Anw:
a
Step-by-step explanation:
72*4=5x
=288
5x=288
x=288/5
=57.6
x=57.6
57.6/72=0.8
4/5=0.8
<span>To get the Greates Common Factor (GCF) of 21 and 40 we need to factor each value first and then we choose all the copies of factors and multiply them:
<span><span>21: 3 7</span><span>40: 222 5 </span><span>GCF: </span></span>The Greates Common Factor (GCF) is: 1<span>
</span></span>
Answer: B 0.5 kWh per day
Step-by-step explanation:
Since the graph represents the function where electricity usage in kilowatts per hour of a clock radio varies directly with the number of days it is plugged into the wall current
The constant of variations will be the gradient ( slope ) of the graph.
Gradient = (Y2 - Y1)/(X2 - X1)
Where X1 = 2, X2 = 6, Y1 = 0.5, Y2 = 1.5
Substitute all the values into the formula
Gradient = (1.5 - 0.5)/( 6 - 4 )
Gradient = 1/2
Gradient = 0.5.
Therefore, a reasonable estimate of the constant of variation is 0.5 kWh per day
First, let’s break down the equation by combining like terms. You get 1a-4b, therefore making it answer choice b.
Answer:
64
Step-by-step explanation:
200 -((108+136) - 54*2)=
200-(244-54*2)=
200-(244-108)=
200-136=
64
