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3 years ago

ANSWER AS MANY AS POSSIBLE! I WILL MARK BRAINLIEST!!!

Mathematics

2 answers:

kodGreya [7K]3 years ago

7 0

Answer:

88c = -300

105c = 81300

105b = 294

Step-by-step explanation:

ehidna [41]3 years ago

4 0

Answer:

The second one is 81300, The third one is 294

Step-by-step explanation:

Question 2

x*5*25*4/5, if x = 813

813*5*25*4/5

4065*25*4/5

101625*4/5

406500/5

81300

Question 3

3(x + 9) - 2(x + 4), if x = 275

3(275 + 9) - 2(275 + 4)

3(284) - 2(279)

852 - 558

294

The third and the fourth picture are the same problem, right?

Hope this helped you!!

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$c_{r} = x\cdot c_{a} +(1-x)\cdot c_{b}$ (1)

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$x$ - Proportion of the paint that is 30 % gloss.
$c_{a}$ - Concentration ratio of the paint that is 30 % gloss.
$c_{b}$ - Concentration ratio of the paint that is 15 % gloss.
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$V_{b} = V-V_{a}$

$V_{b} = 3.75\,gal-1.238\,gal$

$V_{b} = 2..512\,gal$

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To learn more on weighted averages, we kindly invite to check this question: brainly.com/question/18554478

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