Answer:
y = 
Step-by-step explanation:
3x-2y=-12
-2y=-3x-12
y = (-3x-12)/-2
y =
Hope this helps! :)
(pls mark brainliest)
Answer:
7/18
Step-by-step explanation:
Total Number of Boys in both grades:
4+3=7
Total Number of Students:
8+10=18
Number of boys/ number of students:
7/18
1.First multiply 4(2y) and 4(6) which gives you (8y-24).
2.Then write out the whole problem: (15y-8y-24).
3.Subtract 15y-8y first since they have equal terms. That will give you 7y.
4.Now you have (7y-24).
Hoped this helps!!:-)))
Answer:
Step-by-step explanation:
Answer:
Elena's running speed is 5 miles/hour
Explanation:
The speed is defined as the covered distance per unit time
In the problem, we have:
The distance covered is the length (circumference) of the circular track which is given as of a mile.
We are also given that she completes each lap (she completes of a mile) in of an hour
To get her speed, we will divide the distance covered by the time taken to cover this distance
This is done as follows:
speed = miles/hour
This means that:
Elena can run 5 miles each hour
Hope this helps :)
