematics
2 answers:
Rudik [331]2 years ago
5 0

3

Alchen [17]2 years ago
5 0

Answer:

2x+3r+16

Step-by-step explanation:

If you mean by simplify, here's the solution

2(x+6)+3r+4

2x+12+3r+4

2x+3r+16

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Plz plz plz help me with this
erica [24]
This question wants you to find a common denominator for the fractions.
This means finding the LCM, least common multiple, for 21 and 9.
This can be done by listing the multiples for each number until they meet at a common one.

9:
9
18
27
36
45
54
63

21:
21
42
63

This means the LCM of 21 and 9 is 63.
So the lowest possible common denominator is 63.

21 • 3 = 63
So you have to multiply the numerator of 2/21 by 3 as well.
2 • 3 = 6
2/21 = 6/63

Now do the same for 1/9.
9 • 7 = 63
Multiply the numerator, 1, by 7.
1 • 7 = 7
1/9 = 7/63

So in the first blanks, you would put 6/63 for what 2/21 is equal to and 7/63 for what 1/9 is equal to.

7/63 is greater than 6/63.
7/63 > 6/63
That means 1/9 > 2/21
So 2/21 < 1/9 is the answer to the last blank.

Hope this helps!
6 0
3 years ago
How to solve the area of a triangle
drek231 [11]
<h2>The area A of a triangle is given by the formula A=1/2*b*h where b is the base and h is the height of the triangle.</h2>

Step-by-step explanation:

<h2>The photo which is in the attachment is an example for your question. </h2>

<h2>hope this answer helps you!!</h2>

7 0
2 years ago
Helppp meee pleaseeee
podryga [215]

The correct answer is D

4 0
2 years ago
Read 2 more answers
9x+2y-27z=-155 -11x-y+37z=208 19x+6y-52z=-304
Paladinen [302]

Answer:

(x,y,z)=( -2, -1 ,5)

Step-by-step explanation:

9x+2y-27z=-155                                                        (1)

-11x-y+37z=208                                                        (2)

19x+6y-52z=-304                                                     (3)

(1) *3   ;(2) *6     ;(3)*1, you have

27x+6y-81z=-465                                                      (1)

-66x-6y+222z=1248                                                 (2)

19z+6y-52z=-304                                                      (3)


(1) +(2), you have

-39x+141z= 783                                                       (4)

(4) /3, you have

-13x +47z=261                                                          (4)


(2) +(3), you have

-47x+170z=944                                                       (5)


From ( 4) and (5), you have equations

-13x +47z=261                                                         (4)

 -47x+170z=944                                                       (5)


(4)*(-47);    (5)*13,  you have

611x-2209z=-12,267                                              (4)

-611x+2210z=12,272                                              (5)


(4)+(5), you have

z=5

Replace z=5 in (4), you have

611x- 2209*5=-12,267

611x- 11,045 =-12,267

611x=-1222

x= -2

Replace x=-2, z=5 in (1) , you have

9*(-2) +2y -27*5=-155

-18+2y-135=-155

-18+2y=-20

2y=-2

y=-1

Result (x,y,z)=( -2, -1 ,5)









3 0
3 years ago
Which number should each side of the equation 4/5x=8 be multiplied by too produce the equivalent equation of x= 10
Mariulka [41]
5/4   because 4/5x * 5/4 = x   and 8 * 5/4  = 10
5 0
3 years ago
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