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Ira Lisetskai [31]

2 years ago

13

hal is downloading a file from the internet. so far he has downloaded 25% of the file. if 10 minutes has passed since he started

. how long will it take to download the rest of the file?

1 answer:

vfiekz [6]2 years ago

5 0

Answer:

it should take him 30 minutes to complete the download

I hope this helps! <3

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Given that p=x^2-y^2/x^2+xy

Nataly [62]

Answer:

p = - $\frac{1}{2}$

Step-by-step explanation:

Given

p = $\frac{x^2-y^2}{x^2+xy}$ ( factorise numerator and denominator )

x² - y² ← is a difference of squares and factors as (x - y)(x + y)

x² + xy ← factor out x from each term

= x(x + y) , thus

p = $\frac{(x-y)(x+y)}{x(x+y)}$ ← cancel (x + y) on numerator/ denominator

= $\frac{x-y}{x}$ ← substitute x = - 4, y = - 6

= $\frac{-4-(-6)}{-4}$

= $\frac{-4+6}{-4}$

= $\frac{2}{-4}$ = - $\frac{1}{2}$

6 0

3 years ago

Friday, a store sold 10 blue shirts and 20 white shirts. what percentage of the shirts sold were blue? give answer to the ones p

jasenka [17]

Answer:

10+20=30

10 is what percent of 30?

10 is 1/3 of 30

Step-by-step explanation:

10 is 33.33% of 30

so 33% of the shirts sold were blue

6 0

3 years ago

Hue is arranging chairs. She can form 5 rows of a given length with 2 chairs left over, or 7 rows of that same length if she get

Andru [333]

I just took the 16 chairs and added 2 since thats how many are left over, then since adding these 16 chairs, you are creating 2 more rows, so (16+2)/2 =9 Therefore, each row must have nine chairs in it and Hue starts off with 5x9+2= 47 chairs

4 0

3 years ago

X^2+14x-15=0 solve by completing square<br>

Softa [21]

Answer:

${x}^{2} + 14x - 15 = 0 \\ {x}^{2} - x + 15x -15 = 0 \\ x(x - 1) + 15(x - 1) = 0 \\ (x - 1)(x + 15) = 0 \\ \boxed{x = 1} \\ \boxed{x = - 15}$

<h3><u>x=1 and x=</u><u>-</u><u>15</u> is the right answer.</h3>

7 0

3 years ago

Can someone answer these please

grandymaker [24]

Answer:

Step-by-step explanation:

A. 3.11

B.7.5

C.6.46

D.133.17

4 0

3 years ago