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weeeeeb [17]
3 years ago
6

Help with pre algerbra equations PLZ

Mathematics
2 answers:
Makovka662 [10]3 years ago
8 0
5.4a+8.2=9.8a-2.8  subtract 9.8a from both sides

-4.4a+8.2=-2.8  subtract 8.2 from both sides

-4.4a=-11  divide both sides by 4.4

a=11/4.4

a=2.5
...

6(m-2)=12  perform indicated operations on left side...

6m-12=12  add 12 to both sides

6m=24 divide both sides by 6

m=4

...

6-m=5m+30  subtract 5m from both sides

6-6m=30  subtract 6 from both sides

-6m=24  divide both sides by -6

m=-4
Fudgin [204]3 years ago
3 0
For the first one a = 2.5. For the second one m = 4. For the third one m = -4
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Pls help and explain
Minchanka [31]

Answer:

C

Step-by-step explanation:

The answer is going to be miles per quart.  So B is wrong.

12 gallons allows you to travel 192 miles

1 gallon permits 192 / 12 = 16 miles / gallon. (Must be a truck of some kind).

1 gallon permits 16 miles of driving.

4 quarts (in 1 gallon) permits 16 miles of driving.

1 quart gives 16/4 = 4 miles / quart.

The answer is C.

==========================

There is a slightly shorter way

12 gallons contains 12 * 4 quarts = 48 quarts.

48 quarts permit 192 miles

1 quart permits 192/48 = 4 miles

4miles / quart.

The answer is still C

7 0
3 years ago
Please please help with this question , you will get 10 points if you answer this question, don’t get bothered with 1 point writ
bazaltina [42]

Answer:

11.7

Step-by-step explanation:

pls follow me and !ark as brainliest and follow me to get free points to all your answer's

6 0
3 years ago
Read 2 more answers
Which is the simplified form of (9c^-9)-3
Orlov [11]

3[3c^(-9)-1]

hope this helps


5 0
3 years ago
Is -3/4 a rational number? <br> pls help
Delvig [45]

Answer:

yes ❤️ it's rational number

Step-by-step explanation:

Mark as brainlist please ❤️

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8 0
2 years ago
Read 2 more answers
Item 2<br> Solve.<br> 52 – 2x = 4<br><br><br> –28<br><br><br> –24<br><br><br> 24<br><br><br> 28
mariarad [96]

Answer:

24

Step-by-step explanation:

52-2x=4 (move the constant to the right)

-2x=4-52 (calculate)

-2x=-48 (divide both sides)

solution: 24

hope this helps!

3 0
2 years ago
Read 2 more answers
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