Answer: choice C) 3
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Explanation:
Using any two points, we can find the slope through the slope formula. In this case, I'm using the first two points (from the first two rows)
m = (y2 - y1)/(x2 - x1)
m = (1-(-2))/(-1-(-2))
m = (1+2)/(-1+2)
m = 3/1
m = 3
The slope is 3 meaning that each time x increases by 1, y increases by 3.
To convert pounds to ounces we can use a conversion factor. For instance, a conversion factor can be used to turn 2 pounds to ounces. Lets do that real fast.
First we need to find out how many pounds are in an ounce.
1 pound = 16 ounces
OR
1:16
OR
1 lb/ 16 ounce
OR
16 ounces / 1 lb
Now to convert we just use the conversion factor by multiplying the pounds by the conversion factor 16 ounces / 1 lb
Answer:
10x+4 = 84
Step-by-step explanation:
Azul bought 10 reams of paper at x dollars per ream
10x
The tax was 4 dollars
10x+4
The total cost was 84 dollars
10x+4 = 84
Answer:
The lorry is traveling at a speed of 13 m/s which is less than the speed limit of 13.89 m/s
Step-by-step explanation:
The limit here is 50km/h
The speed at which the lorry is traveling is 13.5m/s
So we want to show that the lorry is traveling at a speed which is below the speed limit.
What we need to do here is to convert the speed limit to the same unit at which the lorry is traveling
What we are saying here is that we need to convert km/h to m/s
Hence, we are converting 50 km/h to m/s
What we need to do here is to convert the km to m by multiplying by 1000 then covert the hour to seconds by multiplying by 3600(in this case the time is the denominator so we shall be dividing)
Thus 50 km/h = (50 * 1000)/3600 = 13.89 m/s
Since 13m/s is less than 13.89 m/s
Then the lorry is traveling below the stipulated speed limit
