I think the most simple way to solve this is by writing out a few general expressions;
$40 - $10 = $30
$30 - 4x = y
$10 + y = z
X = Amount of Smoothies
Y = Total Amount left
Z = Total + the $10
Answer:
Step-by-step explanation:
Let x represent the time that they spent biking at the first speed.
If the ride was six hours long, it means that the time they spent biking at the other speed is (6 - x) hours.
Distance = speed × time
For the first part of the ride, they biked at a speed of 7 mph. This means that the distance travelled during the first part of the ride is
7 × x = 7x
For part of the ride, they biked at a speed of 11 mph. This means that the distance travelled during the second part of the ride is
11(6 - x)
Since the total distance that the kids traveled is 54 miles, then
11(6 - x) + 7x = 54
66 - 11x + 7x = 54
11x - 7x = 66 - 54
4x = 12
x = 12/4 = 3
They spent 3 hours biking at the first speed.
They spent 6 - 3 = 3 hours biking at the other speed.
Answer:
y = 1/6 x + 6
Step-by-step explanation:
m = (y2-y1)/(x2-x1)
m = (7-5)/(6-(-6))
m = 2/12 = 1/6
Substitute x and y values with a pair of coordinates,
y = mx+c
7 = 1/6(6) + c
7 = 1 + c
c = 6
Thus, the equation is y = 1/6 x +6
The months where the difference in salinity of surface and bottom waters was the greatest was in April and September.
<h3>What is salinity?</h3>
It should be noted that salinity simply means the accumulation of salt in land as well as water.
In this case, the months where the difference in salinity of surface and bottom waters was the greatest was in April and September.
This is because many events take place such as continuous flowing or river water into the sea, evaporation, and melting of ice.
Learn more about salinity on:
brainly.com/question/2710326
If you mean turn 25/8 into a decimal its 3.125 but if u need it in a mixed fraction its 3 1/8