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kodGreya [7K]
3 years ago
11

Pls help i give u brainliest amd 5 stars​

Mathematics
1 answer:
mash [69]3 years ago
8 0

Answer:

52.5

Step-by-step explanation:

30-18=12 left

18 x 9 = 162

12/2=6

3 x 13.5 = 40.5

162+40.5=202.5

202.5-150= 52.5 euros profit

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help this is hard Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s
Nesterboy [21]

Answer:

x = -\frac{3}{b}

x = -1

Step-by-step explanation:

The given equation is,

-2(bx - 5) = 16

Dividing by (-2) on both sides of the equation,

\frac{-2(bx-5)}{(-2)}=\frac{16}{(-2)}

(bx - 5) = -8

By adding 5 on both the sides of the equation,

(bx - 5) + 5 = -8 + 5

bx = -3

Dividing by 'b' on both the sides of the equation,

\frac{bx}{b}=\frac{-3}{b}

x = -\frac{3}{b}

If b = 3,

x = -\frac{3}{3}

x = -1

6 0
2 years ago
The common ratio of a geometric series is \dfrac14 4 1 ​ start fraction, 1, divided by, 4, end fraction and the sum of the first
myrzilka [38]

Answer:

The common ratio of a geometric series is \dfrac14

4

1 ​

start fraction, 1, divided by, 4, end fraction and the sum of the first 4 terms is 170

The first term is 128

Step-by-step explanation:

The common ratio of the geometric series is given as:

r =  \frac{1}{4}

The sum of the first 4 term is 170.

The sum of first n terms of a geometric sequence is given b;

s_n=\frac{a_1(1-r^n)}{1-r}

common ratio, n=4 and equate to 170.

\frac{a_1(1-( \frac{1}{4} )^4)}{1- \frac{1}{4} } = 170

\frac{a_1(1- \frac{1}{256} )}{ \frac{3}{4} } = 170\\\\ \frac{255}{256} a_1 = \frac{3}{4}  \times 170\\\\\frac{255}{256} a_1 = \frac{255}{2}  \\\\\frac{1}{256} a_1 = \frac{1}{2}  \\\\ a_1 = \frac{1}{2}   \times 256\\\\a_1 = \frac{1}{2}   \times 256 \\\\= 128

8 0
3 years ago
3y-3y+4x please help
yulyashka [42]

Answer:4x

Step-by-step explanation:

6 0
2 years ago
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Pleaseeeeeeeee help me
wlad13 [49]
The answer is OH and IH
3 0
3 years ago
Read 2 more answers
A school has 825 students and 55 teachers how many students are there per teacher
barxatty [35]
15 divide 825 by 55 and your answer is 15 i thank
4 0
3 years ago
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