Brenden runs six times a week for thirty minutes and lifts three times a week for twenty minutes. Write a mathematical expressio
n for the number of hours Brenden works out in a week.
1 answer:
Answer: 
Step-by-step explanation:
6(30)+3(20)
=180+60
= 240/60
=4 hours
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The answer should be 1/9y^4
Answer:
<u>6 kg</u>
Step-by-step explanation:
J = mass of nuts gathered by James
H = mass of nuts gathered by Harry
J = 12 + H
J = 3H
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Answer: x + y
Step-by-step explanation: I think that’s it, not too good with that stuff, sorry
Answer:
Q6: B Q7: D Q8: C Q9: D Q10: A
Answer:
<h3>#7</h3>
(a)
<u>Sample space:</u>
- 1*1, 1*2, 1*3, 1*4,
- 2*1, 2*2, 2*3, 2*4,
- 3*1, 3*2, 3*3, 3*4,
- 4*1, 4*2, 4*3, 4*4
Total 16 outcomes
(b)
- (i) P(even) = 12/16 = 3/4
- (ii) P(3x) = 7/16
- (iii) P(perfect square) = 4/16 = 1/4
<h3>#8</h3>
(a) <u>Sample space:</u>
- 1T, 1H, 2T, 2H, 3T, 3H, 4T, 4H
Total 8 outcomes
(b)
(i) 1T, 3T
(ii) 1H, 4H
- P(H and square) = 2/8 = 1/4
(iii) 1H, 2H, 3H, 4H
