Answer:
a) 5:3
b) 7.5:5.3
Step-by-step explanation:
150min : 90min (1 and a half hour)
10 : 6
5 : 3
150 × 10 mm : 1060 mm
1500 : 1060
750 : 530
7.5 : 5.3
(0,-15) (1,-24) (2,-33) those the options i got
In this question, they gave you the system of equations. You just need to use the two of them.
We want to find the m or the number of the multiple-choice questions. So we need to turn our last equation in the form of 'm's by translating the 'f's into 'm's.
If we know the m form of f, we can convert the second equation and find the answer:
Plug in the m value of f:
Distribute the 5:
Subtract -75 from both sides:
Combine like terms:
Divide both sides by -2:
So, we learned that the number of the multiple-choice questions is 12.