Answer:
200 tiles
Step-by-step explanation:
area of the floor = 2m×4m
the tile=20cm×20cm
the tiles needed to complete the job will be
2m×4m
——–—–
20cm×20cm
change the meters to centimeters
200cm×400cm
————————
20cm×20cm
therefore the answer is 200tiles.
The lowest score you can earn on the next test and still achieve an average of at least an 88 is 107
<h3>Mean of data</h3>
Mean is the average of numbers.
Mean = sum of data/sample size
Let the lowest score be "x" such that;
Mean = 74+78+90+91+x/5
88 = 74+78+90+91+x/5
88(5) = 74+78+90+91+x
440 = 74+78+90+91+x
440 = 333 + x
x = 440 - 333
x = 107
Hence the lowest score you can earn on the next test and still achieve an average of at least an 88 is 107
Learn more on mean here: brainly.com/question/20118982
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The measure is 61 degrees
If square roots includes exponents then that one is first. but if not then it is division.
Answer:
28 miles in 1.4 hours in the city
Step-by-step explanation:
<u>On the highway:</u>
Time 
hours
Rate = 45 mph
Distance 
miles
<u>In the city:</u>
Time 
hours
Rate = 20 mph
Distance 
miles
The trip was 100 miles long, then
Distance on the highway 
miles
Distance in the city 
miles
