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Contact [7]
3 years ago
5

8(За + 6) = 9(2а — 4)

Mathematics
1 answer:
Ede4ka [16]3 years ago
3 0

Answer: <em>A = -14</em>

Step-by-step explanation:

<em>First, remove the parentheses</em>

<em>8(3a+6) =9(2a-4)</em>

<u><em>24a+48=9(2a-4)</em></u>

<em>Move the terms</em>

<em>24a+48=18a-36</em>

<u><em>24a-18a+48=-36</em></u>

<em>Collect the like terms (Calculate)</em>

<em>24a-18a=-36-48</em>

<u><em>6a=-36-48</em></u>

<em>Divide by both sides</em>

<em>6a=-84</em>

<em>Solution: a=-14</em>

<u><em /></u>

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Jimmy's class has 4 jump ropes, and their average length is 112 meters. one jump rope is 34 meters, the second jump rope is 1 me
rusak2 [61]

In this problem, the average is already given. In order to solve for the missing length of jump rope we have the following solution:

Let x = be the total length

X = 4(112)

X = 448

Therefore,

34m + 1m + 212m = 247m

448m - 247m = 201 length of the fourth jump rope

3 0
3 years ago
Find m Can you please provide a step by step
Fofino [41]

Answer:

∠ KLM = 27°

Step-by-step explanation:

∠ KLM + ∠ NLM = 90 , that is

3x + 7x = 90

10x = 90 ( divide both sides by 10 )

x = 9

Thus

∠ KLM = 3x = 3 × 9 = 27°

6 0
3 years ago
I will give you brainlest plzzz helppp!!!!
Morgarella [4.7K]

Answer:

329/9, the answer seems wrong but I triple checked because I thought so too. The answer is 100% correct

Step-by-step explanation:

Angle EFG + Angle FGH + Angle GEF = 180 degrees

(2x+1) + (6x+2) + (x + 19) = 180 degrees

9x + 22 = 180 degrees

9x = 158 degrees

x= 158/9

x+19 = Angle GEF

158/9 + 19 = Angle GEF

329/9 =Angle GEF

Double check:

(2x+1) + (6x+2) + (x + 19), x=158/9

2(158/9) + 1 = 325/9

6(158/9) +2 = 322/3

(158/9) +19 = 329/9

325/9 + 322/3 + 329/9 = 180

3 0
3 years ago
Evaluate the expression if m = – 4, n = 1, p = 2, q = –6, r = 5, and t = -2.<br><br> |3r + 6m
fgiga [73]

Answer:

m=4,2=9, and r=. (Examples 1-6). 1. 3+ m 7. 2. z-m 5. | 3. 12r 2

8 0
2 years ago
Line GH contains points G(–2, 6) and H(5, –3). What is the slope of ?
son4ous [18]

Answer:

The answer is

<h2>-\frac{9}{7}</h2>

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

m =  \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

G(–2, 6) and H(5, –3)

The slope is

m = -3 - 6 / 5 -- 2 = - 9 /7

Hope this helps you

3 0
3 years ago
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