Using math skills to answer a question
So I guess this would look like this originally 113/10, then as a mixed number 11 3/10
Step-by-step explanation:
2 * 2 for potatoes = £4
3 * 3 for carrots = £9
90p * 3 for turnips = 270p = £2.70
total price = 9+4+2.70=15.70
change = 20 - 15.70 = £4.30
Answer:
<em>300watts</em>
Step-by-step explanation:
Given the power generated by an electrical device modeled by the equation
P(x) = -12x²+120x
The maximum power generated occurs when dP(x)/dx = 0
dP(x)/dx = -24x+120 = 0
-24x + 120 = 0
-24x = -120
x = 120/24
x = 5
Substitute x = 5 into the modeled function to get the maximum power as shown;
Recall that: P(x)=-12x^2+120x
P(5) = -12(5)² + 120(5)
P(5) = -12(25) + 600
P(5) = -300+600
P(5) = 300
<em>Hence the maximum power generated by the circuit is 300watts</em>
#9 . . . #12, and #14: Excellent. All correct, and good estimates.
#13: A very picky comment:
Your math is correct, but the camera can't take 2/3 of an image.
That's why the question asked "How many complete images ...".
After 66 images, there is still some time remaining, but not enough
for another image. So it captures 66 complete images in 3 seconds.
If you are really in elementary school, then I think you're doing
the work of a prodigy. Keep it up ! And best of luck to you.
