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Olenka [21]
3 years ago
11

12m - 9 = 4m + 15 Please give a detailed step by step solution!

Mathematics
2 answers:
Ainat [17]3 years ago
6 0
To get m, you need to have the variable on one side. so subtract 4m from both sides so that the equation is now 8m-9=15.

it is now a two step equation.

add 9 to 15 to get 24 then divide 24 by 8 to get 3.
m=3 is the solution
Ne4ueva [31]3 years ago
3 0
You need to figure out what m is so first subtract 12 from then sybtract 9 from 9 then you havem by itself. now subtract 4 from 4 then add 4m to 4m and the add 15 to 9 and you should get your answer
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labwork [276]
625 = 125 · 5 = 25 · 5 · 5 = 5 · 5 · 5 · 5 = 5⁴
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There are 132 people seated in the school auditorium for an assembly.  There are 6 rows in the auditorium, each with the same nu
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7 0
3 years ago
Read 2 more answers
Solve by factoring. m^2+8m+7=0 A. 8,7 B. -7,1 C. -7,-1 D. 7,1
REY [17]
The answer is c, -1 or -7

Hope this helped :)
5 0
4 years ago
Can someone help me with this? Ava uses 8⁄9 gallonsof water every time she waters her lemon tree. If she waters her lemon tree 1
Nataly_w [17]

If Ava waters her lemon tree 12 times, then she has used 10.667 gallons of water.

<u>Solution:</u>

Given that , Ava uses \frac{8}{9} gallons of water every time she waters her lemon tree.  

If she waters her lemon tree 12 times, we have to find how much water will she use

Total water used = water used for 1 time \times number of time water used for plants

Here water used for one time = \frac{8}{9} gallons

Number of time watered = 12

\text { Total water used }=\frac{8}{9} \text { gallons } \times 12 \text { times }

\text { Total water used }=\frac{8}{9} \times 12=\frac{8}{3} \times 4=\frac{32}{3}=10.667

Hence, Ava used 10.667 gallons of water.

6 0
3 years ago
Which of the following shows an equivalent expression to [(5•3)•12 If only the associative property was used to transform the ex
Strike441 [17]

Answer:

[5 . (3 . 12)] shows an equivalent expression to [(5 . 3) . 12] if only the associative property was used to transform the expression ⇒ 1st answer

Step-by-step explanation:

The associative property means you can add or multiply some numbers without matter where you put the parenthesis

Ex: (a + b) + c = a + (b + c) <em>OR</em> (a . b) . c = a . (b . c)

<em>In associative property we move the parenthesis only (we do not move the numbers)</em>

Subtraction or division are not associative

∵ The expression is [(5 . 3) . 12]

- The parenthesis are around the first two numbers, then the

    equivalent expression is the one whose parenthesis are

    around the last two numbers

∴ The equivalent expression is [5 . (3 . 12)]

∴ [(5 . 3) . 12] ≡ [5 . (3 . 12)]

[5 . (3 . 12)] shows an equivalent expression to [(5 . 3) . 12] if only the associative property was used to transform the expression

4 0
3 years ago
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