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Kaylis [27]
4 years ago
12

Eight times a number plus 3 times

Mathematics
1 answer:
klemol [59]4 years ago
5 0

Answer:

Step-by-step explanation:

8x + 3x = 9 + 12x , x = - 9

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Rearrange this to make a the subject
lyudmila [28]

Answer:

w = 3(2a + b) - 4

w = 6a + 3b - 4

a = (w - 3b + 4) / 6

7 0
4 years ago
Read 2 more answers
Which of the following ratios is not equivalent to the other three 2/3 4to6 8to12 4/5
balu736 [363]

Answer:

The non-equivalent ratio is 4:5.

Step-by-step explanation:

2/3 4/6 and 8/12 are equivalent because they are all multiples of each other.

7 0
3 years ago
What is the mode: 18,21,22,18,19
Evgesh-ka [11]

Answer:

18

Step-by-step explanation:

Mode =  modal class (Recurring)
The number/value that appears the most which in this case is 18 because it can be seen twice.

6 0
2 years ago
Which pair shows equivalent expressions?
DENIUS [597]

2(\frac{2}{5}x + 4) =  \frac{4}{5}x + 4 which is the second option is the equivalent expression.

Explanation:

First,  we need to calculate the value of two-fifths of x. It means 2 portions out of the five portions of x which equates to \frac{2}{5}x.

Now we calculate the values of the two expresssions on the LHS.

1) 2 (two-fifths x + 2) = 2 (\frac{2}{5}x + 2) = \frac{4}{5}x + 4.

2)  (two-fifths x + 4) = 2(\frac{2}{5}x + 4) =  \frac{4}{5}x + 8.

Now we determine values of the four expressions on the RHS.

1) Two and two-fifths x + 1 = 2\frac{2}{5}x + 1

2) Four-fifths x + 4 = \frac{4}{5}x + 4

3) Four-fifths x + 2 = \frac{4}{5}x + 2

4) Two and two-fifths x + 8 = 2\frac{2}{5}x + 8.

Out of the various LHS and RHS values, the 1^{st} LHS value and 2^{nd} RHS value is the same. So option 2 is the answer.

7 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST<br> What is X?
Karo-lina-s [1.5K]

Answer:

x = 20

Step-by-step explanation:

    2x + 7x = 180

⇔ 9x = 180

⇔ x = 180/9 = 20

7 0
4 years ago
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