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Afina-wow [57]
3 years ago
11

Hi i kinda stuck on this question. Help please. Workings Please​

Mathematics
1 answer:
egoroff_w [7]3 years ago
3 0

Answer:

D. 4m^{2}

Step-by-step explanation:

First find the area of 1 tile

= length * breadth

= 8 * 5

= 40cm^{2}= 40/10000 = 0.004

no. of tiles= 1000

therefore, total area of 1000 tiles = area of room= 1000*0.004

=4m^{2}

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Step-by-step explanation:

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yawa3891 [41]

Answer:

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3 years ago
It takes Kay 20 minutes to drive to work traveiling 45 mph. Two minutes after she left home this morning, her husband, Dan, star
BARSIC [14]

Answer:

Kay's husband drove at a speed of 50 mph

Step-by-step explanation:

This is a problem of simple motion.

First of all we must calculate how far Kay traveled to her job, and then estimate the speed with which her husband traveled later.

d=vt

v=45 mph

t= 20 minutes/60 min/hour = 0.333 h (to be consistent with the units)

d= 45mph*0.333h= 15 miles

If Kay took 20 minutes to get to work and her husband left home two minutes after her and they both arrived at the same time, it means he took 18 minutes to travel the same distance.

To calculate the speed with which Kate's husband made the tour, we will use the same initial formula and isolate the value of "V"

d=vt; so

v=\frac{d}{t}

d= 15 miles

t= 18 minutes/60 min/hour = 0.30 h  (to be consistent with the units)

v=\frac{d}{t}=\frac{15 miles}{0.3 h}=50mph

Kay's husband drove at a speed of 50 mph

8 0
3 years ago
Need help on C and D, please help.
Mekhanik [1.2K]
C. 1/5,2/5,3/5,4/5 and 1 since all will be on the same mark as 2/10,4/10,6/10,8/10 and 10/10.
d. there would be 10/10 for every  0 to 2.
6 0
3 years ago
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