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Viktor [21]
3 years ago
10

First answer get best marks ​

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
8 0

Answer:

The three expressions are the first option, the third option, and the forth option

Step-by-step explanation:

I don't really know how to explain my math lol but I solved 5(1/3x+7)-3(1/2x-), and got x, and plugged in x to the equation. I got my answer, and plugged in x to the rest of the equations and the first one, third one, and fourth ones were the ones that had equal answers. You may want to check my math though because i am not the best but that is what I got.

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Sally has seventy dollars to spend on eight books. After buying them she had thirteen dollars. How much did each book cost?
Anit [1.1K]

Answer:

7.13 each

Step-by-step explanation:

70 - 13 = 57. Divide 57/8 and get your answer

(7.125 rounded is 7.13)

5 0
3 years ago
Read 2 more answers
Given: x + 2y = -6.
wel

very positive about these results

4 0
3 years ago
What does the 3 represent in 3(20 15)?
Andre45 [30]
Depending on what you're supposed to do, the three could either mean to distribute it into the equation, giving you
either
(3*2015) or (3*20)*(3*15) or (3*20) +/- (3*15)

Or an example of factoring where they took 3 out of 60 and 45.

There are no instruction on what to do in this question.
4 0
3 years ago
6) 2/3 is this a integer, whole number, or a rational number.​
AlekseyPX

Answer:

rational number

Step-by-step explanation:

8 0
3 years ago
100pts Help rounding!
Semmy [17]

Answer:

5

Step-by-step explanation:

5 158/559

= 5 + 158/559

= 5 + 0.28264758

= 5.28264758

= 5 (rounded to nearest whole number)

4 0
2 years ago
Read 2 more answers
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