4+8+(5X7)+5(7-9)=6+B
USE PEMDAS
5X7=35
4+8+35+5(7-9)=6+B
(7-9)=-2
4+8+35+5(-2)=6+B
5X-2=-10
4+8+35+-10=6+B
4+8+35+-10=37
minus both sides by 6
37-6=31
6+B-6=B
31=B or B=31
Answer: 107.5
Step-by-step explanation:
120 x 14= 1680
90 x 10= 900
Now you add 1680+900= 2580
Then you divide the distance (2580) between the speed (14+10)
2580/24= 107.5
Answer: No there isn't
Step-by-step explanation: What I did was I seen what 15/3 was and it = 5 so what you're supposed to do is, divide the top and bottom by each other to see if they're both all going to =5 or see what= the bottom number. If they don't all= the same number when you divide them, then there's no relationship
For example: 15/3=5 5/20=4, 7/25= 0.28, and 9/30= 0.3
They're all = to something different
Answer:
AB : XY = 2 : 3
Step-by-step explanation:
We know that :
So, if the areas ΔABC and ΔXYZ are in the ratio 4 : 9, then :
- ΔABC : ΔXYZ ∝ AB² : XY²
- 4 : 9 ∝ √4 : √9
- 4 : 9 ∝ 2 : 3