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Harlamova29_29 [7]
3 years ago
14

Please hurry!! Steven and Dan like to play a lot of video games. On Sunday, Dan played 4 fewer than twice the number of hours th

at Steven played. They played a total of 17 hours on Sunday. Which system of equations models this situation if Steven played s hours and Dan played d hours?
A) d=4-2s s+d=17

B) s=2d-4 s=17-d

C)d=2s-4 s+d=17

D)s=4-2d d=17-s
Mathematics
2 answers:
Leviafan [203]3 years ago
4 0

Answer:i think A or C

Step-by-step explanation:

i'm not sure about my answer but i chose C and i don't know if i got it wrong or right but its either both of them i hope this helps.

madam [21]3 years ago
3 0

Answer

Step-by-step explanation:

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4/? = ?/ 9
svet-max [94.6K]

Set ? as x, and cross-multiply.

so x^2= 36

x = 6 or x = -6

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If mike read 30 pages an hour how long will it take him to read 1225 pages
Gnesinka [82]

Answer: 2450 min or 40hr and 50 min

Step-by-step explanation:

We can use a proportion to set up this equation.

\frac{30 pages}{60 min} =\frac{1225 pages}{x min}

We cross muliply so get our equation.

30x=1225(60)\\

30x=73500

x=2450 min

It took Mike 2450 min to read 1225 pages. We can also use a proportion to write this in hours

\frac{60min}{1hr} =\frac{2450min}{x }

60x=2450

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3 years ago
PLLLLSSSSSSS HELP ME !!!!!!!???????
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Answer:

Step-by-step explanation:

because -3 is a zero, so x=-3

(k-1)(-3)²+k(-3)+1=0

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(B)

∵ x=-1 is a zero of p(x)=kx²-4x+k

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3 years ago
PLEASE HURRY I WILL DO ANYTHING (not anything but give brain list)
Sergeeva-Olga [200]

The cost of the sheets is less for the second example, the second example is the better deal.

Consider the first example:

Here, A brand of sheets is on sale for “Buy one get one at 50% off”. If each sheet costs $18.00.

So, the value of the first sheet will be $18,

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That is it will be half of the original value

= 50/100 * 18

=9

Therefore, the cost of two sheets

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So, Six sheets will cost

=$27+$27+$27

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In the second example sheets are 30% off.

So, 30% of 18

= $6.

Subtract that value from 18 and you will get $12.

So, cost of one sheet =  $12.

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=  $12×6

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