3 years ago

If y varies directly as x, and y=8 when x=5, find y when x=10

1 answer:

5 0

You have to set it up as a ratio 8/5 = y/10, then you have to cross mutliply and divide. So 8×10=80 and 80/5= 16 so y=16.

You might be interested in

Please answer correctly !!!!!! Will mark brainliest answer !!!!!!!!!!

Rasek [7]

Answer:

see below

Step-by-step explanation:

1. 0 = (r + 1)(r + 8)

Using Zero Product Property, r = -1, r = -8

2. h(r) = (r + 1)(r + 8)

= r² + 9r + 8

= (r + 9/2)² - 81/4 + 8

= (r + 4.5)² - 12.25 (Complete the square)

Vertex: (-4.5, -12.25)

5 0

3 years ago

Please help this is my last question!!!!

vlada-n [284]

Answer:

20%

Step-by-step explanation:

4 0

2 years ago

NEED HELP FAST PLEASE PROVIDE WORK SO I KNOW YOU KNOW WHAT YOUR DOING

pashok25 [27]

Okay well, if you make a graph, Point A (7,0) and Point B (4,6) are in the top right quadrant. and Point C (1,1) and Point D (5,3) are in the top left, top right, and bottom left quadrant (I'll link a photo of the graph.)
so the lines intersect and make it perpendicular