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igor_vitrenko [27]
3 years ago
15

The teacher plans to buy pillowcases for his students. Each student needs 55 cm of material and there are 83 students. how many

does the teacher need to buy for his students ??? ​
Mathematics
1 answer:
laiz [17]3 years ago
5 0

Answer:

4565 cm

Step-by-step explanation:

55 * 83

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Simplify 3×+1(2×-1)2-1(6×)​
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Answer =   \boxed {x - 2}

3x +1(2x-1)2-1(6x)

= \boxed {3x + 1 . ( 2x - 1 ) . 2 - 1 (6x) = x - 2}

Steps :

3x + 1 . (2x - 1) . 2 - 1 . (6x)

Remove the parentheses : (a) = a

= 3x + 1 * (2x- 1) * 2 - 1 * 6x

Multiply the numbers : 1 * 2 = 2

= 3x + 2 ( 2x - 1 ) * 6x

Multiply the numbers : 1 * 6 = 6

= 3x + 2 ( 2x - 1 ) -6x

Expand: 2 (2x - 1) :   4x - 2

2 ( 2x - 1 )

Apply the distributive law : a (b - c) = ab - ac

a = 2, b = 2x, c = 1 \\= 2 * 2x - 2 * 1

Simplify 2 * 2x - 2 * 1 : 4x - 2

= = 4x - 2

= 3x + 4x - 2 - 6x

Simplify 3x + 4x - 2 - 6x : x - 2

= x - 2

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Have a great day/night!

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Clive and Erica both have part-time jobs where they get paid by the hour. Erica makes more than Clive. The number of dollars, dd
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<em>Missing Options:</em>

<em>A. Erica's graph is incorrect, because the slope  should be greater than 9.5. </em>

<em>B. Erica's graph is incorrect, because the y-intercept should be greater than 9.5. </em>

<em>C. Erica's graph is correct, because the slope  should be less than 9.5. </em>

<em>D. Erica's graph is correct, because the y–intercept  should be less than 9.5.</em>

<em></em>

Answer:

A. Erica's graph is incorrect, because the slope  should be greater than 9.5.

Step-by-step explanation:

Given

Clive:

d = 9.5h

Erica:

m = 9 --- slope

b =0 --- y intercept

First, we need to determine the equation of Erica's earnings using

d = mh + b

Where

m = slope = 9

b = y intercept = 0

So, the equation becomes

d = 9 * h + 0

d = 9h + 0

d = 9h

This implies that Erica earns 9 dollars per hour

For Clive:

d = 9.5h

This means that Clive earns 9.5 dollars per hour

From the question, we understand that Erica earns more than Clive.

<em>So, we can conclude that Erica's graph is incorrect because the slope must be greater than 9.5.</em>

<em>When the slope is greater than 9.5, then she earns  more than Clive.</em>

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Answer:

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Step-by-step explanation:

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