A.) .4 of a balloon is left
To Check:
what I did was divide 172 by 27 and it is 6.37 rounded to ........6 is an equal number so I kept it and .4 will be left over after sharing equally.
B.) 17 more balloons are needs
To Check:
what I was multiply 27 by 7 because each student needs seven balloons and I got 189 after that I subtracted 172 from 189 (189-172=17)
to see how many more balloons are needed.
Answer:
a. f(n+1) = f(n) + 20
Step-by-step explanation:
The second hour, f(2) = 130 is the wage of the first hour f(1) = 110, plus 20.
_____
You have to look at the answers and understand what they mean. (This can be difficult when they are nonsense, as here.)
b — means each successive hour of pay is 110 more than the previous one. Clearly that is not the case for the sequence given
c — equates 0 to 20, total nonsense
d — equates 0 to 110, also total nonsense
Answer:
160 2p coins
Step-by-step explanation:
3/8 x 640 = 240 = 1p coins
240 = 5p coins
240 + 240 = 480
640 - 480 = 160
You can find the number of x intercepts by setting f(x) equal to zero giving you 0=x^4-5x^2. You can factor out an x^2 and divide on both sides (when you divide 0 by anything it is still zero so the x^2 disappears), and you are left with 0=x^2-5, which you can solve easily giving you x=+/- sqrt(5). However, the original equation also has an x intercept at (0,0) which you can see by plugging 0 in for x. So the grand total of x intercepts is 3!
