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3 years ago

What is the slope?

Mathematics

2 answers:

Alex Ar [27]3 years ago

7 0

Answer:

slope of 1/4

Step-by-step explanation:

slope formula= y2-y1/x2-x1

coordinates i chose: (0,60) (40,70)

70-60/40-0=10/40=1/4

therefore slope of 1/4

hope this helps, also what grade is this problem

yanalaym [24]3 years ago

3 0

Answer:

It is a slope of 1/4

Step-by-step explanation:

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Sally can paint the wall in 54 minutes. If Sally and Ethan work together, they can paint the wall in 36 minutes. How much time d

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Answer:

$108\ minutes$

Step-by-step explanation:

1) we know that

Sally can paint the wall in 54 minutes

The 100% of the wall ------> she can paint in 54 minutes

by proportion

calculate how much is the percent of the work in 36 minutes

$\frac{100\%}{54} =\frac{x\%}{36}\\ \\x=36*100/54\\ \\x=66.67\%$

That means

Sally in 36 minutes can paint the 66.67% of the wall

2) Sally and Ethan work together, they can paint the wall in 36 minutes

Ethan in 36 minutes can paint (100%-66.67%)=33.33%

by proportion

Calculate how much time does it take for Ethan to paint the wall by herself

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3 years ago

Jamal has 63 photos on his phone. He has enough storage space for 128 photos

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Answer:

Step-by-step explanation:

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one of the same side exterior angles of two parallel lines is 20 degrees less than the other same side exterior angle find the m

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3 years ago

(2x2 – 18)(x+3)(2 – 3) = 2x4 – 36x2 + 162

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Given the distribution :

Poor ___ Acceptable ____ Excellent

0.25 _____ 0.6 _________ 0.15

The data scientist receives three items produced by the manufacturing process.

Find the chance that:

a. all of items are Acceptable

0.6 * 0.6 * 0.6 = 0.6^3 = 0.214

b. none of the items is Acceptable

P(not acceptable) = 1 - p(acceptable) = 1 - 0.6 = 0.4

0.4 * 0.4 * 0.4 = 0.4^3 = 0.064

c. at least one of the items is Excellent

P(atleast one) = 1 - P(none)

P(not excellent) = 1 - 0.15 = 0.85

P(none is excellent) = 0.85^3 = 0.614125

Hence,

P(atleast one is excellent) = 1 - 0.614125 = 0.3859

d. not all of the items are Excellent

P(not all) = 1 - p(All)

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P(not all are excellent) = 1 - 0.003375 = 0.9966

e. there is one item of each class:

P(poor) * p(acceptable) * p(excellent) * (number of classes)!

0.25 * 0.6 * 0.15 * 3!

= 0.135

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3 years ago