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sattari [20]
3 years ago
13

Franco played computer chess for 3 hours. Lian played computer chess for 150 minutes. Compare the times spent playing computer c

hess. Complete the sentence. __ played for __ longer than __ .
Mathematics
2 answers:
goldenfox [79]3 years ago
3 0
Franco played for 30 minutes longer than Lian.
DerKrebs [107]3 years ago
3 0
For this, lets convert 3 hours into minutes

3hours=180 minutes

Since 180 is more than 150, Franco played the longest

180-150=30

So Franco played for 30 minutes longer than Lian
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Abby is adopting kittens from the pet store. if there are 18 kittens, how many ways can she choose 2 kittens? **the answer isnt
Arturiano [62]

Answer:

153 ways.

Step-by-step explanation:

The answer is the number of combinations of 2 from 18

= 18! / 2! (18-2)!

= 18! / 2! 16!

= 18*17*16! / 2! 16!

= 18 * 17 / 2*1

= 9 * 17

= 153 ways.

7 0
4 years ago
Tell weather the lines for each pair of equations are parallel perpendicular or neither y=-1/5x+6
FinnZ [79.3K]

Answer:

The slopes are neither perpendicular nor parallel.

Step-by-step explanation:

First we are going to find the slope-inercept form from the equation, -2x + 10y = 5.

Solve for y.

-2x + 10y = 5

<u>+2x. =</u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>+2x</u>

10y = 2x + 5

\begin{gathered} \frac{10y}{10} = \frac{2x + 5}{10} \\ y = \frac{1}{5}x + \frac{1}{2} \end{gathered}

So we now have

\begin{gathered}y = \frac{1}{5}x + \frac{1}{2} \\ and \\ y = -  \frac{1}{5} x + 6 \end{gathered}

Looking at the equation above, the slopes are neither perpendicular nor parallel.

5 0
3 years ago
What expression is equal to 5/8?<br> pls help!
ehidna [41]

Answer:

10/16; 15/24; etc

Step-by-step explanation:

if u multiply any fraction, both parts of it by the same number, ull get an equal expression. so, for example, 5*2/8*2=10/16=5/8

8 0
3 years ago
Help on question 2 please :/
irakobra [83]
40% is close to 50% which is = to 1/2
So just divide 60 by 2. which would be around 30

this is the best way i could explain, I hope this helps
8 0
3 years ago
Read 2 more answers
a passenger elevator in the sears tower in chicago can lift people 960 feet in 1 minute and 30 seconds. How fast must the freigh
OleMash [197]
Given that a<span> passenger elevator in the sears tower in Chicago can lift people 960 feet in 1 minute and 30 seconds (1.5 minutes). This means that the lift is travelling with a speed of:

</span>speed= \frac{distance}{time} = \frac{960}{1.5} =640ft/min
<span>
If the elevator lifts cargo through the same height in 2 minutes and 30 seconds (2.5 minutes), then the speed is given by:

</span>speed= \frac{960}{2.5} =384ft/min<span>
</span>
3 0
4 years ago
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