Answer:
A) 199 to 426 students
Step-by-step explanation:
We add and subtract the margin of error on the original percentage
This leaves us with 30% and 14%
30% of 1420 is 426
14% of 1420 199 (rounded to whole number)
Answer:
6
Step-by-step explanation:
f(x) = 2(x-5)
f(8) = 2(8-5)
- parentheses comes first so, 8-5 = 3
- 2(3), so multiply and the final answer is 6
f(8) = 6
Top left
x = 25
bottom left
x =81
right
x =17
Start by think that 50% can be looked at as 5/10.
Out of the remaining 5/10, 1/5 is fruit cakes, leaving the remaining 4/5 to sponge cakes. Which means that 40% of the cakes were sponge cakes.
50% = party cakes
10% = fruit cakes
40% = sponge cakes
