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Wewaii [24]
3 years ago
12

-0.4a + 3 = 7a = ? ​

Mathematics
1 answer:
kherson [118]3 years ago
4 0
-0.4a = 7 - 3

-0.4a = 4

a = -10
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This question please; I’ve done all the others but this one has stumped me :/
vesna_86 [32]
2 way table
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boy    12     4     16     32
girl       14    9      5     28
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5 0
3 years ago
Divide the following fractions and reduce to lowest terms 2/3 divided by 4/5
pshichka [43]
Well to divide 2 fraction you first have to find a least common number between the 2 bottom numbers in the fractions, we know automaticall that 15 fits in both the 3 and the 5. now u have to find out what to multiply by each number to get 15, for example what number do you multiply by 3 to get 15?? well it will be 5, so go ahead and multiply it by the fraction (note that what you do  in the bottom you have to do in the top) this will give you 10/15, because I multiplied the top and bottom number by 5... lets try the other one what number do you multiply by 5 to get 15?? well it will be 3 so go ahead and multiply that to get 12/15.. now add the top numbers (note that the bottoms always stay the same, you never add or subtract them) when you do you will get 22/15, now you have to see if you can simplify it any further in this case you can't so your final answer is 22/15

Hope this helps
5 0
3 years ago
Please help and show work
amid [387]
Not a function, doesn’t pass vertical line test

The domain is C

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8 0
3 years ago
What is the solution to the inequality below?
dimaraw [331]
  • 12 + x ≥ 3 (x - 6)
  • or, 12 + x ≥ 3x - 18
  • or, 12 + 18 ≥ 3x - x
  • or, 30 ≥ 2x
  • or, 30/2 ≥ x
  • or, 15 ≥ x
  • or, x ≤ 15

<u>Answer</u><u>:</u>

<em><u>x </u></em><em><u>≤</u></em><em><u> </u></em><em><u>1</u></em><em><u>5</u></em>

Hope you could get an idea from here.

Doubt clarification - use comment section.

7 0
3 years ago
Read 2 more answers
Simplify <br> 3 2/3 - 2 3/4 =
Rasek [7]

Answer: 11/12

Step-by-step explanation:

1. To solve this problem you can transform the mixed numbers given in the problem to fractions, as you can see below:

3 2/3=(3*3+2)/3=11/3

2 3/4=(4*2+3)/4=11/4

2. Now you must make the substraction of the fraction:

11/3-11/4=11/12

3. Therefore, the answer is 11/12

6 0
4 years ago
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