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Zarrin [17]
3 years ago
12

Plz help math

Mathematics
1 answer:
Fantom [35]3 years ago
5 0
The answer is B. 0.000000849

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Eight times the sum of a number and -2 is the same as nine times the number. Find the number
Alik [6]

Answer:

let \: the \: unknown \: number \: be \: x \\ 8 (x +  (- 2) = 9 \times x \\ 8  (x - 2) = 9 \times x \\ 8x - 16 = 9x \\  - 16 = 9x - 8x \\  - 16 = x \\ x =  - 16

5 0
3 years ago
1. 27 marbles are shared between some children. Each child recieves six marbles and there are three marbles left over. How many
vova2212 [387]
1. 27 - 3 (because 3 are left over) = 24. Then, 24 ÷ 6 = 4 children. 

2. If Mina has £7.20, that means she has 720 pence. If half is given to her brother, then she has £3.60 left. (720 ÷ 2 = 360 pence, which is £3.60) 

3. 17 × 10 = 170
2 × 20 = 40
170 + 40 = 210, which is £2.10 

5 0
3 years ago
Which ratio is equivalent to 8:6
dybincka [34]

Answer:

4:3

Step-by-step explanation:

You divide 8 and 6 by 2 to simplify it

8 0
3 years ago
Find the slope of<br> (14, 8) and (7, -6)
maksim [4K]

Answer:

The Slope = 2

Explanation:

Slope : Δy/Δx = 2/1 = 2

5 0
3 years ago
If you are trying to conduct an experiment by taking a random sample of home owners, which of the groups below should NOT be inc
Artemon [7]

Answer:

A & D for sure. Probably B

Step-by-step explanation:

Students don't own their homes. Homeowners in your neighborhood might not meet the definition of Random.

3 0
3 years ago
Read 2 more answers
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