Answer:
1 T-Shirt Costs £7, 1 Hat Costs £3
Step-by-step explanation:
Set t-shirts price is x.l
set hats price is yl
4x+y=31
2x+y=17
y=31-4x
y=17-2x
31-4x=17-2x
14=2x
x=7.
4 x 7 + y=31
y=3.
a t-shirt cost £ 7 . a hat costs £3
Answer:
x= 8/9
Step-by-step explanation:
Open everything up to get 5x+2x-6=-2x+2. Move numbers with an x to the left side and without to the right to have 5x+2x+2x=2+6. Simplify to have 9x=8. Divide by 9 which leaves you with x= 8/9
The probability of the complement of an event is d) sometimes less than the probably of the event itself.
Your complement c=1-p
If you think of a dice you could have the probability to "get the number 1" =1/6, so its complement would be 5/6 which is clearly more
if your event is instead "get a number from 1 to 6" then your probability would be 1=100% and the complement 0 which is less.
Answer:
88 cm.
Step-by-step explanation:
You have 11 peices of track. EACH track is 8 cm long. If you hear the word "EACH" you are multiplying.
All you do is multiply 8 and 11.