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3 years ago

Please answer number 8 8 don't understand

Mathematics

1 answer:

kumpel [21]3 years ago

4 0

Where's number 8.......

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Write an expression that is equivalent to 3y − 9.

dybincka [34]

Answer:

3(y-3)

Step-by-step explanation:

just factor out the greatest common factor

7 0

3 years ago

Janet made 75 more cookies to sell at the

UNO [17]

Answer:

200

Step-by-step explanation:

Janet = x + 75

Kathy = x

2x + 75 = 325

2x = 325 - 75

2x = 250

x/Kathy = 125

x + 75/Janet = 125 + 75

= 200

4 0

3 years ago

PLEASE HELP FAST NO WRONG ANSWERS

liberstina [14]

Answer:

Option D.

Step-by-step explanation:

Segment VW is intersected by planes XUV and SRV

4 0

3 years ago

Read 2 more answers

1/b+x=3b/2x^2 - 1/x<br>btw ^2 means square<br><br>

AlekseyPX

Answer:

$x = \frac{ - 3b}{4} \: or \: b$

Step-by-step explanation:

$\frac{1}{b + x} = \frac{3b}{2 {x}^{2} } - \frac{1}{x}$

$= > \frac{1}{b + x} = \frac{3b - 2x}{2 {x}^{2} }$

$= > 2 {x}^{2} = (b + x)(3b - 2x)$

$= > 2 {x}^{2} = 3 {b}^{2} - 2bx + 3bx - 2 {x}^{2}$

$= > 2 {b}^{2} = 3 {b}^{2} + bx - 2 {x}^{2}$

$= > 3 {b}^{2} + bx - 4 {x}^{2} = 0$

$= > 3 {b}^{2} + 4bx - 3bx - 4 {x}^{2} = 0$

$= > b(3b + 4x) - x(3b + 4x) = 0$

$= > (3b + 4x)(b - x) = 0$

Hence,

$x = \frac{ - 3b}{4} \: or \: b$

8 0

3 years ago

Divide R4 625 amongst Andrew, Brendan, and Clair so that for every R4 that

cestrela7 [59]

Using proportions, it is found that:

Andrew gets R 1850.

Each of Brendan and Clair get R 1387.5.

<h3>What is a proportion?</h3>

A proportion is a fraction of total amount.

In this problem, the total amount divided is R 4625.

For every R4 Andrew gets, both Brendan and Clair gets R3, hence the ratio is 4:3:3, which means that:

Andrew gets $\frac{4}{4 + 3 + 3} = \frac{4}{10} = 0.4$ of the total amount.

Brendan gets $\frac{3}{4 + 3 + 3} = \frac{3}{10} = 0.3$ of the total amount.

Clair gets $\frac{3}{4 + 3 + 3} = \frac{3}{10} = 0.3$ of the total amount.

Then:

$A = 0.4(4625) = 1850$

$B = C = 0.3(4625) = 1387.5$

Hence:

Andrew gets R 1850.

Each of Brendan and Clair get R 1387.5.

You can learn more about proportions at brainly.com/question/24372153

4 0

2 years ago