The answer to number 17 should be 0.0003. Everything else looks fine.
Answer:
It takes them 7minutes to finish 50env
Step-by-step explanation:
We know that jerry can stuff 7 in 2min and tom can do 4 per min, so 8 for every 2min.
So 8+7=15env for every 2min 7.5/min
15+15=30+15=45
50=15x/2 50*2=15x 100=15x 100/15=x x=6.67 then rounded it to 7min
<u>Question 2</u>
1) 
(given)
2) 
(reflexive property)
3) 
are right angles (perpendicular lines form right angles)
4) 
are right triangles (a triangle with a right angle is a right triangle)
5) 
(HL)
<u>Question 3</u>
1) 
is a right angle, 
(given)
2) 
is a right angle (perpendicular lines form right angles)
3) 
are right triangles (a triangle with a right triangle is a right angle)
4) 
(reflexive property)
5) 
(HL)
6) 
(CPCTC)
7) 
bisects 
(if a segment splits an angle into two congruent parts, it is an angle bisector)
Answer:
1. is 7 to 1 and
2. is 3 to 6
Step-by-step explanation:
You get number one's answer by finding to difference between 13 to 7 which Is six. so now you start at 1 and add 6 which would be 7 and would give you your answer of 7 to 1.
You get number two's answer by finding the ratio given which is 1 black square to 2 Grey squares. Since it mentions to triple it you multiply both numbers by 3. which would give you 3 to 6. You know that this is right because it is equivalent to 1/2 which was what the first ratio was.
you're welcome
Answer:
8 have brown eyes
Step-by-step explanation:
50% of 20 is 10 children
40% of 10 is 4 so 4x2 is 8 children
