Sam can prepared 20 wall painting in four weeks. How much time will he need to prepare 80 wall painting?

Mathematics

2 answers:

Mila [183]3 years ago

5 0

80/20=4. 4x4=16. 16 weeks for an 80 wall painting

SOVA2 [1]3 years ago

5 0

It will take 16 weeks, I know this because 80 times 4 equals 320 and 320 divided by 20 equals 16.

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Katyanochek1 [597]

Answer:

520 m

Step-by-step explanation:

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200 + 60 + 60 + 200 = 520 m

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2 years ago

The sail of a boat is in the shape of a right triangle, as shown below:

dolphi86 [110]

Answer: Choice C
7 divided by cosec 50 degrees

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Explanation:

Abbreviations:
sec = secant
cot = cotangent
cosec = cosecant (csc is also a widely used abbreviation)

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Let the horizontal leg be x

This leg is opposite the angle 50 degrees. The hypotenuse is 7

Opposite = x
Hypotenuse = 7

We'll either use the sine rule or the cosecant (csc) rule
sine = opposite/hypotenuse
cosecant = hypotenuse/opposite

Since "sine" is nowhere to be found in the answer choices, we'll use the cosecant rule

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cosecant = hypotenuse/opposite
csc(angle) = hypotenuse/opposite
csc(50) = 7/x
x*csc(50) = 7
x = 7/csc(50)

This is why the answer is choice C

6 0

2 years ago

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Answer:

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Answer: $\textsf{y = -1.75x - 11.75}$

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