Assessment: To help assess student learning in her developmental math courses, a mathematics professor at a community college im
1 answer:
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Answer:
Step-by-step explanation:
Question asked:
Select all of the ratios that are equivalent to 4 to 7.
1) 5/8
2) 12/10
3) 8.14
4) 5 to 10
5) 16/28
6) 9 to 16
<u>Solution</u>:
To know the ratios are equivalent to or not, we have to check each by cross multiplication:-
1)
By cross multiplication:
Not equivalent.
2)
By cross multiplication:
Not equivalent.
3) 8.14 =
By cross multiplication:
Not equivalent.
4)
By cross multiplication:
Not equivalent.
5)
By cross multiplication:
<em><u>Yes, this is equivalent.</u></em>
6)
By cross multiplication:
Not equivalent.
Thus, only is equivalent.
Answer:
50 Minutes.
Step-by-step explanation:
The function c approximates the total number of calls made after m minutes since the start of the phone tree.
We need to find the number of minutes after which the total number of calls will 363.
Substitute c(m)=363 in the given function.
Multiply 3/2 both sides.
Add 1 on both sides.
On comparing both sides we get
Multiply both sides by 10.
Therefore, the total number of calls will 363 after 50 minutes since the start of the phone tree.