Answer:
The answer is 7
Step-by-step explanation:
Because 7 times 3 will give you 21, just divide 21 by 3.
Hey there!
Let's make one and solve it.
Fraction division is solved by using a simple rule:
"keep, switch, flip!"
So if we have:
4/8 divided by 5/9
We keep the 4/8, switch the division to multiplication, and flip the 5/9 to 9/5:
4/8 * 9/5 = 36/40 = 18/20 = 9/10
Hope this helps!
Answer:
Step-by-step explanation:
probability of selecting a girl from students is 
probability of girl wearing sneaker from girls is 
or 
hence, probability of selecting a girl wearing a sneaker will be,
⇒ probability = probability of delecting a girl from students × probability of girl wearing sneakers from girls
⇒ probability = 
⇒ probability =
Answer:
1/4(n), $7.50
Step-by-step explanation:
Expanded: cost = 0.25 * chains + 0.25 * pendants + 0.25 * beads
Simplified: c = (1/4)(total number of items)
Expression only: 1/4n where n = # chains + # pendants + # beads purchased
Total cost of 30 beads = 1/4(30) = 7.5 = $7.50
2x²+10x=0
2x(x+5)=0
2x=0 or x+5=0
x=0 or x= -5
