Question

Two students, Student 1 and Student 2, did a hands-on mining exercise with cookies to compare the total cost of mining in two different land areas using different equipment. The table below shows the costs of land, equipment, mining, and reclamation for the two students.


Students Cost of land Cost of equipment Cost of mining and reclamation Time taken to mine the area
1 $5 $2 $2.00 per minute 5 minutes
2 $4 ? $2.00 per minute 6 minutes

If the sum of the total mining costs for Student 1 and Student 2 is $40, what is the cost of equipment for Student 2?
$4.00
$6.00
$7.00
$9.00

Answer 1

@Nnesha @Notamathgenius @natsent06 @nechirwan @NicholausBlackmon @mathmath333 @Natasha.g.2013 @Miracrown @MAli13chineta @Michele_Laino @mickyboy0202 @markchernioglo @itsbribro @uri @Unstoppable98

Answer 2

this is what i need help

Answer 3

C

Answer 4

7

Answer 5

is not is 9

Answer 6

how?

Answer 7

i dont know can u help me in aother one

Answer 8

damn......i see what i did wrong

Answer 9

im so sorry dude

Answer 10

why are u sorry

Answer 11

what grade are uin

Answer 12

because i got it wrong

Answer 13

ohhh dont worry do what was it if u know it if not that okay

Answer 14

10th but i take calculus

Answer 15

cool

Answer 16

yep