Answer:
5x + 10y = 90
Step-by-step explanation:
If she hiked a total of 90 miles, we can say that 90 miles equals 10 multiplied by the number of times she hiked the 10 mile trail, plus 5 multiplied by the number of times she hiked the 5 mile trail.
x is the number of times she hiked the 5 mile trail, y is the number of times she hiked the 10 mile trail.
Writing this statement in an algebraic form would give us:
5x + 10y = 90.
Answer:
-4
Step-by-step explanation:
Find the rate of change for f(x) = x² - 8x + 15 from x = 0 to x = 4
The rate of change is the rate at which a variable changes over a specific period of time.
Averate rate of change:
First, we need to find the functions for when x = 0 and when x = 4:
For x = 0
f(x) = x² - 8x + 15
f(0) = 0² - 8(0) + 15
f(0) = 0 - 0 + 15
f(0) = 15
For x = 4
f(x) = x² - 8x + 15
f(4) = (4)² - 8(4) + 15
f(4) = 16 - 32 + 15
f(4) = -16 + 15
f(4) = -1
Averate rate of change:
A =
A =
A =
A =
Therefore, the rate of change from x = 0 to x = 4 is -4.
Hope this helps!
Answer:
i beleive its
Step-by-step explanation:
2.50+3c=16.50 c=candy bars
c=5.5
5.5x3=16.50
Bbbbb
Explanation: I’m takin the test to
22,69,210
22+1=23x3=69
69+1=70x3=210