Answer:
1: something because you didn't give another number. For example, 1:2 is 1 golf ball to 2 golf tees. A ratio is one thing comparing to another. Hope this helps! I learned this in 6th grade. Brainly if so!
Step-by-step explanation:
Multiply top equation by -2, then add equations so b drops out....solve for a...plug in a to get b
Answer:14-1/3 if that makes sense to you
Step-by-step explanation:
Answer:
12.5 unit square
Step-by-step explanation:
The area of a trapezoid is calculated with the following formula:
(b1 + b2)*h/2 (b1: base, b2: base, h: height)
(4+6)*(2.5)*2 = 12.5
Class B has the most consistant sleep because there is less of a difference between 6.87 and 3.65 than the other classes.
