<span>Mary ran the 5 kilometre race in 45 minutes.
45 minutes = 3/4 of an hour
This means that her speed is
S/t=5/(3/4)=20/3 = 6+2/3 (km / hour)
</span><span>Melanie ran the 2 kilometre race in 17 minutes.
</span><span>17 minutes = 17/60 of an hour
</span><span>This means that her speed is
</span>S/t=2/(17/60)=120/17= 7+1/17 <span>(km / hour)
</span>So, Melanie is faster than Mary.
She had $100 and she gave $3 to her sister so $10-$3=$7 and her parent quadrupled her remaining dollars which was $7 so $7x4=$28 the answer is $28
Answer:
My answer is 9 8/15
Step-by-step explanation:
1 + ( -2/3) + 9.2
= 1 - 2/3 +9 1/5
1/3 + 9 1/5
9 8/15
Answer:
2(3x-4y) (2x+4y)
Step-by-step explanation:
2•3²•x²-2⁵•y²
2(2•3²•x⅖ -2⁵•y²)
2 2
Answer: 6 boxes. average 45 each.
Step-by-step explanation: