Answer: Constant of proportionality is 45 miles per hour.
Step-by-step explanation: To find the constant of proportionality you need to do miles/hours. It is always easier to do the first one as it is the smallest and thus eliminates the need to do harder problems.
miles/hours
90/2 = 45
135/3=45
225/5=45 and so on...
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Answer:
Step-by-step explanation:
1: 14.03 x 0.8 = 11.224
14.03 ÷ 0.8 = 17.5375
So, 14.03 x 0.8 < 14.03 ÷ 0.8
2: 6.032 + 1.75 = 7.782
10.142 - 2.36 = 7.782
So, 6.032 + 1.75 = 10.142 - 2.36
3: 578 ÷ 34 = 17
414 ÷ 18 = 23
So, 578 ÷ 34 < 414 ÷ 18
4: 271 ÷ 8 = 33.875
15.05 + 18.825 = 33.875
So, 271 ÷ 8 = 15.05 + 18.825
5: 5.07 x 2.8 = 14.196
19.06 - 4.865 = 14.195
So, 5.07 x 2.8 > 19.06 - 4.865
NOW GO GET SOME DESSERT!
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A man uses his mobile phones for calls and messages in the ratio of 5:7 what is the percentage of its
calls?
Answer: 41.67%
How to solve:
ratio of calls and messages = 5 : 7
sum of the ratio = 5 + 7 = 12
percentage of calls = ( 5 / 12 ) × 100
=41.67%
I hope this was helpful. :)