8-21
9- -16 i think lemme do the next ones
Answer:
Step-by-step explanation:
<u>The distance is:</u>
<u>Return trip will take:</u>
- 480/75 = 6.4 hours = 6 hours and 24 min
Answer:
1. They help you with estimation
2. It makes numbers simpler and easier to do
3. Makes mental maths much quicker
33 photos in a 4x to 7x ratio
4x + 7x = 33
11x = 33
x = 3
33 photos can be put in a 4(3) to 7(3) ratio
which is a 12 to 21 ratio
so 12 photos on one side, and 21 on the other side to get the ratio of 4 to 7
Note:
<span>a(b) = ab = a x b = a times b</span>
3 2/5 x 4/34 is 2/5 hope its right :)