Complete Question:
Haruka hiked several kilometers in the morning. She hiked only 6 kilometers in the afternoon, which was 25% than she had hiked in the morning.
How many kilometers did Haruka hike in all?
Answer:
10.5 km
Step-by-step explanation:
Given
Represent Morning with M and Afternoon with A
From the second sentence in the question, we have that:
Required
Determine the total kilometers
First, we need to determine the kilometers moved by substituting 6 for A in the second equation
Next, is to determine the total using:
Since you add a number x amount of times by itself when you multiply it by x, we have, for example, 3*2=3+3=6. In addition, 3*3=3+3+3=9 and 3*4=3+3+3+3 (4 times)=12.
Answer:
D. -3z+2
Step-by-step explanation:
Steps:
Remove parentheses: (a) = a
= 5z+9-(8z+7)
....
Simplify
5z+9-8z-7: -3z+2
Answer: Graph the parabola using the direction, vertex, focus, and axis of symmetry.
Direction: Opens Up
Vertex: (3, -1)
Focus: (3, - 3/4)
Axis of Symmetry: x = 3
Directrix: y = - 5/4
Step-by-step explanation:
graph{3x/(x^2-1) [-18.02, 18.02, -9.01, 9.02]}
2/3x4 =8/12
3/4x3 =9/12
8/12+9/12=17/12
17/12=1 5/12
1+2+1 5/12 = 4 5/12
