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abruzzese [7]
4 years ago
15

1 2/5 x 1 1/4 simplify as much as possible right answer as a mixed number pls

Mathematics
1 answer:
Olenka [21]4 years ago
5 0

7/5 x 5/4
= 1 3/4
One and three fourths
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Problem 2.9 a runner completes the 200-meter dash with a time of 20.19 seconds. part a what was the runner's average speed in me
Elina [12.6K]

Answer:

Average speed = 9.91 m/s

Explanation :

Total distance covered by a runner = 200 m

Time taken to complete this distance = 20.19 sec

We need to find the average of runner speed in meter/sec

We use the speed,  distance, time formula

speed = \frac{distance}{time}

speed = \frac{200}{20.19}

Average speed = 9.91 m/s

that's the final answer.

I hope it will help you.



8 0
3 years ago
Show how to use the greatest common factor of 84 and 72 to rewrite 84m - 72n as a product of two factors
slamgirl [31]

Answer:

The simplified expression is: 12(7m - 6n)

Step-by-step explanation:

Greatest common factor between 84 and 72

We keep dividing 84 and 72, while they can be divided by the same factor. So

84 - 72| 2

42 - 36|2

21 - 18|3

7 - 6

So the greatest common factor is 2*2*3 = 12.

Rewrite 84m - 72n as a product of two factors

Evidencing 12

84m - 72n = 12(\frac{84m}{12} - \frac{72n}{12}) = 12(7m - 6n)

6 0
3 years ago
Christian collects baseball cards. He has 8 fewer than twice as many Terkuma cards as Seun cards. He has three times as many Chu
aleksandrvk [35]
I think Terkuma has 100 cards
4 0
4 years ago
Can y’all help me out here ?
frosja888 [35]

Answer:

25°

Step-by-step explanation:

ACE + BCE = 180

Since sum of angles on a straight line equals 180°

(2x+2)+(5x+3)=180

7x+5=180

7x=175

x= 25°

7 0
3 years ago
A jeweler has 5 rings, each weighing 18 g, made of an alloy of 10% silver and 90% gold. she decides to melt down the rings and a
ankoles [38]
Silver = 10%
Gold = 90%

Amount of gold to be deducted
90/100 × 18 = 16.2 g

75/100 × 18 = 13.5

16.2 - 13.5 = 2.7

Amount o silver to added.
  2.7 × 5 = 13.5


Answer = 13.5 g

7 0
3 years ago
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