3u + 4u + 2u = 9u
9u = 90
1u = 90/9 = 10
since black is 2u ( from the ratio given)
2u = 10 x 2 = 20
Answer : 20cm of the pole is painted black.
The bar diagram is in the picture :)
3.125 would be the answer hope this helps
Bella is baking chocolate chip cookies for an event. It takes of a cup of flour to bake 6 cookies. She uses cups of flour for every 50 chocolate chips used. There are a total of 150 chocolate chips for each tray of cookies. If Bella is baking 2 trays of chocolate chip cookies, then how many cookies will she bake in total? A. 32 cookies B. 66 cookies C. 90 cookies D. 40 cookies
Answer:
MN=4
Step-by-step explanation:
LM+MN=LN
4x+2+3x-5=5x+3
7x-5x=3+3
2x=6
x=3
MN=3x-5
MN=9-5=4
MN=4