Answer:
18. 8x+40
8. 2hours 30 minutes
Step-by-step explanation:
8. 8x2= 16
8 divided by 2 is 4
4+16= 20
4mph = 30 minutes
8mph = 1 hour
8+8+4= 2 hours and 30 minutes
Answer:
We just multiply 75 with 3 to make it a perfect square. This is because, 75 = 5 × 5 × 3. 3 doesn't have a pair. Thus 75 × 3 = 225 and √225 is 15.
Step-by-step explanation:
Answer:
Step-by-step explanation:
L1 -x + 2y = -1
L2 5x - 10y = 6
-x + 2y = - 1 multiply by -1
x - 2y = 1 multiply by 5
5x - 10y = 5 is similar that 5x - 10y = 6
The system has no solution
Answer:
16 because if each chair has 4 legs you multiply that by the amount of chairs you have. 4x4=16
Step-by-step explanation:
4x4=16
Answer:
michelle, kaley, and Rebecca.
Step-by-step explanation:
They have sold 100 tickets so far ($75), they need to sell 380 ($285) tickets in total and need to sell 280 more tickets.
Michelle was wrong because she should have divided 210 (how much more money they need to sell on tickets) into .75 (which is how much each ticket costs).
Kaley was wrong because she should have also divided 210 into .75 like Michelle.
Rebecca should have also divided 210 into .75.
Eva was the only correct one.
