Do 1* 2/3 first. that's 2/3. Then we have to subtract 2/3-1/2.
To do this we have to make sure the denominators are the same number. In this case it will have to be a multiple of 3 and 2- the easiest one being 6.
Start with 2/3. Multiply both the top and bottom of this fraction by 2. You get 4/6.
The 1/2. Multiply the top and bottom of this fraction by 3. You get 3/6.
Now you can subtract 4/6 - 3/6. You only subtract the tops of the fractions, so you'd get 1/6. The answer is 1/6.
1. check the pic at the bottom.
2. Since we are asked for percentage, so a ratio, let the number of kids with both umbrellas and raincoats be 8.
Let x be the number of children with raincoats, but not umbrellas
Let y be the number of children with umbrellas but not raincoats.
3. Then, x+y+8=100 (100% is 100, since we assumed 8% to be 8 kids)
this gives us x+y=92.
4. "The total number of kids with umbrellas is twice the total number of kids with raincoats. " :
8+y=2(x+8)
8+y=2x+16
y-2x=8
5. substitute x=92-y in y-2x=8, we get
y-2(92-y)=8
y-184+2y=8
3y=192
y=64
64% ofkids bring only an umbrella.
Answer:
(x + y)(p - q)
Step-by-step explanation:
Given
px + py - qx - qy ( factor the first/second and third/fourth terms )
= p(x + y) - q(x + y) ← factor out (x + y) from each term
= (x + y)(p - q)
Answer:
Domain: -2 < x < 2
Range: 1 < y < 5
Step-by-step explanation:
Domain is the set of numbers that are on the x axis
Range is the set of numbers that are on the y axis