Answer:
3 because there are 7 pizzas
Ok so first you need to identify what you are looking for... you need to find x.
to do that you need toge it on one side. so cancel out the "-2x" on the left side by adding 2x(on both sides, don't forget you add common variables). now you should have something like this...
-15=8x+9
now all you have to do is get rid of the 9 by subtracting 9 on both sides
you should have
-24=8x
With that, all you have to do now is divide 8 into both sides and it should look like a fraction now
-24/8=8x/8
the 8x/8 will cancel out the 8 and you will have
-24/8=x
Simplify that and you should get
-3=x
need me to explain it with fewer words?
Answer:
You know if it is day time or night time
Step-by-step explanation:
Answer:
1. Rate needed 9/6; Unit rate is 1.5/1; 1.5 cans of white paint are needed for each can of blue.
2. rate needed = 12/6; unit rate = 2/1; Need 2 cups of water for every scoop of fruit mix.
3. 70 minutes
Step-by-step explanation:
1. Set up a ratio
3white/2blue = xwhite/6blue
3/2 = x/6
cross multiply 2x = 18; x = 9
rate needed = 9/6
Unit rate is 1.5/1 (divide 3 by 2 or 9 by 6 to get unit rate_
2. 3/1.5 = x/6
1.5x = 18; x = 12
rate needed = 12/6
unit rate = 2/1
3. Set up a ratio.
3.5/.25 ( 1/4=.25)
3.5/.25 = x/5
.25x = 3.5(5)
.25x = 17.5
x = 70 minutes
