Distance = 280 km
Average speed = 10 km/h
Time = distance/speed
Time = 280 km/ 80 km/h
=3.5 hours
If the driver’s speed reduced by 10 km/h
Speed = 80 - 10 = 70 km/h
Time = distance/ speed
Time = 280 km / 70 km/h
= 4 hours
The time would be longer by : 4 -3.5 = 0.5 hours
0.5 * 60 = 30 minutes
It would be longer by 0.5 hours or 30 minutes
The value of y is 3 when x is 6.
Solution:
The given table is the amount of cheese in ounces and the cost price.
Let x represents the amount of cheese and y represents the cost price.
The formula which derived from the table is y = x ÷ 2.
That is .
<u>To find the value of y when x is 6:</u>
Substitute x = 6 in the formula, we get
y = 3
Hence the value of y is 3 when x is 6.
(4m+1)*(4m-1). This is the factorized quadratic equation written in the form of 2 multiples.
Answer:
Both F and Z have symmetry.