3 years ago

A large concrete mixing machine can mix a certain amount of concede in 12 hours, while a smallet one can mix

Mathematics

1 answer:

Andrews [41]3 years ago

5 0

Answer:

[(1/12)(5/5) + (1/20)(3/3)](x hours) = 1

(5/60 + 3/60)x = 1

(8/60)x = 1 we can reduce 8/60 by dividing out a 4

(2/15)x = 1 x both sides by 15/2

x = 15/2

x = 7 1/2 or 7.5 hours

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Which of the following equations describe the line shown below? Check all that apply.

WITCHER [35]

Here, first we need to calculate the slope of the line,
Here, Coordinates = (-6, 2) (-1, -4)
m = y2 - y1 / x2-x1
m = 2 + 4 / -6 + 1
m = 6/-5
m = -6/5

Now, Take first coordinate: y - 2 = -6/5 (x + 6)
Second coordinate: y + 4 = -6/5 (x + 1)

In short, Your Answers would be Option C & D

Hope this helps!

6 0

3 years ago

An inequality is shown. 3 8 Which values of x make the inequality true?

alisha [4.7K]

Answer:

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