Answer:
1 3/4 miles in 1/4 hour.
Step-by-step explanation:
Write and solve an equation of ratios:
x (1/4) hr
--------- = ------------
14 mi 2 hr
Cross multiplying, we get 2x = (1/4)(14), or
x = (1/4)(7), or x = 7/4
Steve can jog 7/4 miles in 1/4 hour. That's 1 3/4 miles in 1/4 hour.
Answer:
Problem 8 is No and Problem 9 is Yes
You can use a system of equations.
x=group 1
y=group 2
x+y=28
2x+4=y
Isolate the variable in equation 1.
y=-x+28
Substitute it into equation 2.
-x+28=2x+4
Solve.
-3x=-24
x=8
Substitute it into one of the equations for y.
-x+28=y
-8+28=y
y=20
There are 8 students in one group and 20 students in the other.
Hope this helps!
Correct me if I’m wrong but I believe it to b
Answer:
m < 4
Step-by-step explanation:
Given
2m + 6 > 7(m - 2) ← distribute
2m + 6 > 7m - 14 ( subtract 2m from both sides )
6 > 5m - 14 ( add 14 to both sides )
20 > 5m ( divide both sides by 5 )
4 > m , thus
m < 4
