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Mars2501
9 days ago
15

(b) we often read that iq scores for large populations are centered at 100. what percent of these 78 students have scores above

100? (round your answer to one decimal place.)
Mathematics
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Alex can ski 960 meters in 5 minutes. If his skiing speed is increased by 20 m/min, how many meters can he cover in 10 minutes?
tester [12383]
Initially, we need to determine how fast he skis in a minute without considering any speed increase.
To do that, we'll divide the total distance by the time.
960 divided by 5 equals 192.
Therefore, his speed is 192 meters per second.
Now, let's add 20 to this figure.
192 plus 20 equals 212.
Now, to calculate how far he can travel in 10 minutes, we multiply 212 by 10.
212 times 10 equals 2120.
Thus, Alex can cover 2120 meters in 10 minutes.
3 0
2 months ago
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A store sold a case of scented candles for $17.85 that had been marked up 110%. What was the original price?
Zina [12379]
1.1x = 17.85 x ≈ 16.227272727272727... Rounded to $16.23
5 0
2 months ago
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Rosa is selling hotdogs, h, for $4 at a fair. She spent $200 on supplies for the sale.
tester [12383]

Answer:

the quantity sold

Step-by-step explanation:

4X she sold - 200 = p

3 0
2 months ago
Street sweeping vehicles can clean 3 miles of streets per hour. A city owns two street sweepers, and each sweeper can be used fo
AnnZ [12381]
We know that
In a span of 4 hours (comprising 3 working hours and 1 hour for refueling)
each street sweeper can clean------> 3 miles*3 =9 miles

divide 18 hours by 4
18/4=4.5
4.5 equates to 4 cycles of 4 hours plus 2 hours

Multiply 4 by 9 miles
4*9=36 miles

within the 2-hour timeframe (<span>in this time, no refueling occurs)
</span>3*2=6 miles

each street sweeper can cover in 18 hours-----> (36+6)-----> 42 miles
two street sweepers will clean in 18 hours=2*42------> 84 miles

the result is
84 miles
4 0
1 month ago
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