Help i dont understand
1 answer:
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1. My number has two digits.
- 59 is a two-digit number. ✔
2. Double my number is less than 150.
- Double of 59 is 118, which is less than 150. ✔
3. I am not divisible by 12.
- Since 59 is an odd number, hence it is not divisible by 12. ✔
4. My digits are different from each other.
- The digits 5 and 9 are different. ✔
5. The second digit in my number is divisible by an odd number.
- 9 is divisible by an odd number, i.e. 3. ✔
6. My first digit is less than my second digit.
- 5 is less than 9. ✔
7. My digits add up to 14.
- 5 + 9 gives us 14. ✔
Therefore, the required number is .
m = 90 - 6d is the equation to determine m, the number of measures Harita still needs to memorize, as a function of d, the number of days of practice since she began learning the piece
<em><u>Solution:</u></em>
Given that Harita must memorize 90 measures of music for her cello solo at a concert
To find: equation to determine m, the number of measures Harita still needs to memorize, as a function of d, the number of days of practice since she began learning the piece
Let "m" be the number of measures Harita still needs to memorize
Let "d" be the number of days of practice since she began learning the piece
Given that She plans on memorizing 18 new measures for every 3 days of practice
<em><u>Rate per day is given as:</u></em>
Therefore she memorises 6 per day
<em><u>Therefore, the equation that relates 'm' to 'd' is: </u></em>
m = total measures of music she must memorise - (number of measures she memorises per day x d)
m = 90 - 6(d)
m = 90 - 6d
Thus the required equation is found