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4 years ago

It took 3/4h to complete 1game of cards.How many games can be completed 2 1/4h?

1 answer:

Crank4 years ago

7 0

I would prefer to solve this in a decimal form
I will show this to u in 2 ways
1:.75::X:2.25
(1*2.25)/.75x
2.25/.75x
X=3

2.25/.75=3
when we divide the number of hours played by hors for one game we get the number of games that could be played

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Solve using the quadratic formula:

timurjin [86]

Answer:

$\boxed{x_1 = \frac{7 + \sqrt{5} }{2} ~~or~~x_2 = \frac{7 - \sqrt{5} }{2} }$

Step-by-step explanation:

$x^2 - 7x + 11 = 0$

$x^2 - 7x = -11$

$(x - \frac{7}{2} )^2 - \frac{49}{4} = -11$

$(x - \frac{7}{2} )^2 = -11 + \frac{49}{4}$

$(x - \frac{7}{2} )^2 = \frac{5}{4}$

$x - \frac{7}{2} = \pm \sqrt{\frac{5}{4}}$

$x = \frac{7 \pm \sqrt{5} }{2}$

3 0

3 years ago

If 2x + 8 = 0, what justifies 2(x + 4) = 0?

musickatia [10]

Answer:

2(x+4)=0

2x+8=0

8-0=2x

8/2=x

4=x

x=4

7 0

3 years ago

What is the remainder when 3 is synthetically divided into the polynomial -x^2+5x-9

Maurinko [17]

-3 is the remainder when you synthetically divide

8 0

3 years ago

Read 2 more answers

Someone help and please make sure the answer is right! :)

TEA [102]

Answer:

Step-by-step explanation:

180-51-45=84

I think this would be the answer since triangles add up to be 84 and we are just finding the last missing angle.

hope this helps :)

8 0

3 years ago

Read 2 more answers

Is 12cm greater than less than or equal to 98mm

dmitriy555 [2]

There are 10 millimeters in a centimeter, so to find the amount of centimeters that 98mm is equal to, you do this:

98/10 = 9.8

9.8 is a smaller number than 12, so your answer is greater.

4 0

4 years ago