3 years ago

Help with #4 please.

Mathematics

2 answers:

Harlamova29_29 [7]3 years ago

8 0

The Answer would be B

mojhsa [17]3 years ago

5 0

The answer would be B

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Simplify the expression x + 2 (x - 4)

Zielflug [23.3K]

1. Distribute
$2*x$ and $2*-4$

2. (After distributing)
$x+2x-4$

3. Now combine the like terms.
$3x-4$

Answer: $3x-4$ *Best viewed on the brainly site brainly.com/question/6077262*

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A man buys lemons at 3 for Rs. 5 and an equal number at 2 for Rs. 4. He mixes them and sells at 5 for Rs. 9. Find his gain or lo

melamori03 [73]

3 lemons cost = Rs. 5

Each lemon cost = Rs. 5/3

2 lemons Cost = Rs. 4

Each lemon cost =

$= \frac{4}{2} = \frac{2}{1} = 2$

Total Cost price of Each lemon =

$\frac{5}{3} + \frac{2}{1}$

LCM = 3

$\frac{5}{3} + \frac{2 \times 3}{1 \times 3} = \frac{6}{3} = \frac{5 + 6}{3} = \frac{11}{3}$

Each lemon Cost =

$= \frac{11}{3} \div \frac{2}{1}$

$= \frac{11}{3} \times \frac{1}{2}$

$= \frac{11}{6}$

Selling price of 5 lemons = 9

Selling price of 1 lemon = 9/5

$loss\% = \frac{loss \times 100}{CP}$

$= \frac{ \frac{4}{6} - \frac{9}{5} \times 100 }{ \frac{11}{6} }$

$= \frac{\frac{55 - 54}{30} \times 100}{ \frac{11}{6} }$

$= \frac{\frac{1}{30} \times 100}{ \frac{11}{6} }$

$= \frac{100}{30} \times \frac{6}{11}$

$= \frac{20}{1} = 1 \frac{9}{11} \% \: loss$

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3 years ago

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Write an inequality to model the situation.<br><br><br> A number exceeds 21

mezya [45]

It could be x > 21 im not sure

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3 years ago

Help fast pls. Need it due fast

Gelneren [198K]

3x+8=5x-1
3x-5x=-1-8
-2x=-9
x=4,5

AM=3x4,5+8=21,5
MB=5x4,5-1=21,5
AB=AM+MB
AB=21,5+21,5=43

6 0

3 years ago

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