Answer:
I think C
Step-by-step explanation:
Both rhombuses and trapezoids have 4 angles. Angela can add 9 and 6 which will give her 15 and multiply by 4 which will give her 60.
Angela has 60 angles.
I hope this helped!!! :)
Answer:
b=3 units
h=5 units
a=7.5 units
Step-by-step explanation:
i thnk u can figure this out
Lol u thought I was writing an answer hahahaha
Let
be the volume of 20% solution,
the volume of the 60% solution. We want a total volume of 400 mL in the final mixture, so

Each mL of either solution will contribute a corresponding concentration, and in the final mixture we want the 400 mL to have a 40% concentration, which means we should also have

Solve the system and we get
.