Answer:
20
Step-by-step explanation:
If the ratio of boys is 9 there are 90 boys. If 9=90 then 1= 10. 10 x 2 = 20
I hope this helps :0)
Multiply 325326×(325325/2)=52,918,503,138 How it works:
know that 325325+1 is 325326, then 325324+2 is the same number, therefore you will get this number as many times as half of biggest number since you sum every last biggest number-1 with every last smallest number+1. so just multiply and you will get
Answer:
2,8
Step-by-step explanation:
Answer:
1: D
2: B
Step-by-step explanation:
3x + 1 + 5x = 7 + 15 + 7x
8x + 1 = 22 + 7x
x = 21