I: 635=dimes*10+quarters*25
or shorter
635=d*10+q*25
II: d=q*3+3
Substitute II (d=3q+3) into I to replace d:
635=d*10+q*25
635=(3q+3)*10+q*25
635=30+30q+25q
605=55q
11=q
-> 11 quarters
"What expression represents the number of dimes if q represent quarters"
insert q=11 into II:
II: d=q*3+3
d=11*3+3
d=33+3
d=36
If you would like to divide 2 by 1 6/7, you can do this using the following steps:
1 6/7 = 13/7
2 / 1 6/7 = 2 / 13/7 = 2/1 / 13/7 = 2/1 * 7/13 = 14/13 = 1 1/13
The correct result would be 1 1/13.
Answer:
Janet has three dollars. She decides to start saving money for five months. She wants to have a total amount of fifteen dollars at the end of the five-month period. How much money should Janet save per month?
She starts with three, and p is the amount of money she needs to save per month, and at the end of the period, she should have saved a total of fifteen dollars. In order to solve it, you must find what 12 divided by 5 is and write it as an amount of money. The answer is $2.40 or 2.4.
Step-by-step explanation: