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2 years ago

15

Students record the number of minutes they read each day. The box plot shows the sumary of the results. Which statement best des

cribes the data?

2 answers:

devlian [24]2 years ago

8 0

Number of minutes i think

Novosadov [1.4K]2 years ago

3 0

^^yeah the number of minutes they read

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The local newspaper has letters to the editor from 60 people. If this number represents 5% of all of

uysha [10]

The newspaper has 1200 readers because if 60 people is only 5%

if you divide 95 by 5 it is 19. 19 times 60 equals 1140. 1140 plus 60 equals 1200. 5% of 1200 is 60.

7 0

2 years ago

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Andrea, Justin, and Virginia went to an office supply store. Andrea bought 6 pencils, 7 markers, and 8 erasers. Her total was $1

olga2289 [7]

Answer:

$x=0.25\,,\,y=1.75\,,\,z=0.25$

Step-by-step explanation:

Let $x,y,z$ denotes number of pencils, markers, erasers respectively.

For Andrea:

$6x+7y+8z=15.75\,\,\,(i)$

For Justin:

$6x+8y+5z=16.75\,\,\,(ii)$

For Virginia:

$5x+5y+7z=11.75\,\,\,(iii)$

On subtracting equations (i) and (ii), we get

$(6x+7y+8z)-(6x+8y+5z)=15.75-16.75\\-y+3z=-1\\y-3z=1\\y=1+3z$

Put $y=1+3z$ in equation (i)

$6x+7(1+3z)+8z=15.75\\6x+29z=8.75\,\,\,(iv)$

Put $y=1+3z$ in equation (iii)

$5x+5(1+3z)+7z=11.75\\5x+22z=6.75\,\,\,(v)$

Multiply equation (iv) by 5 and equation (v) by 6 and then subtract both the equations.

$5(6x+29z)-6(5x+22z)=5(8.75)-6(6.75)\\13z=3.25\\z=\frac{3.25}{13}=0.25$

Put $z=0.25$ in equation $y=1+3z$

$y=1+3(0.25)=1.75$

Put $y=1.75\,,\,z=0.25$ in equation (i)

$6x+7(1.75)+8(0.25)=15.75\\6x+12.25+2=15.75\\6x=1.5\\x=0.25$

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3 years ago

Please help me with this!!!!

Crazy boy [7]

Answer:

The answer is C

Step-by-step explanation:

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2 years ago

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Misha used 1/4 of a carton of 12 eggs to make a omelet how many eggs did she use

Dmitrij [34]

Answer: 3

Step-by-step explanation:

Multiply 1/4*12

Or divide 12 into 4 parts

Either way, you get 3

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2 years ago

First to answer gets brainliest

skad [1K]

Answer:

Step-by-step explanation:

Because you can't do -x+1 so it would be (1,0) and then you have x^2 +3x-4 which is (-5,6)

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2 years ago